Tag Archive for: bridge design

Seasoned builders know the importance of getting their ducks in a row before starting a new building project. But crossing your ts and dotting your is can be even more important if you are newer to managing construction projects; one misstep could mean the difference between finishing on time and massive delays and extra costs.

To ensure that you are successful, here are some tips for starting a new building project and ensuring a successful construction takeoff.

What is a “construction takeoff”?

Before you break ground on a new construction project, it’s important for project managers to ensure that all the logistics are covered. This period of preparation is essential for a successful “construction takeoff”, which refers to the process of listing and measuring the materials required for a new project and calculating the costs to complete it.

Tips for Starting a New Building Project

Here are a few tips to keep in mind before starting any construction project:

Make a list and check it twice

Build a list of all the raw and prefabricated materials you may need. While making this list may sound like the dictionary definition of a construction takeoff, remember that assembling some materials requires additional items and steps.

Determine the quantities and costs of the items you need

This seems like a given, but this is definitely an important step that you do not want to take lightly. Providing cost estimates for your project and keeping true to them as much as you can is a core part of your building contract.

Constant contact

Establish weekly or monthly check-ins to keep up-to-date with your architects, designers, and project leaders. Make sure that everyone is always on the same page and has the same information.

Measure twice and cut once

One of the basic principles in carpentry is to measure twice and cut once. The same can be said for takeoffs. Give your findings and measurements a second look (and maybe even a third) to confirm that you’re making the right cut.

Keep detailed records

Keep all versions and drafts of your plans and measurements. Not only can you refer to first drafts throughout the process, but you can also save these notes as templates for future successful projects.

Whether you are beginning your first or fortieth construction project, these steps are an essential part of the process and will support you in achieving a successful takeoff and project completion.

Building the Best with U.S. Bridge

From takeoff to ribbon-cutting, US Bridge provides comprehensive, high-quality, and time-efficient service. As industry leaders and pioneers in several construction industry firsts, we know the importance of top-of-the-line materials, unique and reliable designs, and the industry’s top engineers.

Working with us means working with professionals at every stage of the process. Get in touch with us now to begin the process, or use our exclusive Bridgescope tool for a jumpstart.

Have you ever passed by an abandoned structure that’s fallen into disarray and thought, “What a waste?” Luckily, many of these eyesores have been turned into beautiful, green spaces for public recreation. Here are some examples of neglected public infrastructure converted into green spaces and why they’re so great for the community!

Public Infrastructure as Parks

Castlefield Viaduct Sky Park – Manchester, UK

This viaduct in Castlefield, the oldest neighborhood in Manchester, was built in 1892. It was originally used to carry rail traffic in and out of Manchester Central Station. When the viaduct fell out of use, it sat unused for over 50 years. Now, it has been beautifully repurposed and renovated to serve as Manchester’s new “garden in the sky’”.

 

Promenade Plantée – Paris, France

Another converted, abandoned viaduct, the Promenade Plantee in Paris is a magical, green walkway that sits 10 meters above the street and actually served as the world’s first elevated walkway in 1993. The beautiful stroll begins at the Bastille, winds through the Gare de Lyon and Bois de Vincennes for three miles, and finishes at the Bois de Vincennes.

High Line – New York, New York, USA

The High Line in New York is a continuous, 1.45-mile-long, elevated green walkway that starts on the west end of the Garment District and ends in Chelsea. This incredible park was previously a railway called the West Side Elevated Line but fell into disuse in the 1980s.

The High Line was set to be demolished before Joshua David and Robert Hammond founded the Friends of the High Line organization and fought to save and convert the structure into a public space.

Bridge of Flowers – Shelburne Falls, Massachusetts, USA

This bridge was built in 1908 for trolley use, from the railroad yard in Buckland, across the Deerfield River, to the nearby factory towns. As cars took over the transportation industry, the trolley bridge became obsolete in 1927.

Two years later, city locals and members of the Shelburne Falls Women’s Club began to convert the bridge into a public garden, using supplies from their gardens. Today, the bridge serves as a landmark for locals and visitors alike to marvel at the gorgeous flowers and the spirit of volunteerism that it took to make this public space a reality.

Utilizing unused public infrastructure for public use is not only good for community morale, but it also has positive economic and environmental impacts.

Benefits of Converting Public Infrastructure to Parks

Besides turning trash into treasures, there are many benefits to converting public infrastructure into recreational, green spaces for the community:

Community Health:

Having access to more public green spaces, locals have greater opportunities to exercise, gather as a community, and absorb some sunshine and fresh air.

While the public health crisis continues to skyrocket, including increases in heart disease and obesity, making the effort to incorporate more of these green spaces for public use is essential to promoting the health and wellness of the community.

Environmental impact:

The existence of these spaces promotes biodiversity in largely urban areas: community gardens with regional plants for pollinators. Through the addition of trees and other vegetation, these spaces also lessen air pollution and the excessive heat that steel and concrete collect.

Nod to local culture:

Enlisting locals to use their voices and creative expression in these new community spaces is important. Since these parks will be used by the community, they should reflect the voices of those who live there. Artists, musicians, and local business owners can all gather here and use these spaces to promote accomplishments and community interests.

Reusing old structures:

Reusing existing public infrastructure instead of demolishing and replacing it is not only more cost-effective but also more environmentally impactful. Why tear down an old bridge or railroad and build condos when you can convert the space into a community park?

Connecting Communities Across the World

US Bridge serves communities around the country by building durable, reliable bridges quickly and efficiently. We use only the best tools and techniques, relying on our team of experts to ensure that your project is a strong reflection of your community.

Contact us for a free estimate, or use our industry-leading Bridgescope tool to begin planning your project now!

 

Have you ever been driving on a bridge you’re not familiar with and then, all of a sudden, the road starts to lead you underwater? You may feel nervous, amazed, and even confused at first, but bridge tunnels are safe and incredibly effective transportation. Here is an overview of a bridge tunnel, its purpose, and some famous examples from around the world.

What is a Bridge Tunnel?

Bridge tunnels are structures that feature both a bridge section and at least one underwater tunnel section. The purpose of these structures is to allow for the continuous and simultaneous flow of vehicle and boat traffic.

An alternate solution is a moveable bridge, which is a bridge that can move or lift in order to accommodate the passage of boats and ships. There are many types of movable bridges that have been in use for hundreds of years, including drawbridges, vertical-lift bridges, and swing (pivot) bridges.

The drawback is that moveable bridge traffic can hold up traffic and aggravate commuters, especially near bodies of water where shipping is common.

Enter the bridge tunnel. This engineering marvel makes it so that all traffic can continue to flow; boats, trucks, cars, and cargo ships can all use the same transportation space in peace without disrupting one another.

Famous Bridge Tunnels

The Chesapeake Bay Bridge Tunnel

Did you know that all of the bridge tunnels in the United States are located in the state of Virginia? Perhaps the most famous of these Virginian marvels is the Chesapeake Bay Bridge Tunnel. This 60-year-old structure spans 17.6 miles in total length, from shore to shore. This tunnel consists mostly of bridge roads, but because of the importance of shipping in the bay, two tunnel sections were built into the main shipping channel crossings.

Each tunnel is over one mile long and easily allows for the passing of ferries and cargo ships without disrupting the flow of traffic. At the time of its completion in 1964, it was named “one of the seven engineering wonders of the modern world.”

