steel bridges Archives

Naturally, everyone wants to use the best material available when building something that will last for decades. That’s why more people are choosing galvanized steel for construction. Steel is the best galvanized metal for construction, and there are many reasons why.

Galvanized steel has all of the advantages that steel construction already has, plus the added benefit of protection from the galvanization process. Today, we’ll breakdown some of the main reasons to use galvanized steel in bridge construction.

What is Galvanized Metal?

What exactly is a galvanized metal? Galvanization is a process that protects metal by submerging it in molten zinc, thus adding a protective layer. The first benefit of galvanized metal is its known attribute of preventing future corrosion and thus ensuring less future maintenance.

As such, in the long run, businesses and governments are saving money by keeping their steel galvanized and protected. In addition, the galvanization process is environmentally-friendly and resistant to weather conditions. It’s beneficial for long-term durability and versatility.

Repairing worn-out bridges is time-consuming, expensive, and a hassle. However, galvanizing metal before installing the bridge helps to avoid this issue, especially if the metal is steel.

The Best Galvanized Metal for Construction is Steel

Any metal can be used for galvanization, though iron and steel are the most common. However, for construction, the best material is steel. Galvanized steel construction comes with all the natural benefits of steel, plus the added advantages of a galvanized material.

Steel is an effective material used frequently in construction due to its affordability, durability, and sustainability.

Affordability: Steel provides builders some expense cuts for their project budget. Its lightweight nature means less use of heavyweight equipment and lifts. Additionally, builders save money on maintenance and repair due to steel’s long life span and durability.

Durability: Although steel isn’t as heavy as other materials, such as concrete, it by no means diminishes its strength. Lightweight steel proves time and time again that it can handle a multitude of weight. That’s why it is often used in construction for railroads, bridges, and other infrastructure.

Sustainability: Steel is one of the most recyclable materials in the world. Very often the materials used for steel construction will come from recycled steel. However, this does not make it any less durable. Recycled steel’s strength and resilience is equivalent to new steel products.

Rely on the Experts in Bridge Construction

In our decades of experience, we’ve built bridges in over 50 countries around the world. We design bridges with the highest quality steel, custom-built to fit your needs.

Not only are we leaders in bridge design, engineering, and manufacturing, but we also are on-site at every bridge construction to oversee the process. No middlemen, just long-lasting steel bridges.

U.S. Bridge’s team of dedicated experts ensures bridges are made to fit your custom needs and is engineered to last for decades. Contact us today or try out our exclusive bridge scope tool for a quick proposal!

March 8, 2021

What is Weathering Steel?

Perhaps you’re considering constructing a bridge and you’re coming across terms like weathering steel, galvanizing steel, or corten steel, but you aren’t entirely sure what it is. Here at U.S. Bridge, we’ve built vast arrays of bridges for different locations across the nation. So we’ve created a guide to help you decide if weathering steel is the right step for your building project. Learn all about weathering steel in this article.

What is Weathering Steel?

Many builders choose this material for its durable and ductile features. Weathering steel is a low-carbon metal that contains additional alloy elements, including nickel and copper, which provides the metal better strength and resilience to corrosion. In addition, it is more affordable than other substances such as galvanized steel. Of course, this material isn’t ideal for every project or location.

Things to consider for Weathering Steel

The Pros of Weathering

The most notable component of weathering steel is its ability to resist corrosion. For this reason, it is a popular choice for exposed steel bridges or buildings. Weathering steel undergoes a process known as useful corrosion. While rusting is a problematic and even dangerous occurrence with other steel structures, it actually protects the material from further deterioration. Rust will only form in the outer layer of the steel which will then turn into a protective barrier that aids the resistance of future corrosion.

Additionally, the material requires little maintenance which is not only beneficial for rural or limited access areas but it also saves money in the long run. In studies, weathering steel has lasted several decades with minimal maintenance. And since the repair tends to be less involved, these bridges cost less over their lifetime than those made with other materials.

As a bonus, these structures don’t need paint for either protection or aesthetic reasons. Many people find the rust patina of this material to be attractive on its own and it helps avoid Volatile Organic Compound (VOC) emissions from paint coatings.

The Cons of Weathering

Although weathering steel may sound ideal, there are a few factors that should be considered before construction. Certain weather and climate conditions can lead to issues with durability and corrosive resistance. For example, weathering steel should not be built in a high-chlorine environment.

In addition, it functions best with alternative wet and dry condition cycles. If the environment is continuously wet or damp such as submerged in water or buried under soil then it impedes the steel’s ability to effectively resist corrosion.

While many appreciate the aesthetic of its natural rust-like patina, it also creates an opportunity of staining nearby structures; so it’s best to keep it away from concrete or other easily-blemished materials.

Contact U.S. Bridge Today

Are you looking for a company to assist with your building projects? Here at U.S. Bridge we know that choosing the right material for your bridge takes a combination of experience, expertise, and skill. The goal is to ensure the final product is complete on time and it matches your exact specifications.

