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A CON/SPAN B-Series precast modular bridge road.

CON/SPAN® B-Series

Accelerated Bridge Construction World Leading Precast Modular Bridge. CON/SPAN’s innovative, economical design stands apart from any other system. Its distinctive arch action utilizes fast, set-in-place construction; and your design and installation is backed by extensive technical support.

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World Leading Precast Modular Bridge – Install in a Day, Lasts a Century

There are over 7,000 CON/SPAN B-Series installations since 1983. CON/SPAN Bridge Systems have been used by more state DOTs than any other system. Spans range from 12’ to 60’ with rises from 3’ to 14’ and each system comes complete with precast headwalls and wingwalls. Ideal for stream crossings and minimizing waterway disturbances, which means less permit exposure for you and your client. When a larger span-to-rise ratio is needed, CON/SPAN can be an extremely effective answer. Modular construction means simple and fast installations.

Benefits of the CON/SPAN B-Series System:

  • Buried Bridge Structure - Reduces maintenance costs and lowers life cycle costs as there are no bridge deck or joints at the deck/roadway interface.
  • Modular Bridge System - Rapid installation results in reduced overall project costs, delays and detours.
  • Designed “Site Specific” - Meets your site needs in full compliance with AASHTO and AREMA design standards for highway and railway use.
  • Full Scale Load Tested - Verified engineering design methodology.
  • Easy Site-Adaptability - Flexible layout options to fit within the right-of-way – curve the structure with a stream or adjust for vertical and horizontal clearance requirements.
  • Manufactured in controlled environment with standardized components - Manufacturing is fast and efficient allowing us to offer a high quality yet cost-effective bridge option.

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 new “Project Collaboration” feature. Share your project easily with anyone through the new project management page.

Contech Design Center

Technical information for this product is centrally located in the technical guides section.

View Technical Information
A culvert made from precast concrete.
Precast Structures for Culverts, Canals and Enclosures

Our CON/SPAN O-Series, B-Series and BEBO structures provide a total set-in-place construction solution for culverts and stream enclosures.

Precast Structures for Mining Portals, Rail Tunnels and Conveyor Enclosures

Our durable CON/SPAN and BEBO structures can meet heavy duty demands for industrial or mining applications. CON/SPAN and BEBO structures can be adapted for use in tunnel applications or improving mine entrances. The arch shape is also ideal for supporting aggregate piles and can be designed to accommodate site specific openings and equipment requirements. Underpasses and overpasses can be designed using Cooper E-80 loading, and these prefabricated systems allow for fast installation and easily accommodate staged construction methods for busy, active railroad tracks.

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The Contech Advantage

Agency/Regulatory Guidance

Our team is ready to provide you with expert advice and assistance on local regulatory requirements, resulting in faster approvals.

 

Solution Development

Our engineers can review your requirements, weigh all options, and recommend the optimal solution to integrate with your site designs.

Technical Expertise

Our engineers can assist by providing product specific engineering calculations such as hydraulics, buoyancy, foundation reactions, and unit sizing.

Cost Estimates

We can quickly provide engineer’s cost
estimates to assist with your solution
selection process.

Site Specific Drawings

Our engineers can provide site-specific drawings for proposals, project meetings, and submittals, helping you be more efficient with your time.

On-site Assistance

Contractors know time is money, so we provide preconstruction meetings, delivery coordination, and on-site installation support to ensure a timely, smooth installation.