The Hampton Roads and Monitor-Merrimac Memorial Bridge Tunnels

Prior to the Chesapeake Bay, Virginia boasted the world’s first-ever bridge tunnel to finish construction. The Hampton Roads Bridge Tunnel, which connects Hampton and Newport News to Norfolk and Virginia Beach, was completed in 1957 and measures 3.5 miles in length.

The third and final bridge tunnel located in the United States is the Monitor-Merrimac Memorial Bridge Tunnel, which connects the Virginia Peninsula cities of Newport News and Hampton to Suffolk and Chesapeake. This was completed in 1992 and measures 4.6 miles in length.

These two bridge tunnels have significantly improved the flow and amount of tourism traffic between all of these high-volume areas, which benefits residents and visitors alike.

The Hong Kong-Zhuhai-Macau Bridge

In 2018, the world’s longest bridge tunnel completed construction and opened for public transportation in China. The Hong Kong-Zhuhai-Macau bridge measures a total of 34 miles in length, connecting Hong Kong to the Pearl River Delta in Guangdong province and the city of Macau. By significantly reducing travel time between these three regions, Chinese government officials are optimistic about the economic benefits and tourism booms for all areas.

The Way of the Future?

Whether traveling by land or sea, commuting over a bridge tunnel can save a lot of traffic jams and headaches. As more and more cities see the potential benefits of these structures, perhaps these architectural wonders will be the way of the future. If a body of water is long enough and the traffic in the area is heavy enough to warrant building a bridge tunnel, it could help commuters, residents, and visitors all have a better travel experience.

Built to Last

With more than 80 years of bridge-building expertise and as an AISC-recognized supplier, we know what it takes to complete the task, no matter the difficulty. We use only the best resources to build strong, dependable bridges. We take pride in offering a huge selection of prefabricated bridge designs that we are certain will perfectly suit the demands of your particular project.

Contact us today to start your next project, or check out our premier BridgeScope tool to get a head start on the process.

Whether you are dealing with a giant suspension, cable-stayed, or truss bridge, your structure is sensitive to corrosion over time. Many things can cause corrosion, including natural elements like fire and water damage. But over time, corrosion will reduce the strength of a bridge’s structural elements, lower the load-bearing capacity, and increase fatigue on the structure.

To help maximize the strength and integrity of your bridge structure, here are several practical ways to combat bridge corrosion.

Regular Inspections

This one is self-explanatory but still the most reliable method to avoid bridge corrosion. Inspect bridges regularly and take note of any warning signs of corrosive damage. This will allow you to take early action and prevent catastrophic damage before it happens.

Also, make sure not to limit inspections only to the primary structural elements. Check things like the utility infrastructure elements that are suspended beneath bridges: hangers and seals are often affected by corrosive substances and can cause significant damage to the overall structure if left unattended.

Repairs

During your regular inspections, you may encounter regular signs of wear and tear on the structure. Getting a head start on making these repairs can prevent larger, more serious structural damages from accumulating in the future. For example, make sure to repair cracks and potholes as soon as possible; this will help prevent fluids from penetrating the roadbed and damaging the substructure.

Here are a couple of key fixes to consider:

  • Apply an epoxy coating to the reinforced steel embedded within the concrete beams and pillars. While this may not completely halt the corrosion process, it will definitely slow it down between inspections.
  • Use less permeable concrete when making repairs to the bridge infrastructure. This can help prevent water from reaching and rusting the internal metal substructures.
  • Apply a sealant between the bridge deck and the upper driving surface. It will prevent seepage and pooling of corrosive solutions on and around the bridge’s metal components.

Galvanization

Many builders utilize the hot-dip galvanizing technique when constructing bridges. After properly cleaning and preparing the steel, it is submerged in 85% pure molten zinc, which reacts with the iron steel to create a strong, bonded coating.

There are many benefits to galvanizing. Mainly, galvanized steel does not require regular maintenance; in fact, galvanized steel prevents corrosion for up to 100 years in many cases. In fact, a galvanized bridge can reduce regular bridge maintenance by 50%.

Heating systems

If a bridge exists in a climate with extreme winter weather conditions, installing specialized heating systems can help deter the buildup of ice and snow. Using these systems can reduce the use of more harmful chemical solutions and require a large upfront investment, but they can pay off over time, especially in cold, snowy climates. This can also cut into the cost of workers needed to apply melting solutions, clear snow, and perform additional bridge maintenance and repairs.

Built to Last

As industry leaders and an AISC-recognized supplier, we guarantee the highest quality steel for every project. We build durable, reliable bridges quickly, using only the best tools and techniques available. Our pride comes from our wide variety of prefabricated bridge designs, which we know will easily meet your unique project needs.

Contact us for a free estimate, or use our industry-leading Bridgescope tool to begin planning your project now!

Some locations are defined by their distinct skylines or unique transportation systems. But many iconic cities also boast famous bridges that decorate their harbors. These examples stand across the world as great bridges that are the peak of architectural accomplishment.

These bridge designs have been adapted and enhanced in keeping with modern innovations, and each design serves a particular purpose for their city’s needs.

In appreciation for these marvels of human innovation, here are five of the world’s most famous bridges.

1. The Danyang-Kunshan – Suzhou, China

The Danyang-Kunshan bridge in China is the world’s longest bridge, measuring over 100 miles (164.8 kilometers) in length. This bridge connects Shanghai and Nanjing, two of the largest cities in China.

The bridge was completed within its original 4-year timeline, despite difficult terrain and canals, due in large part to the over 10,000 construction workers working on the project. The construction of the bridge cost $8.5 billion and was expertly designed to withstand the typhoons and earthquakes that frequent China’s landscape.

2. The Millau Viaduct – Creissels, France

The Millau Viaduct in France is the world’s tallest bridge, with a structural height of 336 meters (1,104 ft), which is taller than the Eiffel Tower! This cable-stayed bridge crosses the Gorge valley of the river Tarn, which has helped with traffic congestion by shortening the travel time between Clermont-Ferrand and Beziers. The Millau Viaduct is supported by multi-span cables placed in the middle and two thin, flexible columns that form a supportive and easily recognizable A-frame.

3. London Tower Bridge – London, UK

How many famous bridges actually have songs written about them? The London Tower Bridge is easily one of the most recognizable structures in the entire world. The two distinct towers connected by two parallel walkways have given this bridge its rightful place among the most iconic structures in history.

Located on London’s River Thames, this iconic engineering marvel was built with a combination of suspension and bascule structural elements. This bridge is called the London Tower Bridge not only for its distinct towers but also for its proximity to the historical royal prison, the Tower of London.

4. Golden Gate Bridge – San Francisco, USA

This famous bridge can boast being in the opening sequence of several American television shows (Full House to name one!). The Golden Gate Bridge is an architectural staple for the city of San Francisco and is another easily recognizable bridge.

Joseph B. Strauss designed the 894,500-ton, iconic red bridge to connect the city of San Francisco and Marin County. The Golden Gate measures 4,200 feet in length, which makes it one of the longest suspension bridges in the world.