To learn more about our steel bridge engineering and manufacturing, contact us for a quote or to answer any questions. Or you can scope and start building the bridge on your own with our U.S. Bridge Project Scope.

October 10, 2020

Advantages of Steel Truss Bridge Construction

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

Strong load-bearing capacity
Effective use of materials
Affordable to construct
Versatile and adaptable design
Professional bridge engineering

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.

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.

September 10, 2020

Choosing the Right Bridge Decking System

Bridges are an essential part of transportation, but each has its own job. With the various bridge decking systems, it can be difficult to decide which material is the best for your bridge construction project.

The choice of bridge decking and flooring for your bridge is important to the aesthetics and functionality of the construction. U.S. Bridge is here to help you make these important decisions before your bridge construction.

Below, we detail each of U.S. Bridge’s bridge decking options for consideration.

Steel Bridge Decking

Steel decking systems provide many noteworthy advantages such as durability, efficiency and rapid construction. This bridge decking is versatile and prefabricated. With prefabrication, parts are built off-site then transported to the designated location.

Thus, as metal decks are lightweight in comparison to other materials such as concrete, it requires less substructural support thus saving money. Grid steel decking is categorized by whether it is “filled”, “partially-filled” or “unfilled” with concrete as a protective encasement.

In addition to economic benefits, the metal decking system has great environmental benefits. Steel is one of the most recyclable materials in construction. Unlike other materials, recycled steel does not degrade and is reused at the same level as newly manufactured steel.

Corrugated Steel Bridge Plank

This bridge decking system is used on beam or truss bridges. Each 3”-4.25” plank has specially formed flange that allows for proper overlapping. The planks are cut to match the bridge width and skew. Then, they are hot-dip galvanized after fabrication for long-lasting corrosion protection.

These planks are typically filled with asphalt paving or concrete to create a wearing surface for traffic. With proper paving details, this is a very economical, long-lasting bridge decking option.

Exodermic Deck

Exodermic bridge decking is a lightweight system that combines a poured structural concrete slab with characteristics of open grid steel decks. This system is substantially lighter than a typical steel bridge decking system. Thus, exodermic bridge decking is a great option for projects with weight limiting constraints, while still maintaining long-lasting strength.

Concrete Bridge Decking

As a local resource, concrete is one of the most common materials chosen for bridge construction. A concrete deck slab is often obtainable both precast or cast-in-place. A precast concrete deck is both a low cost and time efficient option with an accelerated construction timeline.

The concrete slab is reinforced with two layers of steel bars which are typically coated with epoxy for corrosion protection. Concrete is naturally durable and long-lasting which makes it a standard for many environments, such as bridges over saltwater. Its enduring nature allows concrete to withstand high temperatures and resist deterioration.

Precast Concrete Plank

Precast concrete plank decking is a very low-cost and quick construction option for accelerated bridge construction. These are designed to be installed in one day to open to traffic by the end of the second day.

The planks are sized to be lifted using light excavating equipment and attached to the steel superstructure. The precast concrete planks attach to the steel superstructure through headed studs and grout pockets formed in the plank. Quick setting, non-shrink grout can be mixed in batches on-site and poured easily.

Nail-Laminated Timber Floor

Timber deck systems are great for rural settings such as trails, forest roads. Along with rustic areas, they are great for areas with low traffic and limited weight capacity. Weather protection, heat resistance, and mold growth are all prevented by treating the timber.

Timber is lightweight and easy to work with. In addition, U.S. Bridge will supply the timber, nails, and attachment clips. Keep in mind that timber decks have a limited span range in comparison to other materials such as metal. However, the timber may remain exposed or it can be topped with asphalt paving.

Bridge Decking Done Right

See a bridge decking system that fits your construction? Or do you still have questions about the right decking option? Contact us or for more information on our bridges and services, or take a look at our detailed reports on our flooring options and assembly plans.

August 20, 2020

Benefits of Accelerated Bridge Construction and Bridge Kits

Bridge construction is essential to continue rapidly improving America’s infrastructure. With innovative building techniques and effective procedures, there are constantly new cost-effective ways to increase efficiency. That’s where the benefits of accelerated bridge construction (ABC) come into play.

Accelerated bridge construction is a complete shift in how bridges are planned by fully preparing materials to be installed at the bridge site. There are several benefits of accelerated bridge construction over traditional bridge construction — above all are safety, quality, social costs, and the environmental impact.

That’s why U.S. Bridge offers Bridge Kits as a solution for a quick construction time with the same high-quality durability our bridges are known for. Below, we explain the benefits of accelerated bridge construction and why it might be right for your next bridge project. Overall, these benefits reduce bridge construction costs by shortening project time.

Most Significant Benefits of Accelerated Bridge Construction

Here are some of the benefits of accelerated bridge construction:

Shortened bridge project delivery time
Reduce construction impact on traffic
Increase work-zone safety
Prefabricated components require less maintenance
Lower environmental impact

#1: Shortened bridge project delivery time

This is why it’s called accelerated bridge construction — it’s faster than traditional methods. However, it’s equally if not more effective than traditional building.

