Municipal Modular Bridges
Municipal Modular Bridges
Government organizations and municipalities turn to Northern Mat & Bridge (NMB) for permanent modular bridge solutions as they are a cost-effective replacement for bridges located on low-volume roads in rural areas.
Whether it’s single or double-lane bridges, our modular superstructures handle loads efficiently as they incorporate eight strings into each bridge and provide the lowest profile available in the market. This makes our bridges easier to transport, handle and install.
With our turnkey project solutions, we offer municipalities services above our expert advice and basic technical support including project management, engineering, construction and environmental approvals. Working alongside municipal teams we typically provide a hybrid model to support the quick and safe replacement of closed or unsafe bridges.
Municipal Modular Bridge Dimensions
- Single lane width: 15’ 4” or 20′
- Double lane width: 24’ 8”
- Length: 20’ – 60’
Municipal Modular Bridge Specifications
- CL-625 Ontario Truck Design – CHBDC CAN / CSA-S6-14
- 68 ton capacity
- Complies with 2016 MTO “Exceptions to the CHBDC-CSA S6-14 for Ontario”
- Bridge post pockets meet the requirements of “MTO TL-1 barrier system”
- Design meets the 2008 MNRF Crown land bridge management guidelines
Municipal Modular Access Bridge Features
With our extensive experience manufacturing, delivering, and installing bridges, we have developed key features specific to our municipal access bridges including:
Tapered Or Square Ends
Our access bridges are manufactured with a tapered or square end at no additional cost. Tapered-end bridges are excellent for use in locations where the bridge is installed on a substructure that does not have an upper approach crib leading to the deck.
Steel Checker Plate Decking
Access bridges are shipped complete with a 3/8″ pre-welded steel checker plate deck. Compared to a timber deck, a steel deck offers significant savings in maintenance including labour and wood, over the life cycle of the bridge.
High-Performance Coating And Anti-Slip Surface
To ensure proper adhesion of paint and non-slip coatings, all main stringer beams are cleaned and shot blasted in accordance with SSPC-SP 6 industry standards.
A high-performance red oxide primer is then applied to the entire structure and as part of the painting process, a dense grit product is added to prevent workers from slipping or falling during construction.
Decking Access Points And Weighted Cover Plates
Access points or “cutouts” in the surface of the decking allow installers to bolt both sections together. Weighted cover plates are then provided to ensure all openings are covered and the deck surface remains level and flush.
Pulling and Lifting Lugs
There are three pulling lugs pre-welded to the ends of each section for a total of twelve. These lugs are reinforced to provide safe lifting and pulling locations for easy bridge installation.
Tie-Downs and Tie-Down Guides
Modular bridge sections are linked by tie downs, strategically positioned along the centerline, and facilitated by tie-down guides. These guides, welded in place, ensure quick and precise alignment for connecting adjacent sections, with assembly bolts securing the junction.
Nut Locking Bars
Bridge bolts securely fasten to tie downs, with nut locking bars beneath ensuring a ‘snug + 1 turn’ position from the top of the deck. The alignment of tie downs and guides is precise, as modular bridge sections are fabricated side by side in the shop.
Structural Grade Bridge Assembly Bolts
Structural grade bridge assembly bolts are included with every bridge. It’s recommended to apply light oil or a product like “Never Seize” during installation for optimal long-term maintenance.
Bolted Post Pockets
Bolted post pockets, assembled in the field, enhance the performance and maintenance of guardrail installations. These pockets meet the anchoring requirements of the TL1 Barrier standard, as specified in the MTO 2016 “Exceptions To The Canadian Highway Bridge Design Code CSA S6-19, For Ontario.”
Our Network
Northern Mat & Bridge is proud to be Canada’s largest, fully integrated, turn-key access solutions company. More locations mean more available products with lower transportation costs!