5. Rialto Bridge – Venice, Italy

The Rialto Bridge is, by far, the shortest bridge on this list; it only stretches roughly 104 feet across the narrow Grand Canal in Venice, Italy. In addition to being a popular tourist spot, this iconic arched bridge is one of the oldest bridges that remains perfectly intact and continually in use.

The Rialto Bridge was designed in the early 16th century by Antonio da Ponte, who took his inspiration from a bridge design that dated back to the 13th century. It has two inclined ramps, three walkways, and a span that allows for easy passing of boats through the iconic Venice canals.

These five famous bridges are only a few examples of architectural marvels, but there is no shortage of functional and stunning bridges all over the world. As time goes on, architects continue to improve bridge designs in order to meet the needs of an ever-changing world.

Building the Best with U.S. Bridge

As industry leaders and pioneers in several construction industry firsts, we know the importance of high-quality materials, ground-breaking designs, and reliable engineers. We’re proud to provide a comprehensive service that is easy to understand and time-efficient. That’s why we are the go-to for so many builders!

Working with us means working with professionals at every stage of the process. Get in touch with us now to begin the process, or use our exclusive Bridgescope tool for a jumpstart.

Since being introduced to the workplace in the 1980s, computers have greatly altered the world including the construction industry. With time, computers and software began to improve the 2D drawing process, along with the ability to perform complex structural calculations and manual drafts, allowing users to complete designs much more efficiently.

Now in 2023, computational design is a new approach to the design process with far-reaching implications. It transforms the way we create by utilizing computer programs and human analysis for artificial intelligence.

What is Computational Design?

Computational design is a technique for creating things that use complex computer processing to optimize a set of predetermined parameters and procedures. Every action taken by a designer is then converted into machine code. Algorithms for generating design models or finishing design analyses are then produced in the software using this data along with factors unique to the current project.

Typically, a designer would utilize computer-aided design (CAD), Bridge Information Modelling (BrIM) software, and their own expertise and intuition to produce designs.

When used correctly, computational design can be a more effective and helpful way to boost productivity and make designs that are more reliable.

The Three Types of Computational Design

In computational design, there are three processes: parametric design, generative design, and algorithmic design. Each one has a different method in the design process.

  • Parametric design employs rules and criteria to provide a design that can be tweaked with little effort.
  • Generative design uses algorithms to provide several potential solutions for analysis.
  • Algorithmic design constructs a model of a design using algorithms.

What are the Benefits?

Once a designer gets through the learning curve associated with using computational design methods, they will be able to create better solutions specific to their project without performing redundant tasks and thus improving productivity and reducing project costs and time.

One of the biggest benefits of computational design is that learning how to code isn’t necessary to take advantage of this tool. Because of this, a whole new world of customization opens up for designers and engineers. While it’s true that there’s no universal program to meet all of our needs, we can build our own systems that can make our software fit our unique projects.

Computational Design in Bridge Construction

The use of computational design techniques in the bridge construction industry is rapidly expanding. With this technology, contractors can put in site-specific details and get suggestions for how to improve operations to boost productivity and cut costs.

While tools become more advanced and powerful, we need to improve our processes to keep up, and computational design allows bridge engineers and contractors to do that.

Leading the Way at U.S. Bridge

U.S. Bridge uses the best-emerging technologies to create strong and reliable bridges quickly. Over the course of our 80+ year history, we’ve built a reputation known for our wide variety of prefabricated types and unique designs that meet your project’s specifications.

Our exclusive BridgeScope tool gives the power to customize a bridge and get a head start on their project. Contact us today for a quote or any other bridge inquiries.
 

U.S. Bridge takes on plenty of unique projects. However, one of our most distinct builds was the bridge along County Road 41 over Moxahala Creek in 2018. Muskingum County Engineering carried out site plans while U.S. Bridge designed, contracted, installed, and fabricated the bridge. This beautiful crossing in Newton Township spans 118 feet, 6 inches and the features of the bridge are what make it stand out amongst the rest.

3D-Modeling the Bridge over Moxahala Creek

Every bridge we build is first modeled in full 3D by our designers to guarantee a perfect shop-and-field-fitting of the steel members. Our bridge builders use Bridge Information Modeling (BrIM) to assign each component a unique name. This then automatically transfers the name and marking to the steel components by using stencil techniques.

In addition to this, BrIM also enables precise fabrication and just-in-time material supplies. This results in optimized solutions for all parties involved in the project and data that may be used for future preventative maintenance.

Exploring the Bridge Elements

When taking a look at the bridge in detail, several features stand out. Most notable is the 45° RF skew angle between the bridge’s longitudinal axis and the centerlines of the bearing, which lie along the abutments. The bridge’s high skew angle is pronounced and allows the Moxahala Creek to flow unobstructed.

Limiting Bridge Movement

Thermal movement can create enormous amounts of internal stress on the components of a bridge. However, using a polymer-modified asphalt expansion joint system (PMAEJS) limits the bridge’s thermal movement. Since there are very few locations where the temperature doesn’t fluctuate, thermal mobility is a factor that must be considered in every part of engineering. The PMAEJS was installed in accordance with ODOT Supplemental Specification 846.

Using Corrugated Steel Floor Planks

One final unique feature of this bridge is the use of corrugated steel floor planks with the addition of shear studs. These studs engage and fasten the concrete fill layer to the driving surface. As a result, the corrugated floor is bolted to the supporting stringer beams through the use of bolted steel clips in a staggered pattern every 9 inches and 18 inches on the side. 

Bolted clips are preferred over other steel floor attachment methods, such as welding, because they don’t damage the protective galvanized layer.

Bridges like the one spanning over Moxahala Creek add plenty of complexity to any project. However, as an industry-leading fabricator, it is our mission to provide excellent quality and engineering while keeping your project running smoothly.

Engineering Perfected with U.S. Bridge

With over 80 years of experience building bridges, we know what it takes to get the job done, no matter the challenge. Because of this, it’s our priority to understand each project and perform above and beyond expectations in order to provide each project with the attention and care it deserves.

Contact us today to start your next project, or check out our premier BridgeScope tool to get a head start on the process.

 

In 2020, U.S. Bridge answered the call when Miami County asked for a new bridge at Croft Mill Road. The existing 107-foot bridge was in dire need of a replacement. Apart from the 40-year-old bridge being well beyond the point of repair, the bridge faced a 25% reduced load capacity and a narrow width of 15′-6″.

Besides the typical challenges of hydraulic adequacy and road profile constraints, the crossing at Croft Mill Road crossing spans across Greenville Creek, which is part of Ohio’s State Scenic River. Because of this, the Croft Mill Road crossing has a history and setting that creates an attractive and noticeable structure which deemed it as a public investment. Therefore, it was our intention to keep it this way.

Widening and Galvanizing

When replacing the crossing at Croft Mill Road, we knew we had to modernize the bridge’s width. The width of the old structure was much too slim for contemporary standards. As a result, we increased the width from 15′-6″ to 28 feet.

Along with widening the path, the new bridge features hot-dipped galvanized steel trusses. Galvanization bonds zinc to steel, resulting in a much more rugged and reliable bridge. Galvanizing also eliminates corrosion for up to 100 years. We are so confident in our galvanizing process that we provide a 35-year warranty on our galvanized steel beam bridge.

Choosing the Right Bridge

Miami County considered several structure types for the project. Prestressed concrete box beams or I-beams were considered, but at the time of construction, manufacturing limits eliminated the possibility of utilizing prestressed concrete box beams.