With precise construction management, prefabricating the bridge parts, and shipping all the parts to the job site, bridge construction time is reduced significantly. With proper planning, bridge parts can be easily installed on-site. This saves time and money throughout the process by completing the project as quickly as possible.

#2: Reduce construction impact on traffic

Highway and other roadway work zones are hazardous for both motorists and for workers. However, as the condition of America’s infrastructure continues to decline, there continues to be long closures to critical roads across the nation. Moreover, this causes delays for everyday drivers, emergency vehicles, and local businesses can suffer from altered nearby traffic patterns.

Ultimately, traffic is unavoidable for Americans, but it can be made slightly better with ABC. With faster construction times thanks to prefabricated parts, construction can move from start to finish in a more timely manner.

#3: Increase work-zone safety

With extended road and lane closures comes increased risk for traffic accidents involving motorists and workers. Each year, there are 2,000 fatal accidents in work zones. With prefabricated parts and a plan to easily construct the bridge, there is less time spent with changes in traffic patterns. Additionally, it’s beneficial for workers on site.

“Now we’re also seeing safety benefits,” Bala Sivakumar, resident ABC expert at HNTB, said to ConstructionDive.com. “It’s a lot safer to do an ABC project because [workers] are not next to traffic or 50 to 100 feet above ground tying rebar or trying to pour concrete.”

#4: Prefabricated components require less maintenance

Prefabricated bridge components are engineered and manufactured specifically for Bridge Kits — our ABC solution. Thus, these parts go through a thorough quality control process to ensure they are ready for on-site construction. While on-site work is held to a high-standard, prefabrication is done in a controlled environment and removed from environmental elements.

With ABC and a thoroughly managed process, we can build bridges that last even longer than traditional building styles.

#5: Lower environmental impact

Another plus to shorter construction time is the significantly reduced impact on the environment. With less time with heavy equipment on-site, the impact to the surrounding environment is significantly reduced. As a result, building accelerated bridge construction lends itself to environmentally-sensitive areas.

Let’s Piece it Together

U.S. Bridge proudly delivers on long-lasting bridge construction projects around the world. We regard every detail of your bridge with a high level of attention and efficiency to ensure it’s high-quality.

With our Bridge Kits, we make bridge installation easy for teams who have the labor and equipment but need manufacturing and engineering. Now, we’re delivering everything needed for bridge construction right to job sites globally.

If you’d like to know more about our Bridge Kits and accelerated bridge construction, please contact us today for a free quote.

July 30, 2020

Rural Roads and Bridges: Why They’re Important

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.

July 17, 2020

Types of Bridges U.S. Bridge Offers

Bridges are engineering marvels. Whether spanning great or small distances, steel bridges come in many different shapes, sizes and aesthetics. At U.S. Bridge, we have decades of bridge building experience and several types of bridges to choose from. With engineers experienced in design and construction, U.S. Bridge has produced some of the leading bridges in the country and around the world.

All of our bridges are custom-made to accomplish the task at hand. We listen and work to understand your project needs in order to ensure every detail of your bridge gets the attention it deserves. Below is an overview of various types of bridges that U.S. Bridge offers.

Cambridge Bridges

The Cambridge bridge is a Warren Truss girder bridge with a camelback design and beautiful geometry. The trusses each have a polygonal top chord, two diagonal members in each truss panel, and a vertical member at each interior bottom chord panel point. The Cambridge is an efficient use of steel, and is perfect for both rural and industrial settings.

Cambridge Flat Bridges

Similar to the Cambridge bridge design, this truss eliminates verticals at the top chord panel points. The Cambridge Flat bridge has a sturdy look and is ideal for all bridges over rail, water and roadway applications due to its shallow profile.

Liberty Bridges

The Liberty Bridge design is more adaptable than any other. These bridges are designed to be containerized and assembled into modules to make it easy to construct. The Liberty is perfect for easy and temporary installations, as it offers more flexibility than other bridge types. However, it’s also a preferred option for permanent installations.

When Hurricane Maria devastated Puerto Rico in 2017, U.S. Bridge provided five Liberty bridges to reconnect communities that were affected by the storm. Of all our types of bridges, our Liberty design is the best for emergency situations due to its ability to be quickly constructed.

Seneca Bridges

This Pratt Truss girder steel bridge is formed by creating an arch of its top curve. The Seneca design has vertical members at every panel point which shrinks the floor beams and minimizes or eliminates stringer beams. The steel design is lighter weight and more durable than similar concrete structures.

Additionally, innovative design can bring significant cost savings. Its all-bolted construction option allows for easy on-site construction. Lastly, this is a durable bridge that guarantees a life span of at least 100 years.

Thru Truss Bridges

Our Thru Truss bridge design adds a pleasing aesthetic to your bridge structure. U.S. Bridge uses the term “thru truss” to describe high or box truss bridges. If your bridge needs to span up to 300 feet, this is the design for you. Thru Truss bridges are designed specifically for longer spanning bridges. Due to upper lateral support bracing bars, these bridges have a high-span capability. You can rely on the structural integrity of our bridge to meet your long-term needs.

