Butte La Rose Pontoon Bridge – removal and replacement

Location: St. Martin Parish    
Dates: January 2019 – May 2023

Huval and Associates was contracted to provide all necessary engineering required for developing plans for the replacement of the Herman Dupuis Rd. Pontoon Bridge. The pre-existing single-lane pontoon bridge was closed frequently due to high water levels and structural repairs as required.

Huval prepared Design and Construction Plans for a two lane 125 ft. unequal arm steel girder swing span with 145 ft. of concrete slab span approaches.

The control panel will be located on the structure to reduce construction cost by eliminating the need for a operator house.

The new bridge will better meet the needs of the community by increasing safety, traffic capacity, improving stopping sight distance, and eliminating closures due to water levels.

Construction is complete and the bridge was fully opened in May of 2023.




– Preliminary Planning
– Environmental Planning – Permitting
– Design Planning
– Traffic Management Planning
– Construction Planning and Support


– Structural Design

– Hydraulic Design

– Geotechnical Design

– Movable Bridge Design

Key Project Members

David Huval Sr. P.E. – Principal, Structural Design, Construction Support

Nick Helminger P.E. – Roadway Design

Reid Romero P.E. – Lead Structural Design

Lee Hupperich P.E. – Lead Mechanical and Electrical Design, Construction Support

Colby Guidry P.E. – Structural Design and Support


At Huval & Associates, we believe that our people are our future. We are always on the lookout for employees who share our passion, innovation and commitment to providing clients with expert design and engineering services. Interested parties should forward a CV with the form below for consideration.