In addition to manufacturing constraints, the depth of the beams required for a span length would greatly affect the structure’s waterway adequacy. Another option was to raise the roadway significantly, but either choice proved unfeasible. This is why Miami County decided to pursue the galvanized truss option for replacement.

Preserving the Property

Overall, the goal was not only to increase the span length over the former bridge but also to limit the impacts on Greenville Creek and the surrounding property on the north side of the bridge. When visiting the site today, it’s almost impossible to notice the changes to the property because of how well the bridge fits into the surrounding area. We are proud of this accomplishment but even more proud of keeping Ohio’s rich history alive and untarnished.

Build To Last with U.S. Bridge

U.S. Bridge has been building bridges that withstand time for over 80 years. It’s our guarantee to provide the highest level of quality steel in our bridges. Contact us today to get started on your next project, or get a headstart on the process using our exclusive BridgeScope tool today.

From emergency installations to ordinary bridge replacement, the stability and speed of prefabricated bridges offer communities in need a great opportunity. The Roberts Road Bridge gave U.S. Bridge the opportunity to replace an aging bridge with a brand new, wider bridge. In doing so, the Jackson County community is able to improve the traffic flow around the Little Salt Creek area.

Roberts Road Bridge Design

What was once a 78-foot single-span bridge with a pony truss and a timber deck structure spanning over Little Salt Creek is now a 90-foot span bridge with a steel truss span. The original bridge was built in 1960. Because of this, we were able to widen the aging roadway from 14 feet to 20 feet, allowing for two lanes of traffic. Our vision for the Roberts Road Bridge was not to just widen the bridge and roadway but also to make use of our twin monochord design. This unique feature combines the bottom chord’s gusset plates within its own chord elements. 

State-of-the-Art Materials and Methods

Because of the federal funding used, the Roberts Road Bridge deck construction had to follow ODOT standards. In addition, the railing system also had to follow ODOT standards, utilizing a twin-steel tubular railing mounted on posts anchored to the concrete slab. Expansion joints and bearings also followed ODOT standards, these help separate the superstructure from the substructure. The inclusion of rubber strip seals in steel extrusions, anchored to the back wall and deck with metalized embedment armor, provides for thermal expansion and contraction of the superstructure while steel laminated elastomeric bearing pads support the truss shoe members that support the bridge.

Galvanization

Before assembly and shipping, each element of the bridge’s truss and floor framing system underwent a dip in molten zinc, galvanizing the steel. As a result, rain and snow will not be able to get to the underlying steel. The result is a highly durable coating that has the adhesive strength seven times that of an organic paint coating. A galvanized coating also weathers at a slower rate and can provide corrosion protection for over 100 years, maintenance-free.

Project Information and Technical Specifications

The contractor responsible for construction was DGM, Inc. while we here at U.S. Bridge designed, fabricated and erected the bridge. OHM Advisors oversaw site plans and the installation cost $287,289 and the entire project cost $903,460, all funded by federal dollars. Bridge erection took approximately 5 days after the formwork for the deck slab began.

Build with U.S. Bridge

When you choose to build with U.S. Bridge, you choose to build with a team of engineers and construction experts that commit themselves to building the best-prefabricated bridges. This is why U.S. Bridge is the top choice for developers and contractors. Please contact us and start the building process today! Or get a quick scope with our Bridgescope tool.

Check out our work and see why U.S. Bridge is the best choice for your next project!

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In November of 2020, a pair of tropical storms, Iota and Eta, swept through Central America. These two storms were the most powerful storms to hit Central America in decades. So when a bridge collapsed in the rural city of Gualán, Zacapa, Guatemala, they knew they needed to find a sturdy replacement bridge and fast. That’s why they relied on a trusted brand to provide a high-quality Liberty Bridge.

Security After the Storms

Tropical storms Iota and Eta created flooding, mudflows, and dozens of catastrophic landslides across Central America. Many cities and infrastructures were destroyed, including the collapse of a bridge in the rural city of Gualán, Zacapa. The community needed a new bridge quickly to help with recovery and keep the communities connected. And we’re proud to say that they chose us to supply them with our durable and fast-installing Liberty Bridge.

Engineers from the Guatemalan Military installed the prefabricated bridge into place. The Ministry of Communications, Infrastructure, and Housing worked alongside the Municipality of Gualán to supply the necessary input to complete the project’s installation. The project’s success improved the lives of over 1,900 families within the community.

Not Just for Emergencies

Our Liberty Bridge is a truss-style design that is adaptable to many different elevations. Its rigorous durability and quick installation make it ideal for emergencies. However, just like our other bridges, its high-quality materials make the bridge long-lasting.

Our lightweight design gives you a wide range of flexibility but one of its major advantages is its prefabricated panels. These panels are easy to transport and easy, perfect for quick construction. Not to mention, the sleek design of the bridge offers an esthetically pleasing structure.

Four years ago, Hurricane Maria battered most of Puerto Rico. This led U.S. Bridge to supply five separate Liberty Bridges throughout the island as quickly as possible. The completion of Puerto Rico’s five Liberty Bridges took a mere six weeks. Because of this quick turnaround, residents and communities on the island were able to reconnect in record time.

Seeing those results, it’s no surprise that they relied on us and our materials in Guatemala.

High-Quality Steel Shipped Internationally

U.S. Bridge produces high-quality versatile bridge designs to meet the needs of any situation. Our bridges are proudly produced in Ohio and can be shipped out internationally to help any community in need. U.S. Bridge is grateful for the opportunity to bring communities closer.

As an AISC-recognized supplier, we guarantee the best quality of steel in every project. Contact us for a free quote or use our exclusive Bridgescope tool!

Although there are various manufacturing companies across the country, their products and services do not include what we like to call the U.S. Bridge difference. In fact, U.S. Bridge is the oldest company in the United States to be engaged exclusively in the manufacture and erection of structural steel bridges for secondary highways under the same family ownership and management. Our great skill and quality have earned us a reputation as construction leaders in our industry.

Our Services

With over 80 years of working with companies all over the world, we know how to work in various situations and budgets. Our services include project scoping, engineering, renderings, fabrication, shipping, erection, and more. We offer services and direct communication with every step of the project.

In addition, our manufacture of Advanced Bridges (ABR) is certified by the American Institute of Steel Construction (AISC). AISC certifications are familiar to ISO standards but are specifically directed to steel fabrication. So clients can feel confident that they are receiving the best quality materials.

In fact, our permanent galvanized bridges come closer to achieving the new United States federal guidelines for a 100-year service life than any other permanent steel or concrete bridge design.

Our Difference

After successfully fabricating and installing over 3,000 bridges in Ohio, we began to expand our business. In 1987 our services extended outside of Ohio and eventually all across the country. This was when we adopted the name U.S. Bridge to demonstrate our national sphere of operations. Today we are known as construction leaders and our bridges stand in nearly all states within the U.S. as well as in Canada, Central, and South America.

Three important factors contribute to our success. First, the founder of U.S. Bridge was an engineer. From the very beginning, the creation and design of U.S. Bridge were to fit all infrastructural needs with meticulous detail. And unlike many steel bridge manufacturers, we have always maintained our own staff of engineers. This provides a great advantage of trust, speed, and affordability by removing out the middleman.