Thru Truss bridges reduces the need for intermediate piers. The kit will be shipped to the project site in lightweight manageable sections, though the pre-assembly is usually limited to attaching gusset plates to the chord members. Of our various types of bridges, this is the only design that can span up to 300 feet. Lastly, this bridge is available with asphalt, concrete or metal orthotropic deck with an anti-skid option.

Viking Bridges

This gorgeous bridge design is a modified version of a bow-string arch style configured from a Pratt Truss using vertical end posts. It shares similarities with the Seneca design, with vertical members at every panel point, which minimizes or eliminates stringer beams.

Depending on your needs, our independent and truss-mounted vehicular guardrail options allow you to attach the railing system to various sections of the superstructure. This bridge has the ability to span short or long distances to bring solutions for pedestrians, cyclists and cars.

Voyager Bridges

This depth Pratt Truss style bridge is perfect for driveways or other areas where light vehicle traffic is expected. This bridge style is configured using parallel chord members and vertical end posts. The Voyager design offers a broad range of distinct designs that are aesthetically pleasing and functional.

Cortez Bridges

The Cortez is perfect for short spans, but is very adaptable and versatile. The Cortez design is a simple span beam bridge that supports a concrete deck slab and stay-in-place forms. Also, it can be designed with a bridge plank and asphalt system. When members weight and dead loads are a concern, U.S. Bridge can help create solutions with prestressed concrete alternatives.

The Cortez design is easy to install without specialized equipment, as it’s available in custom lengths up to 80 feet. Like many of our bridges, you’ll have several finishes available. Lastly, our high-quality steel constructions are extremely durable and guarantee minimal to no maintenance.

Experts in Steel Bridges

U.S. Bridge has completed more than 10,000 bridge projects, and has experience working in more than 50 countries. Our team designs and builds steel bridge types of many different styles and designs, including those listed above. All of our bridges designs are custom made for our customers. We work directly with our customers during the entire process to find the best fit — manufacturers and distributors not required. Our family-owned business has been running and building strong for more than 80 years. Therefore, at U.S. Bridge, we take tremendous pride in our work.

To discover what type of steel bridge might best suit your needs, contact us today for a free assessment and quote. We look forward to designing and building your next bridge.

March 27, 2020

Liberty Series Bridge Project in Peru

With more than 80 years of experience, U.S. Bridge has provided countless bridges to multiple communities around the world. One of which is in a remote area in Peru. The Liberty Series bridge project in Peru required a bridge that met two requirements: to be quickly deployable and can adjust to different lengths. U.S. Bridge Liberty Series Modular Panel Bridge was the perfect solution to help bridge the gap in this community.

U.S. Bridge Provides a Solution

Odebrecht, one of the largest construction companies in the world, is responsible for maintaining 955 km of major highways in Peru. Also, part of their responsibilities often require consulting on the necessity for bridges and bridge replacement. And that is exactly what they needed in Peru, a bridge replacement with specific requirements.

Thus, they turned to U.S. Bridge for this bridge replacement. Odebrecht was looking for a bridge that in the event of an emergency could be quickly deployable and could adjust to different lengths. Additionally, these bridges needed to have the structural integrity and flexibility to be temporary (8-10 months) or permanent.

This dual requirement meant that other “panel bridge” companies were not eligible to provide bridges that met Odebrecht’s needs. Also, typical panel bridges could not be left in place permanently without requiring very frequent and expensive maintenance.

Liberty Series Modular Panel Bridge

As the largest fabricator of steel truss bridges, U.S. Bridge had the perfect bridge solution. U.S. Bridge possesses not only the in-house engineering knowledge and capabilities to provide consultation services, but also the fabricating experience and product line to meet the customer’s requirements.

After visiting U.S. Bridge’s engineering and fabricating campus in Cambridge, Ohio, Odebrecht placed their initial order. This order was for a 55 m long x 3.66 m wide Liberty Series Modular Panel Bridge. The Liberty Series met all the criteria for the dual usage requirement as well as being capable of being launched or installed by crane. Ideal for Odebrecht, the Liberty Series modular panel bridge system was designed to adjust to different lengths by simply adding or removing existing panels.

According to Alberto Marotorelli, Vice President of Odebrecht,

“We like the professionalism exhibited by U.S. Bridge throughout the project as well as the exemplary level of services provided. The assembly and installation procedures were of the highest quality and better than anything we had seen from others in the past. They provided outstanding on-site installation supervision from a USB professional who has installed more than 500 bridges himself.”

U.S. Bridge Global Operations

U.S. Bridge has completed thousands of projects in more than 50 countries. Our global operations has the mission to provide the best bridges at a fast rate. Contact us today to get more information on our bridges.

