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Picardy Avenue Interchange
Client: City of Baton Rouge
This project is one of the largest projects ever undertaken by the City of Baton Rouge. The purpose of the project was to develop a frontage road system along I -10, between Bluebonnet Boulevard and Siegen Lane, to alleviate traffic congestion between these two major thoroughfares. This project included the addition of frontage roads and reconfiguration of Interstate ramps, which included an overpass of I-10 for the new interchange at Picardy. ABMB developed the concept for this project, performed feasibility studies and requested access point approval from FHWA. ABMB developed preliminary environmental and design studies. ABMB was also responsible for all traffic studies, surveys, right-of-way maps, public involvement, final roadway and bridge plans, signalization and coordination with city, state and federal agencies. ABMB also assisted LADOTD with construction administration and shop drawing review during construction of the project.
Project responsibilities by ABMB:
- Alignment and line and grade studies;
- Alignment selection;
- Interchange access approval from the FHWA;
- Topographic, utility and boundary surveys;
- Environmental clearance;
- Wetland mitigation;
- Floodplain mitigation;
- Preliminary and final design;
- Right-of-way mapping; and,
- Construction administration.
The bridge design aspects of the project consisted of interstate and frontage road crossings, as well as, significant MSE wall configurations due to tight right-of-way constraints. Bridge and wall components included:
- Five-span continuous, AASHTO Type II girder structure crossing Ward Creek requiring a curved and flaring deck and significant superelevation transition on-structure
- Three-span continuous AASHTO Type IV girder structure crossing I-10 with 110-foot spans, framed concrete bents and drilled shaft foundations
- Two 3-span continuous, steel plate girder units with 225' center spans, 175' end spans, standard abutments with wrap-around MSE walls and post-tensioned capbeams at the interior piers
- 215,000 square feet of mechanically stabilized earth (MSE) walls with maximum heights of 35 feet
- design of "light-weight" fill or "geo-pier" alternative for consolidation control.
Recently, the Picardy Avenue Interchange and I-10 Widening and Rehabilitation project was selected as a Winner of a 2007 Aon Build America Award, in the Highway – Renovation category.
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