Second, not only do we fabricate bridges around the world but we also assemble our local bridges with our own employees and equipment. Once the materials ship our team assists in its assembly taking away the stress and saving time for clients. The direct communication provided in each phase of the project is what attracts many clients.

Third, the combination of design, manufacture, and erection enables us to produce more innovations than any other bridge company. This unique arrangement allows us to offer a customizable experience for our clients.

In addition to our certified quality and great communication, we also present more affordable and rapid bridge assembly. We offer prefabricated bridges that allow the use of fewer trucks and small cranes. This saves clients money and essential project time. Not to mention, our group of small, multi-skilled bridge crews (typically 3-4 welders/carpenters/operators) can achieve steel assembly in less than 7 days.

Industry Leaders

Our speed and skills are recognized and often utilized in emergency situations. We often receive requests from companies or cities all around the world for our bride designs.

As construction leaders, we have the title of first in various innovations within our industry. A few years ago we produced one of the longest bridges in Africa– a one-kilometer long bridge in Mafia Island, Tanzania.

In addition, our projects include building the first:

  • 100% hot-dip galvanized truss bridge
  • domestic truss bridge with a 35-year warranty against corrosion
  • computer-designed steel truss bridge
  • panel bridge designed that meets all U.S. permanent specifications
  • all-welded Warren truss (without rivets)
  • truss to be fully assembled in a factory
  • all-welded deck components fully prepared in a factory

Our innovations and experience explain why we surpass our opposition.

Working with U.S. Bridge

When you choose U.S. Bridge, you’ll be working with bridge engineering and construction experts in every step.  With such a full-service solution, it’s easy to see why U.S. Bridge is often the top choice for developers and contractors. Contact us today to start the process or get a quick scope with our exclusive Bridgescope tool!

Once you’ve met our team and reviewed our work up close, it’ll be easy to see why U.S. Bridge is the right choice for your next project.

Have you ever driven over a bridge and wondered how old it was? In the United States alone there are more than 617,000 bridges, 12% of which are aged 80 years or older. But were all those bridges created at the same time or with the same method? What exactly is the typical lifespan of a bridge? And how many bridges are considered structurally deficient?

Contributing Elements to a Bridge’s Lifespan

Nowadays, bridges have become a natural part of everyday life. Your daily commute may even consist of traveling through a bridge or maybe two. Since they are vital to our economy and public safety, the government periodically mandates national bridge inspections to determine structurally deficient bridges.

Ultimately, there is no one number that fits the lifespan of all bridges across America. Each bridge has its own expected lifecycle but there are ways to estimate its lifespan. Generally, it’s believed that bridges are expected to function for 50-70 years however this is often not the case. Currently, only 42% of all bridges in the United States are at least 50 years old.

The lifespan of a bridge differs according to its design, construction, and location. Each component contributes either positively or negatively to the overall lifespan and structure of a bridge.

Materials

One of the most obvious factors that contribute to the lifespan and eventual structural deficits of a bridge is the material. In fact, both the concrete industry and the steel industry claim several advantages above the other for the Life Cycle Costs of a bridge.

Steel

Steel is a popular construction material due to its flexible and durable nature. The great thing about steel is that it is recyclable and still maintains its initial strength and integrity. Galvanized steel is even more durable plus it requires less upkeep.

Structural steel is a high-quality material that is readily available worldwide in certified grades and produced in various shapes and sizes. Currently, it is estimated that steel bridges have a lifespan of over 100 years. However, this number rapidly decreases as the bridge erodes or even with poor construction quality.

The deterioration of a bridge is created by a combination of several elements, for steel, it is often caused by corrosion, fatigue, stress corrosion, and damage from accidents.

Concrete

Another commonly utilized material is concrete. Concrete bridges are estimated to have a lifespan of over 100 years, again this number changes with daily wear and tear.

The causes of concrete deterioration are typically cracking, spalling, scaling, corrosion, and damage from accidents. In addition, cracks over reinforced steel allow water and chemicals to penetrate accelerating rusting which exerts great forces that pop the concrete.

Not to mention, extreme weather conditions, the presence of chlorides in de-icing salts, and cycles of freeze and thaw all contribute to the erosion of a bridge and its lifespan.

Timber

Timber, which is used for short-span and rural areas or pedestrian bridges is estimated to last only 20–30 years. This could be due to several reasons such as many engineers are less familiar with this material than their counterparts, or because there are fewer treatment options available for timber.

Nevertheless, the accurate range of which timber lasts is uncertain as there are very few data that exist that are based on actual performance data.

However, that doesn’t make timber a poor option. Timber is a lightweight material compared to concrete but still strong. This advantage plus low maintenance and repair costs make timber ideal in certain situations.

Plus studies suggest that timber is a durable option in highway bridge superstructures and that it can perform well for more than 70 years when properly pressure-treated with preservatives.

Location

The location of a bridge plays an instrumental part in its overall structural deficiency. Depending on the environment, it could accelerate the deterioration of the bridge.

Recently, there has been a slightly positive trend in addressing the maintenance of structurally deficient bridges. However, progress is not universal because states face different challenges when it comes to maintaining, repairing, and replacing bridges.

Urban

When it comes to urban locations, the major factor to watch out for is a higher traffic volume. The combination of a heavier load and volume further leads to the wear of the bridge. There are various ways for builders to slow this process down such as galvanization and other special treatments.

Rural

Unlike urban settings, rural bridges don’t have such a large volume of traffic. Unfortunately, it is because of this that rural bridges are typically not designed to withstand the growing numbers and weight of traffic and freight trucks. In actuality, rural bridges and transportation play a key role in our economy’s success and for rural communities.

However, more and more bridges in rural communities are experiencing rapid deterioration without the proper care and maintenance to last.

Coastal

Bridges that are located in coastal environments face unique challenges due to their location. Bridges in marine environments often experience corrosion-induced damage due to high sea salt and humidity. In addition, strength loss in the splash and the tidal zone is more common and significant than in the atmospheric zone.

An example of the distinct problems faced by coastal bridges is illustrated by the Morandi Bridge in Italy. In 2018, this cable-stayed bridge suddenly collapsed causing the death of 43 individuals. The collapse was reported as the fault of a weakened cable that deteriorated from corrosion. The degradation was caused by atmospheric agents and the proximity of the marine environment eroded the structure and integrity of the bridge.

Structural Deficient Bridges in America

Structurally deficient bridges are those that are in need of repair or maintenance due to the deterioration incurred throughout the bridge’s lifetime. Recently, 7.5% of highway bridges were designated structurally deficient. This is a striking improvement from the previous 12% record. In addition, the average age of America’s bridges is increasing to 44 years.

The plan is that the overall lifespan of a bridge should increase over time as more techniques, treatments, and designs are discovered in the future.

Build a Bridge that will Last Lifetimes with U.S. Bridge

Are you looking for an experienced industry leader company to assist with your building projects? Here at U.S. Bridge, we’ve built for different projects all across the globe; and we know that choosing the right material for your bridge takes a combination of experience, expertise, and skill.

To learn more about our bridge engineering and manufacturing, contact us for a quote or to answer any questions. Or start building your scope and bridge with our new interactive tool the Bridge Scope.