February 11, 2019

Historical Rehabs: Restoring Historic Bridges of Ohio

There is something special about historical bridges. Their beauty not only tells a story of the place, but also evokes curiosity about their architecture and history. There are many historic bridges throughout Ohio. However, a lot of them are structurally deficient (SD) or functionally obsolete (FO) and have been closed. At U.S. Bridge, Historic Bridge Rehabilitation is an art performed by experienced, talented bridge craftsmen. Read on to learn how we restore those incredible pieces of history by giving them new life.

Historic Bridge Rehabilitation

Many communities are defined by their bridge. So, shouldn’t they retain that character? Just because your steel truss bridge is not in compliance with your current live load requirements or is SD / FO doesn’t necessarily mean that the bridge needs to be replaced. If you can, why not restore what you have? Every year, we rehabilitate steel truss bridges that were fabricated and installed from as far back as the early 1900’s. It’s like making the old, new again.

U.S. Bridge has the special capabilities needed to deconstruct, restore, and reconstruct historic bridges and give them a new beginning. By replacing the decaying structure with newer and stronger steel, these bridges are guaranteed to last longer.

U.S. Bridge Steel Truss Bridge Rehabilitation

It is the experience and expertise that one gains after being in business for more than 75 Years. Our bridge craftsmen can deconstruct, rehabilitate and reconstruct your old steel truss bridge to make it look new again and up to today’s standards. Steel Truss Bridge Rehabilitation from U.S. Bridge can contribute to the conservation of a town’s history, while ensuring safety. Contact us today to learn more about bridge rehabilitation.

January 10, 2019

Mafia Island Bridge Project – Mafia Island – Tanzania

Located in the Indian Ocean just 20 miles from mainland Tanzania, Mafia Island is part of the Tanzanian Zanzibar Archipelago. With a population of just over 40,000, you could say this is a small island, yet it offers remarkable experiences to those who visit it. The economy of the island heavily relies on fishing, subsistence agriculture, and a recent growth in the tourism industry. And to keep these afloat, the island needs access to shipment of goods.

Cambridge Flat, A Bridge Solution

Mafia Island offers gorgeous islets, outstanding diving, snorkeling, historical sites, and a natural, untainted culture. In 1995, almost half of the Mafia Island coastline was designated as a marine park by the Tanzanian government. This initiative is to protect the island and its marine life. The 510 square-mile marine park is home to over 400 species of fish and 50 types of coral. However, there was a major challenge that the Mafia Island residents faced. The daily cycle of high and low tides was a significant deterrent to receiving and shipping local goods. During low tide, the coastline retreats a kilometer, thus, prohibiting supply boats and other large shipments from offloading. As a result, the residents had to walk out as far as they could into the Indian Ocean to physically bring shipments back to the island.

While supply boats could unload during high tide, they had to carefully accomplish this task. These boats had to avoid getting caught in the receding tide and not be beached when unloading. So, the engineers at U.S. Bridge were versed on these challenges and agreed to provide a custom bridge solution. This bridge project needed to not only meet the current needs of the customer but also provide options to accommodate future growth.

A Cambridge Flat for Mafians

To alleviate the challenges that were faced U.S. Bridge recommended a galvanized Cambridge Flat. The Cambridge Flat style bridge serves as a jetty to allow the offloading of freight and passengers to Mafia Island. The bridge totals 27 spans, stretching 1km (3,286’) long and 4.3m (14’) wide. It consists of 24 spans that are 40m (141’) with a width of almost 4.3m (14’), two wider transfer spans, and a platform at the end measuring 15m (49’) x 24m (79’). The all-bolted bridge has a load rating of HS-15, serving as a single vehicular lane with a wooden floor and guide rails.

Due to the single lane structure, U.S. Bridge recommended that 2 transfer spans, 15m x 8m, be incorporated into the bridge to allow oncoming cars and trucks to pass one another. And at the end of the bridge sits a 15m (49’) x 24m (79’) platform that was designed to facilitate the offloading of shipments. While the site was being prepared and the piers constructed, U.S. Bridge fabricated and shipped multiple spans to the project site in 54 containers during the first four months of the project. U.S. Bridge’s Technical Bridge Expert arrived on site during early construction to supervise the assembly of the bridge, train the installers, and clarify any issues that arose during this critical construction phase of the project.

U.S. Bridge Globally

Construction and installation of the Cambridge Flat bridge in Mafia Island went very smoothly with a completion date in the fall of 2012. Just over two years from the start of the project. This Cambridge Flat has improved shipping, primarily for the commercial fishermen of the island, resulting in Mafia Island becoming a major tourist hub in the Indian Ocean region. U.S. Bridge is proud to be a company that serves communities in the United States and globally. And to assist customers every step of the way. Contact us and get a quote for your project today!

January 4, 2019

Rio Abajo Bridge in Utuado, One Year After Hurricane Maria

Industry News

On September 20th, 2017, Hurricane Maria made landfall in Puerto Rico destroying everything in its path. The aftermath of this storm left communities disconnected from the rest of the island and with a lack of resources to perform daily activities. One of those communities was Utuado, whose bridge collapsed. U.S. Bridge quickly came to help providing a Liberty Bridge. Today we take a look to appreciate the benefits of the Rio Abajo bridge in Utuado. Also, we look at the progress that this community has made ever since.

