Montagneuse River

Before Replacement

After Replacement

The file history for this site was reviewed and a 2004 assessment report indicated that a replacement culvert would be impractical due to the potential for future streambed degradation. MPA inspected the active degradation potential at the crossing and at nearby sites. Upon review of the streambed, it appeared that the active degradation had stabilized, allowing a culvert to be a viable replacement option. By providing an SPCSP culvert as a replacement option opposed to a three span bridge, resulted in considerable cost savings to be achieved.

MPA tailored the culvert design to provide additional burial. By doing so, the highway gradeline was maintained and allowance was provided for any potential future channel degradation.

Roles and Responsibilities: Design, Tender Preparation and Management, Construction Supervision, Post Construction

Project Details

Location: Hines Creek, Alberta

Original Structure: 3 - 8.5 m long type "HC" concrete girder bridge.

Replacement Structure: 1 - 5540 mm diameter SPCSP x 39.63 m invert length culvert with full concrete end treatment.