Nowadays, bridges have become commonplace in our modern society. They offer great solutions to problems such as carrying heavy loads across long distances or providing a safe route for pedestrians and vehicles. But have you ever wondered how bridges are built? Here’s a quick breakthrough of the main components of a bridge and how they function.

The Main Components

The Type of Superstructure

The main part of a bridge is its superstructure. The superstructure bears the weight of the load as it passes through the bridge. It comprises the deck slab, girders, truss, etc. The specific components vary based on the type of bridge and its materials such as concrete or steel.

Not only does the decking hold the load weight, but it also helps transmit the weight and pressure to the below substructures of the bridge.

The Type of Substructure

The substructure of a bridge is the component that supports the superstructure and distributes the load to the bridge footings and foundation. They consist of piers, abutments, wing walls all of which facilitate the process of transmitting the weight of the load to the earth.

Different Types of Bridges

Although there are various designs of a bridge the main components will always stay the same. The only difference is the pattern or direction in which the pressure is distributed. For example, here’s the difference between the beam and truss bridge.

Beam Bridge

A Beam bridge, sometimes called a stringer or girder bridge, is one of the most basic types of bridge. Its design consists of horizontal beams and vertical piers that typically include two or more spans with an abutment or pier at each end. Beam bridges can be constructed using wood, steel, or concrete and are built for short distances as their only support is from piers.

In this design, the load is compressed on the top of the bridge and then applied down the piers to the earth.

Truss Bridge

A truss bridge design involves interconnected triangles that distribute the weight over a wide space. This unique design allows the truss bridge to carry a heavier weight capacity with fewer materials. These lightweight and durable bridges can be utilized for both short and long distances.

Truss bridges function by transferring the weight of the load from a single point to a wider area. When the load is applied to the truss bridge the pressure is shared among the triangular designs for additional support and then redirected to the earth through the bridge’s substructure. 

Build with U.S. Bridge

At U.S. Bridge, we work with the highest quality materials and engineers when designing and building bridges. Not to mention, our bridges are well-made, easy to maintain, and available in a variety of design and support types.

With decades of experience and our team of dedicated experts, you can feel confident in trusting an industry leader to build your bridge. Contact us today for a free quote or use our exclusive Bridgescope tool!

Bridges play a key role in our lives by connecting our communities, promoting commerce travels, and contributing to our country’s economic development. But who designs these bridges and what does a bridge engineer do?

Bridge Engineers

Bridge Engineers are civil engineers responsible for designing and building bridges and other highway-related structures. Typical tasks for bridge engineers include designing and maintaining bridge structures, minimizing environmental impact, and supervising the fabrication process. As well as completing site investigations, data collection, identifying environmental risks, analyzing manufacturing processes, supervising construction, and more.

Although the exact duties of a bridge engineer may differ, it’s safe to say they’ll always play a critical role in any bridge construction project.

Designing and maintaining a bridge is no easy task. That’s why bridge engineers are required to have skills such as analytical thinking, leadership, supervisory skills, organization, and creativity. Not to mention, time management and budgeting skills which are essential for projects with restricted time or resources.

Bridge Engineering: It’s All About The Details

Meetings & Details

Naturally, the first part of any construction project is understanding the full scope. This meeting typically covers topics and details such as bridge series and styles, special enhancements or treatments, railing criteria, etc. This will help the bridge engineer to draw up some preliminary sketches of the bridge’s general framing plan, bridge geometry, and basic construction.

These designs help illustrate the bridge and prepare the project for its next step.

Digital Renderings

One of the most powerful tools for bridge engineers to utilize is technology. Bridge engineers will often use computers to create virtual models to assist in visualizing a project. This helps the team picture the visual impacts of the bridge to any given site as well as the aesthetic qualities. Our bridge engineers are able to model your proposed bridge over a digital terrain model or incorporate it into photos of your existing site.

This aspect is extremely useful, especially if a construction project requires models to help stakeholders buy-in or make a sale.

Final Process

Once a commitment has been made, the design process officially begins and a team is assigned. The project engineer analyzes the proposed bridge including the specified design loads and appropriate load factors, along with applying numerous code checks. Eventually, the bridge engineer begins to sketch the design details and information for the designer. These sketches convey all the information previously discussed and finalized.

The engineer will also markup the general notes and list the design assumptions and pertinent bridge data onto the title sheet.

Part of this process involves reviewing the design calculations and construction plans to verify the scope and specifications. Also checked is the plan content to ensure it reflects the engineer’s design intent and that no conflicts exist and that no omissions have occurred. The final step before submittal is usually the application of the Professional Engineer’s seal and signature.

Designed for Success at U.S. Bridge

At U.S. Bridge, we’ve been engineering and building bridges for over 80 years. Our engineers have the skills and experience to build bridges in many different styles and sizes to fit the needs of your project. Find out more about how U.S. Bridge has everything you need to make your project a success.

Contact us for a free quote or check our exclusive Bridge Scope tool to start building your project today.

At the start of any construction project, you have to ask what materials and method would best accomplish your goal. You’ve probably come across modular bridge construction and you’ve wondered what is it and should you consider it.

We’ve created a brief introduction to modular construction and its benefits to bridge design.

Modular Construction

Modular construction is any construction that is built in a controlled environment, typically a factory, and later installed on-site. The popularity of modular construction is increasingly rising due to its various advantages such as speed, flexibility, and customization.

Modular construction, sometimes known as prefabricated construction, is built with the same materials and similar methods as regular construction, but often comes with additional features unique to prefabrication. For example, since they are manufactured in a controlled environment modular construction has the advantage of ensured quality.

In addition, because it takes place simultaneously in a factory and on-site, modular construction can be completed in half the time of traditional construction. This rapid construction phase and versatility allow them to be used in various situations.

The combination of ensured quality, speed, and flexibility is why modular construction is often considered a durable and efficient option for builders.

The Benefits of Modular Bridges

Modular bridges are relatively modern and thus have many misconceptions. Despite popular belief, modular bridges do not require the use of already premade sections of limited sizing and options. The great thing about modular bridges is their customization and flexibility.

Every modular bridge is specifically designed custom to your project and design. This customization process makes it a preferred and sometimes even, required option for some bridge projects.

Not to mention, since most of the bridge is premade in a safe environment, the likelihood of weather delays or traffic disruption is significantly decreased. Additionally, it provides workers with safer and more comfortable working conditions. Thus modular bridges offer easy and effective project management. It’s an ideal option for any construction project with time or budget constraints.

Build your Next Bridge with U.S. Bridge

As an industry leader in bridge manufacturing and engineering, we’ve built solutions that can be utilized for any bridge project. We’ve developed Bridge Kits, a DIY solution for accelerated bridge construction that is engineered, designed, manufactured, and galvanized per AISC certifications.

We work with environmentally friendly materials to build strong, long-lasting bridges. Coupled with extensive experience, our team designs, and manufactures high-quality bridges custom to your project.

We’ve been engineering bridges for decades. If you’d like to know more about our Bridge Kits and accelerated bridge construction, please contact us for a free quote or use our exclusive bridge design tool Bridge Scope today.

Bridge Engineering

No one wants to make something twice. That’s why it’s so important to build it to perfection the first time, especially if it’s something time-consuming and expensive such as a bridge. With extensive experience in bridge engineering, bridge construction can be effortless and efficient.