Rio Abajo Bridge in Utuado

Hurricane Maria changed the life of Puerto Ricans with the devastation and damage it brought. Therefore, at U.S. Bridge we knew that we needed to do something to provide relief and help our neighbors. The hurricane left Utuado disconnected and isolated for approximately 60 days. So, when we learned that the Rio Abajo bridge had collapsed, there was no hesitation to fly to Puerto Rico and begin work.

With no bridge to allow the survivors to move and seek help, the community devised a zip line to receive goods from the other side of the river. This homemade zip line brought temporary relief to the survivors, as they were able to receive gas, food, medication, and other commodities. However, it was going to take more than just a zip line to bring full relief to Utuado.

Connecting Communities with Liberty Bridges

The construction of the Liberty Bridge helped bring Utuado back to normalcy. And survivors recognize this:

“After a couple of days we received aid from different federal as well as state entities, but what helped us the most was the construction of the metal bridge.”

The Liberty Bridge was the perfect solution for this emergency situation. With its adaptability to different elevations and quick assembly, we were able to provide swift relief to the community. And not only is this bridge fast to construct, it also makes for a great permanent bridge. Today the community of Utuado is back to normal life thanks to the Rio Abajo bridge. Also, Utuado was not the only community that received a Liberty Bridge, there were four other communities like San Lorenzo and Juana Diaz.

The U.S. Bridge Commitment

U.S. Bridge is committed to always build the best steel bridges for communities in the nation and globally. We are also proud of being part of the entities that provided aid to hurricane survivors in Puerto Rico. So, do not hesitate to contact us to begin your project today.

December 7, 2018

Hot-Dip Galvanized Steel vs. Weathering Steel: What’s The Right Choice?

Steel has long played a key role in American construction efforts. Not only is steel lighter in weight than many other building materials on the market, but it also earns points for durability, affordability, and environmental friendliness. Still, bridge builders may struggle with whether to use more traditional weathering steel or increasingly popular hot-dip galvanized steel. Read on to discover how these options stack up.

Benefits and Drawbacks of Weathering Steel

Long a favorite among bridge builders, weathering steel offers numerous advantages over other building types. Strong and attractive, this material rusts in a way that provides protection against the elements. Builders refer to this as “useful corrosion.”

Still, the news about weathering steel isn’t all positive. Progressively corroding, weathering steel can deteriorate faster if moisture is present. To compensate for this loss of mass and strength, builders may need to use thicker sections of steel from the start. Additionally, salt air and humidity can damage weathering steel, resulting in accelerated corrosion.

Benefits of Hot-Dipped Galvanized Steel

Formed by dipping bare steel in molten zinc, hot-dip galvanized steel is a popular choice in bridge construction. Featuring the strength of weathering steel, hot-dip galvanized steel offers additional benefits, too. Barrier and cathodic protection mean that this material resists corrosion. As a result, this option requires less long-term maintenance than weathering steel. Additionally, hot-dip galvanized steel maintains its structure despite exposure to UV rays, snow, water, and soil and is 100 percent recyclable.

Trust U.S. Bridge With All Your Building Needs

As a bridge building leader, U.S. Bridge brings more than 80 years of engineering and manufacturing expertise to the table. We’re passionate about constructing bridges that withstand time and the elements while making use of materials that are safe for the environment. Ready to learn more about our products and services? Call our steel bridge experts today or contact us online for info.

November 1, 2018

U.S. Bridge Assists in the Construction of the 41st St. Chicago Pedestrian Bridge

Industry News

USB Assists In The Construction Of The 41st St. Chicago Pedestrian Bridge

At U.S. Bridge, we pride ourselves on bringing a wide range of bridge projects to life across the globe. Our high-quality steel bridges are designed to withstand the test of time while providing safe passage for pedestrians and vehicles. To that end, we were thrilled to assist in the 41st Street Chicago Pedestrian Bridge, recently erected by S & J Construction.

What the Project Entailed

Selected from among numerous bridge fabricators across the nation, U.S. Bridge was chosen to provide the temporary bridge used for the erection of the new signature pedestrian bridge. The U.S. Bridge temporary bridge was incorporated into the project to maintain traffic of the metro rail line below, and to permit a continuous work environment all while ensuring the safety of the workers and the traveling public.

Because the components were fabricated ahead of time, construction of the U.S. Bridge temporary bridge occurred over a few brief hours, minimizing construction disturbances for both Lake Shore Drive and the railroad.

The new signature bridge is designed to echo the appearance of Olmsted’s original Chicago walkways. The bridge boasts double-curved arch mono trusses that provide structural rigidity while offering resistance against high winds. As a bonus, the bridge features energy-efficient lighting and low-glare illumination. The end result is a beautiful, sleek pedestrian bridge that adds interest to the urban landscape.

