Truss
A Truss Bridge Can Easily Accommodate Dynamic Loads

Truss bridges are one of the oldest bridge types in America. Photo credit US Bridge
Truss bridges are one of the oldest bridge types in America. They are used for a variety of reasons, mainly because they can easily accommodate dynamic loads. For rural highways over streams or railroads, a steel truss bridge provides a viable solution. Because of the arrangement of floor framing members connecting into truss elements, the bridge’s structural depth can be minimized as compared to under-deck girder systems.
A truss bridge’s load-bearing superstructure is composed of a truss, a structure of connected elements usually forming triangular units. The connected elements (typically straight) may be stressed from tension, compression, or sometimes both in response to dynamic loads. A truss bridge is economical to construct because it uses materials efficiently. Truss bridge advantages include:
- Economical To Build: The materials to build a truss bridge are minimal, and every single bit is used very efficiently. The strength comes when these materials are formed to the triangles.
- Strong: The unique triangular design provides support for the entire bridge. This gives it great strength making it ideal for very high traffic and heavy load areas.
- Built In Difficult Places: These types of bridges can be built across small or long spans while maintaining their strength. Virtually anywhere that a bridge is needed, a truss bridge can do the job.
- Long Distance: A truss bridge can clear spans of up to 300’. Due to transverse bracing, these bridges have a high span capability.
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Truss
“Go for Galvanized Trusses” – Modern Steel Construction
In an article from Modern Steel Construction, discover nine reasons why a galvanized steel truss bridge was the best solution for a rural Ohio creek crossing and why those same reasons may apply to your next local road project.
Design
AREMA/NSBA Present Constructability and Fabrication Guidelines for Steel Railroad Bridges
The new AREMA/NSBA guideline outlines key considerations for railroad bridge design, including girders, trusses, floor systems, decks, walkways, bolting, corrosion protection, and construction practices.
Buried Bridge
On-Demand Steel Bridge Video Series: Learning By Example
A distinguished panel of 8 industry experts to present case studies that offer innovative and cost-effective examples of steel bridge replacement projects.
Case Study
Modular Bridge Reconnects Key Route After Culvert Collapse in Colorado
After rushing waters caused the collapse a culvert, Acrow installed a steel modular bridge to reopen traffic in only 2 weeks.
Case Study
Acrow’s Modular Steel Truss System Supports Rehabilitation of Historic Covered Bridge
Acrow designed and supplied a freestanding modular steel truss system to provide support for the restoration of a historic covered bridge in Québec.
Truss
Suspended Steel Truss Bridge Connects Continents, Generations
U.S. Bridge designed and erected a steel truss bridge, over a historic 190-year old existing structure, to allow traffic to use a key connector in Ohio.
Truss
Historic Steel Truss Bridge Rehabilitated, Placed Back In Service
Quality Bridge & Fab, Inc. fabricated the steel to rehabilitate a historic 146 year old bowstring truss bridge in Pennsylvania.
Truss
Steel Truss Bridge Preserves Crossing for Miami County
U.S. Bridge answered the call with a steel truss bridge when Miami County, Ohio required a replacement structure that would limit the impact to the surrounding property.
Truss
Steel Truss Bridge Reunites Community After Woolsey Fire Decimates Region
After the Woolsey fire burned down the Mulholland Highway bridge, U.S. Bridge stepped in to reunite the community with a new steel truss bridge.
Truss
U.S. Bridge Provides Signature Truss Bridge for Luxury Development
U.S. Bridge recently completed the construction of a weathering steel truss bridge for the Marble Cliff development in Columbus, Ohio.
Truss
Advantages of Steel Truss Bridge Construction
5 advantages of constructing steel truss bridges for both short and long span crossings.
Short Span Steel Bridges