At U.S. Bridge, we’ve been engineering and building bridges for over 80 years. Here’s how our bridge engineering process leads to seamless bridge construction.

The Bridge Engineering Process

Understanding the Problem

There are several different reasons to build a bridge. It could be to connect communities or provide a secure commerce route for heavy trucks. Regardless, the first step for the bridge design team is to understand why the bridge is being built. What problem is it meant to solve?

Once our team of engineers understands this, then they can move forward in designing a bridge that will properly address the reason for the bridge.

Understanding the problem also allows engineers to answer other questions such as where and how. It’s the first step to designing the final product.

Determining the Scope

After knowing more about the problem, our engineers create and compare different solutions to the problem. This includes analyzing what design would work best for the bridge and the pros and cons of each option. Then they also consider other factors like the weight of the materials and how the environment would affect the bridge.

We establish elements like the structural capacity, environmental impact, and constructibility of the bridge. In the final analysis, all of these factors and more are carefully considered to determine the scope of the bridge construction project.

The Actual Design Process

Once the scope of the project has been determined, then our engineers are able to begin the design process. Theories of solutions materialize as we calculate the details on elevation, span lengths, deck widths, vertical clearances, and bridge structure among other logistics.

In addition, we also create virtual models to enable our customers to visualize their project.

This is also the part where we create an initial budget analysis for our clients. These calculations are vital to the bridge design process. Budgets are how we ensure the project is ideal for the bridge owner’s needs before proceeding to the construction phase.

The Bridge Construction Process

Our various manufacturing options provide a solution for various projects and budgets. From timber bridges to prefabricated steel, we design, manufacture, and build them all. Following the decisions finalized during the design phase, we begin the construction process. Our bridge supplies are shipped worldwide and our team is present during construction to guarantee its execution.

With more than 250,000 sq ft of engineering and fabricating facilities including dedicated truss, painting, and post and tube centers, located on a 6-acre campus, we provide the highest level of quality bridge available.

Throughout the entire process, we work directly with our clients and communicate with all members of the project for an effortless process.

Perfect Bridge Engineering with U.S. Bridge

Our bridge engineering expertise makes the bridge construction and design process effortless. Save yourself time and money by partnering with an industry leader in steel bridge design and construction.

U.S. Bridge has completed more than 10,000 bridge projects and has experience working in more than 50 countries. Our team engineers and builds bridges of many different styles and sizes. All of our designs are custom-made to fit the needs of our customers.  Contact us today to receive your free quote!

How to Design a Bridge

Designing a bridge takes great engineering skills and attention to detail. Every component of the bridge design process is significant and greatly affects the rest of the project. Clearly, learning how to design a bridge can seem like an overwhelming process with lots to figure out.

However, U.S. Bridged developed a tool to simplify bridge design, even if you’ve never designed a bridge. It’s Bridge Scope, our exclusive virtual design tool to design a bridge.

Bridge Scope makes it easy to customize your bridge to the specifications you need, down to the last detail.

 

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How to Design a Bridge

When it comes to bridge design there are many components to consider. Where is the location of the bridge? Will there be heavy traffic and commercial trucks? Or is the location in a rural area?

The environment and the purpose of the bridge will determine the type of materials and style of the bridge. In addition to the type and shape, the design of the deck and railing are important as well.

Engineers need to consider the weather and other environmental factors that contribute to corrosion. It may be difficult to choose the right materials and design that works best for your project without making a big dent in your budget. That’s why it’s important to build with a trusted company that will create a bridge that fits your needs.

Through the combination of our experience and knowledge, we’ve created a simple and time-efficient way for you to design your bridge: Bridge Scope.

Bridge Scope: A Bridge Design Tool

Our exclusive Bridge Scope tool allows you to design your bridge in just a few simple steps.

How to use Bridge Scope

  1. Select a bridge type from the drop-down menu. Then select a bridge-style that best fits your project. Each bridge type has specific styles available. For example, the styles available for truss bridges are Cambridge, Cambridge flat, Viking, and Seneca bridge.
  2. Next, choose the deck material. The material of the deck is dependent on the bridge type.
  3. Select the bridge railing. Decide if you require an independent rail attached to the deck or a W-Beam guide rail attached to the truss.
  4. Lastly, input the span length and width of your bridge project. Additionally, you can select a corrosion protective plan and pick a live load.

Shortly after submitting, you will receive a detailed PDF packet of your project’s design and specifications. You can then contact U.S. Bridge to proceed forward with your bridge and make any adjustments desired.

It’s as simple as that. In under five minutes, users will have created their preliminary bridge design with a trusted steel bridge builder.

Building with U.S. Bridge

Our team of engineering experts has been building bridges for decades. U.S. Bridge has completed more than 10,000 bridge projects and has experience working in more than 50 countries. Our team of engineering experts has been building bridges for decades of many different styles and designs.

All of our bridge designs are custom made for each client and their specific project. To find out more about our experienced team and excellent bridges, please contact U.S. Bridge today.

Marble Cliff

U.S. Bridge recently completed our construction of a steel bridge for the Marble Cliff development in Columbus, Ohio. The steel truss bridge serves as a centerpiece for the new mixed-use development just five miles from downtown Columbus.

The weathering steel truss bridge spans 80-feet, with a 28-foot clear roadway, and two eight-foot sidewalks for pedestrians.

Marble Cliff

The Marble Cliff Development

Since the fall of 2018, we’ve worked closely with the site’s developer Thrive Companies. Together, we determined that the new development required a signature entrance.

As with every project, we collaborated with the client to decide on the elements the bridge needed. It was without question that the development deserved an aesthetically-pleasing bridge entrance match the luxury of the ongoing development.

We presented many options and ultimately landed on a weathering steel truss bridge, which included railings and a concrete floor.

The development is located on former quarry land in Columbus, Ohio. The mixed-use development of 70 acres will contain 864 housing units and 80,500 square feet of office and retail space. Specifically, the new housing is targeting professionals and young adults.

In addition, the Marble Cliff development will incorporate linked waterways, including streams and ponds, for residents to enjoy. Thus, the bridge is accessible via the waterways that kayakers and canoers can use near the Scioto River.

Marble Cliff

The Bridge Construction Process

We discussed the bridge needs with the Marble Cliff development’s on-site land contractor, developer, and consultant. After discussions about the project scope, the developers put their trust in U.S. Bridge to engineer, design, manufacture, and construct the bridge.

Once the scope was determined, we proceeded with our design of the truss bridge. We reviewed the project details carefully to ensure it met the client’s specifications and maintained U.S. Bridge’s high-quality standards. After approval and construction of the abutments, our team installed the bridge, concrete floor, and necessary railing.

Through every step of the process, we worked with Thrive Companies to meet and exceed expectations.

Without delay, we completed the bridge project on time and on budget. We are pleased to be part of this bridge project that will serve the Columbus community for generations to come. Now that the bridge is in place, the former quarry can continue to move toward its completion.

Marble Cliff

A Team Effort by U.S. Bridge

Every part of our team at U.S. Bridge touched this project. From engineering and design to steel fabricators to the construction team, our team showed what great work we can do together.

We are glad to be a part of this redevelopment, located on 70 acres near the Scioto River. By and large, this project was a great success for the U.S. Bridge team.