A Cambridge Flat Bridge Built to Last

A Warren Truss girder bridge, features a top chord with a polygonal shape. The design is also known as a camelback. Attractive and efficient, this steel bridge is ideal for both city and country locales. Builders can choose from one, two, and three-lane options with a width range between 12 and 44 feet.

Contact U.S. Bridge Today to Start Building Something Exceptional

A leading provider of public and private sector bridges around the globe, U.S. Bridge has more than 80 years of experience in the design and manufacture of quality steel bridges. We’re passionate about creating high-end, safe structures at prices that are affordable. To learn more about our bridge building services, call today or contact U.S. Bridge online for a quote.

October 19, 2018

U.S. Liberty Bridges: A Rock Solid Structure

The U.S. Liberty Bridge soars above the competition. With their rigidity and adaptability to various elevations, these bridges are designed to be containerized and quick to construct in the event of an emergency. Also, they are a preferred permanent bridge. After Hurricane Maria’s devastation in Puerto Rico, U.S. Bridge built Liberty Bridges in five communities across the island. U.S. Bridge’s Liberty Series Bridges are the ideal solution to any project.

Bolted Permanent Bridges Surpass Pinned Temporary Bridges

U.S. Liberty Bridges have numerous advantages, but one of the main reasons is their prefabricated panels. Each panel is designed with a bolting system that has an infinite lifespan. In addition, bolting assures resistance to fatigue, weakness, and overloads. This system increases the sustainability of the bridge as a whole and eliminates the need for maintenance. Contrarily, the incorporation of pins into alternative type structures leads to vibration and friction with each load, and over time, more maintenance and monitoring. With its customizable panel sizes, the U.S. Liberty Bridge also spans up to 200 feet. And its larger floor panels give it the ability to support one or multiple lanes of traffic. All these features make the Liberty Bridge the preferred choice for emergency situations.

Begin Your Project With U.S. Bridge

U.S. Bridge has over 80 years of history and experience in the engineering, manufacturing and installation of steel bridges. We help communities create safe and longer-lasting bridges globally. For more information about our bridges and services contact us today.

U.S. Liberty Bridges Infographic

October 5, 2018

Steel Bridges & Their Impact on the Environment

The United States has been relying on steel for generations, and with good reason. Lighter in weight than many building materials, steel is affordable and durable, making it a great option for constructing everything from buildings to bridges. However, at U.S. Bridge, we especially appreciate the environmental benefits of steel. Read on to learn about the big benefits associated with building bridges from steel.

Steel Is Recyclable

The environmental benefits of steel include the fact that the material can be recycled with ease. Because of steel’s unique metallurgic properties, it doesn’t degrade over time like other materials. So, the product can be melted down and recycled for other purposes, while adding less waste. In fact, steel is currently the most recycled material on Earth.

Steel Has Economic Benefits

Another reason that steel is a great building material — and an environmentally friendly one — is that it has economic benefits. Builders can put steel constructions and bridges together quickly and affordably because steel weighs less than other materials. The ability to use less expensive equipment and lifts means money is saved in the long run. Municipal governments and communities can then use these funds for other purposes, like environmental conservation.

Steel Is Durable

It’s hard to save money when you’re constantly having to repair the same buildings or bridges. One of the best reasons to use steel for these projects is that it lasts for decades. This means you won’t have to spend valuable taxpayer dollars replacing the same structures again and again. Additionally, steel is a strong material that’s unlikely to be damaged by inclement weather conditions like storms and hurricanes. Steel even holds up well in the event of an earthquake. Because steel components require less maintenance, you can save money on both supplies and labor. The fewer resources needed to maintain steel, the fewer resources required from the environment.

Learn More About Steel Environmental Benefits

At U.S. Bridge, we create a wide array of bridges for communities throughout the nation. Relying on over 80 years of experience in engineering and manufacturing bridges, we take care to ensure our products stand the test of time. To learn more about the environmental benefits of steel, or what we can do for you, call today or contact us online.

September 13, 2018

The Economic Benefits of Bridge Building

Most of us don’t notice much about the bridges and roads that connect our cities and states. However, we would certainly notice if we woke up one day and they weren’t there. Bridges play a crucial role in various aspects of modern life, enabling us to get to work or school and contributing to the country’s economic development. This, of course, is something the American Society of Civil Engineers knows well. Every four years, this all-important group releases a bridge report card, assessing how these structures are holding up. Read on to learn more about bridge economic impact and what we can do to protect these structures moving forward.

Aiding in Infrastructure

Bridge economic impact starts with the way they support the transport of people and goods. Along with allowing companies to ship materials, bridges enable consumers to travel to shops and malls and visit new cities as tourists. When a bridge goes down, the surrounding area experiences a halt in economic activity, as people can no longer purchase goods and services with the same ease.

Supporting the Local Economy

Bridges also support the local economy, thanks to wages paid to construction workers and repair crews. Even the most well-designed bridges require regular cleaning and maintenance. Bridge workers then give this money back to the local community by paying taxes and purchasing local goods and services.

