BIG R BRIDGE® ROLLED GIRDER BRIDGES
BIG R BRIDGE® ROLLED GIRDER BRIDGES
The Big R Bridge® rolled girder bridge was first developed and used in the late 19070s.
With many years of experience, Big R Bridge® can be rapidly installed, providing a cost-effective and proven solution for your vehicular and pedestrian bridge project.
Each structure is designed and fabricated to precise tolerances and to meet your required specifications.
INFORMATION
BRAND
Contech
PRODUCT TYPE
Bridge
LOADING
Designed for standard highway (AASHTO HL-93), any user specified loading, or any pedestrian loading
IDEAL FOR PERMANENT OR TEMPORARY APPLICATIONS
Big R rolled girder bridges are favored by municipalities, counties, transportation authorities and resource companies for stream crossings, road or rail overpasses, detour bridges and more.
STEEL ROLLED GIRDER BRIDGE SECTIONS
Modular sections are usually about 8' wide for shipping on standard trailers. Lengths can reach up to 80'. Lengths greater than 80' will have field-bolted girder splices. Custom lengths and widths are easily accommodated.
STRONG, LIGHTWEIGHT ROLLED GIRDER BRIDGES TO ACCELERATE YOUR PROJECT
Strong, yet lightweight, Big R Bridge® rolled girders ship and install quickly on any foundation type and without the need for poured concrete or specialized bridge construction companies. Modular Bridges can often be installed in just a few hours, using local crews and on-hand equipment – saving you time and money in the process.
COLLECTION
Big R
USE
Outdoor
COMPOSITE
Typical spans up to 120', or 150' with composite concrete deck
CONTRACTORS
Use local contractors or your own crew
INSTALLATION
Easy installation, even in rugged terrain
LANES
Single or multiple lanes
DESIGN
Modular or component designs
APPLICATIONS
Permanent or temporary applications
SHORTER BRIDGES
Shorter bridges can be installed with excavators or wheel loader
AROUND 8'
Around 8' wide modules are typical for Modular design
FEATURES AND BENEFITS
- Shorter road closure times
- No waiting for concrete to cure
- Bearing plates and pads included
- Excellent fish passage solutions
- Wide variety of bridge rails or curb systems available
OPTIONS
- Steel back wall systems
- Skewed ends to suit site
- Faux trusses or arches for aesthetic treatments
- Sidewalks and utility support capability
- Finish : Weathering, painted, galvanized, zinc or metalized steel finish options
- Deck : Steel bridge plank with any wearing surface (gravel, asphalt, wood, concrete or steel grating), cast-in-place or precast concrete, steel grating, or wood
THE CONTECH DESIGN CENTER
The Contech Design Center provides engineers unparalleled flexibility in the layout and configuration of a Contech Bridge System. Our latest release includes options previously unavailable in a free, web-based design tool:
- A 2D/3D design environment with high resolution graphics including BIM model output.
- The ability to import a PDF site plan and design a system to scale over the plan.
- Provide instant access to customized, project-specific drawings.
- Design multiple systems per project and save for future use.
- Digitally collaborate using the “Project Collaboration” feature. Share your project easily with anyone through the new project management page.
APPLICATIONS
BIG R ROLLED GIRDERS FOR FARM AND RANCH
Big R Rolled Girders are economical and easy to install for short crossings to home or ranch.
BIG R ROLLED GIRDERS FOR MINING AND INDUSTRIAL USAGE
Big R Rolled Girder design can handle heavier loads as seen in the mining and industrial markets.
BIG R ROLLED GIRDERS FOR CUSTOM USE
Big R Custom Rolled Girders have the versatility to meet your site needs specific to custom railings, covered bridges and aesthetics to match your site design.
BIG R ROLLED GIRDERS FOR FORESTRY
Big R Rolled Girder bridges have been widely used for over 50 years in the forestry market and continue to be the most cost-effective option for these remote crossings.
BIG R ROLLED GIRDERS FOR COUNTIES AND MUNICIPALITIES
Big R Rolled Girder bridges are an economical solutions for high and low traffic county road crossings and can easily be installed in a day. These prefabricated bridges reduce long term roadway shutdown and detours for County and Municipal roads.

