To learn more about why we’re the leader in steel bridge construction, get in touch with us. We’re glad to answer any questions about your bridge construction project.

Truss Bridge

There are several timeless designs that have been used in bridge building for decades. However, there are few more iconic than the truss bridge. In the 1800s, America was the leader in truss bridge design, though older constructions used wood. The design is vintage Americana, but it’s become modernized.

Today, truss bridges are used as an effective bridge construction option. Although one thing has changed: steel is the primary component in new truss constructions. U.S. Bridge is a leader in building modern truss bridges that will last for decades to come.

Let’s discuss why we use steel truss bridge design for many of our new constructions.

Advantages of Steel Truss Bridges

  1. Strong load-bearing capacity
  2. Effective use of materials
  3. Affordable to construct
  4. Versatile and adaptable design
  5. Professional bridge engineering

Steel Truss Bridge

First, What is a Truss Bridge?

Truss bridges are formed with a structure of connected elements that form triangular structures to make up the bridge. Trusses are the triangles that connect to the top and bottom cord and two end posts.

The trusses make up reinforcement for the bridge that even the load-bearing across the structure. Furthermore, the truss dissipates the load through the structure so the middle of the beam experiences less compression and tension. As you will see later, there are several variations of the truss, but it starts with a top and bottom cord and a series of trusses.

1. Strong Load-Bearing Capacity

Even the earliest wood truss bridges were built to distribute weight evenly. With this intention in mind, bridges could be built for larger loads. Overall, this makes this bridge design a very strong and dependable option. With steel construction, truss bridges can take on the traffic of today.

2. Effective Use of Materials

What makes truss bridges relevant more today than ever is their effective use of materials. Keep in mind, less materials means easier construction and less money spent. Already, our bridge construction uses recycled steel that is lightweight and has been certified for Bridge Fabrication — Advanced (Major) by the AISC.

In fact, each piece is constructed with a definite purpose for truss bridge construction. This way, the construction and use of each steel piece are perfect for the bridge.

3. Affordable To Construct

Because of the simplicity of truss bridge designs, they are often a great fit for accelerated bridge construction. In order to improve construction time, each steel piece can be quickly pieced together.

If considering the full cost of material and labor, truss bridges save builders thousands of dollars. Not to mention the long-term savings from building a long-lasting, durable bridge from U.S. Bridge.

4. Versatile and Adaptable Design

While truss bridges are great for short spans, what makes them versatile is their ability to go long distances and still support large loads. With the polygonal design of the truss, it’s possible to cover long distances. Even at U.S. Bridge, we have several options to fit the bridge construction you’re looking for.

In particular, truss bridges can be needed in areas with extreme weather. Despite the harsh weather, with great structural engineering, our truss bridges are prepared to last even the worst storms for decades to come. When it comes to crossing a treacherous area, truss bridges can be built to keep communities connected.

5. Professional Bridge Engineering

While a truss bridge may seem simple, they are actually quite intricate and require complex engineering and design. Because the weight must be distributed away from the center beam, each truss must be optimally engineered to distribute the weight. Without attention to detail in the engineering design, the truss design will not be nearly as effective.

Bridges are very dynamic, but at U.S. Bridge, we can guarantee the highest-quality engineering that fits the environmental components of the build location.

The U.S. Bridge Steel Truss Bridge Designs

Several of our U.S. Bridge designs use steel trusses for optimal strength and durability. However, every truss bridge is different. Here are just a few of the truss constructions we’ve done in the past.

Pratt Truss — Liberty, Viking, Seneca, Voyager

Warren Truss — Cambridge, Cambridge Flat

Box Truss — Thru Truss

Experts in Truss Bridge Construction

When you invest in a U.S. Bridge, you can rest assured you’re investing in experts in truss bridges. We’ve been building long-lasting steel bridges for decades. We regard every detail of your bridge with a high level of attention and efficiency to ensure it’s high-quality.

If you’d like to know more about our bridge construction projects and have any questions about a project, please contact us today and get a free quote.

Rural Roads And Bridges

Rural roads and bridges are an essential component of the U.S. economy. They connect the country and support a network of product transportation that is vital to our nation. Despite its importance, America’s rural transportation network lacks the necessary funds for proper infrastructure maintenance

The design of rural bridges and highways is often suited for lower-weight vehicles. However, due to the growing numbers and weight of freight trucks this rural infrastructure is in danger of rapid deterioration. Increased government investment into rural roads and bridges would benefit the United States’ economy and keep communities safely connected.

Why are Rural Roads so Important?

America Counts Staff research shows that the United States rural regions consist of nearly 97 percent of America’s landmass, the majority of which are dedicated to farming. As a result, America’s rural regions transport a sustainable pipeline of food, energy, and other products that aid the entirety of the U.S. economy. 

Not only are the goods and services that these roads join vital, but the transportation network itself creates numerous job opportunities. Tourism is another beneficial aspect of rural transportation as rural roads provide access to tourist destinations such as national parks, outdoor recreational activities, and scenic vacations.  

Connecting the U.S. with Rural Roads

As shown, the significance of rural roads is instrumental in the support of America’s stability and food supply. However, the volume of rural transportation has the potential for improvement. This improvement would allow for further capacity for economic growth with the construction of additional roads. According to a study from TRIP, a National Transportation Research Group, 66 U.S. cities with a population of 50,000 or more do not have direct access to the Interstate Highway System

Rural transportation connectivity is indispensable for additional economic development and would provide a positive impact to rural residents. Due to the lack of connectivity, rural communities are affected by distance and limited access to medical facilities and emergency response services.

Safety Concerns on Rural Roads

As the number of jobs, population, and use of these rural highways increases, the roads are not able to meet the swell of demand. Many rural roads are two lanes and aren’t intended to carry the weight of heavy trucks or other vehicles. 

According to a study from TRIP, 13 percent of America’s rural roads have pavements in poor condition. Nearly one out of 12 of the nation’s rural bridges need rehabilitation, repair or replacement. In addition, the same study also found that the amount of traffic accidents in rural regions are nearly double than those in urban areas. 

Reasons that could attribute to these alarming numbers include narrow lanes, limited shoulders, sharp curves, and exposed hazards. These features are common in rural infrastructure and require funding to incorporate desirable safety qualities.

Challenges with Funding

An increase in funds is essential in order to enhance the reliability and safety of these rural roads, highways,and bridges. 

A United States Department of Transportation’s (USDOT) report shows that the nation’s annual expenditure for infrastructure should be increased by almost 28 percent. However, reaching this number will be challenging as the effects of COVID-19 reduces transportation revenue. 

The American Association of State Highway and Transportation Officials reports that state revenues are decreasing due to the pandemic. The reduction in vehicle usage triggers a decrease in gasoline tax, turnpike toll, vehicle rental, and sale tax collections, among others. As a result, states are revising their maintenance funding and road investments. 

Let’s Build Rural Infrastructure

Rural roads and bridges are essential to the U.S. economy and businesses everywhere. With a quality rural infrastructure system, communities and businesses can stay connected.

U.S. Bridge has been serving communities for more than 80 years, building bridges that withstand time. Our bridge experts will advise you on the best option for your bridge. Contact us today and let’s talk about how we can make your bridge project a long-lasting success.