Connecting Communities

Bridge economic impact issues go beyond simple cash flow. Bridges connect people in different communities, allowing them to interact for work or play. This capacity is especially essential for areas where one town has an abundance of raw materials and another has a labor force in need of work. In this way, both people and communities can support one another.

What’s to Come for Our Nation’s Bridges

In assessing the country’s bridges, the American Society of Civil Engineers determined that the average bridge age is rising. As result, the United States will need to spend $120 billion or more to complete the necessary repairs and get all the bridges up to code. That’s where companies like U.S. Bridge can help.

Contact Us for a Consultation

As a leader in bridge design and manufacture, U.S. Bridge helps communities create safe, longer-lasting bridges. Plus, we build many of our bridges using prefabricated panels and assemble them in modules to expedite construction. For more about our services, call today or contact us online.

August 20, 2018

Bridge Floor and Deck Construction

Those who aren’t familiar with bridge building might think of decks as parts of a ship or the area in the backyard where grills are kept. However, in the industry, we know “deck” is a term for the driving surface of a bridge. Whether constructed from concrete, wood, steel, or open grating, decks that form the driving surface of a bridge need to be strong enough for traffic to cross safely. At U.S. Bridge, we provide a full range of sustainable bridge floor and deck solutions to clients throughout the world. Read on to learn more about the types of decks we offer:

Concrete Deck Slab

When it comes to bridge floor and deck products, the concrete deck slab is one of the most popular. Typically between 7 and 9 inches thick, this deck has two layers of steel reinforcing bars to provide strength and durability.

Asphalt

For this deck type, corrugated steel planks, 3, 5 or 7 gauge, are attached to the stringers of the bridge and become a structural component of the structure.. By galvanizing these planks, the flooring is protected against corrosion. With an asphalt overlay, these types of decks provide a long-lasting, economical, driving surface.

Open Grid Steel Deck

If weight constraints are an issue, open grid steel decking is a wonderful option for a bridge floor. It is characterized by whether the grid is filled, or partially-filled with concrete. If concrete is included, a metal pan or form is included near the base or at mid-height of the grid to support the concrete while it cures.

Precast Concrete Panels

One of the most efficient deck types, precast concrete panels can be constructed quickly and easily. Designed and manufactured off site, these panels can be installed one day and driven over the next. Non-shrink grout is mixed and poured in batches on site.

Nail-Laminated Timber Bridge Floor

Ideal for more rustic locations around the country, these timber decks utilize pressure treated lumber to protect against the elements. Additionally, buyers can opt to cover the deck with asphalt if they choose.

Start Building Your Bridge Today

As a leader in bridge floor and bridge flooring solutions, U.S. Bridge engineers and manufactures steel bridges for a wide range of private and public organizations. You can trust us to create a safe, durable bridge that will stand the test of time. To learn more about what we do, call today or contact us for an online bridge consultation.

August 9, 2018

The U.S. Bridge Prefabricated Steel Bridge Process

U.S. Bridge prides itself on working with the latest engineering techniques and the most advanced materials. Incorporating prefabricated steel bridges into stable products has enabled the company to expand. Also, this allows immediate help in areas where traffic patterns demand a quick fix. Below is an overview of the U.S. Bridge prefabricated steel bridge process and why these bridges are such a game-changer for infrastructure.

Why Prefabricated?

Prefabricated steel bridges have transformed the bridge-building industry. They are a cost-effective solution to a critical need: reinforced and revamped bridges. Key features of these bridges are:

Easy Upkeep – All connections are bolted, eliminating pins that often require frequent maintenance. Galvanized steel is also a completely recyclable material and is abundantly available keeping costs down.
Easy Assembly – Fewer parts means putting the bridges together is a quicker process. Consequently, fewer parts significantly reduce the chance for on-site construction errors. This makes assembly quicker and increases quality assurance. For more information about accelerated bridge construction, click here.
Easy Disassembly – It is easy to disassemble prefabricated steel bridges, making it convenient to use as temporary or emergency structures.

Why U.S. Bridge?

These prefabricated bridges were first used in the 1930s. As an industry leader and trailblazer, U.S. Bridge has been building prefabricated steel bridges since 1936. As an AISC certified fabricator of Advanced Bridges with Fracture Critical and Sophisticated Paint Endorsements, U.S. Bridge has a proven and reliable fabricating and quality assurance process. U.S. Bridge’s Engineering to Fabricating interface program ensures that all design and fabricating details are transferred to computer controlled CNC automated equipment. This includes a CNC Plate Processor, Automated Beam Line, Saw and numerous Robotic Welders. And, this direct transfer ensures that the bridge you have approved is the exact same bridge that will be fabricated.

U.S. Bridge meets the ongoing needs of our customers with a commitment to providing the highest level of quality bridge solutions possible. Their goal is to continually achieve a “best practice approach” with everything they build. And, they have been doing it for more than 80 years.

For more information about U.S. Bridge and their Prefabricated Steel Bridge Process, please call +1 (888) 852-0094.

June 1, 2018

The Liberty Bridge: Connecting Communities In Puerto Rico