Lake Pontchartrain I-10 Twin Spans Damage Assessment

Project Photos

Location: New Orleans, LA
Client: Louisiana Department of Transportation and Development (LDOTD)

Following Hurricane Katrina, the Louisiana DOTD selected Volkert to perform damage assessment inspections on the I-10 Twin Spans over Lake Pontchartrain (connecting New Orleans and Slidell, LA). Both the eastbound and westbound bridges were damaged, with spans in the water, shifted or missing.

The original bridges were severely damaged by the storm: the eastbound bridge had 38 spans in the water and 170 spans shifted. The westbound bridge had 26 spans in the water, 303 shifted, and a bent missing. The westbound approach was undermined. Major issues included corroded shear studs, broken barrier rails, and misalignment of spans.

Volkert was responsible for performing National Bridge Inspection Standards (NBIS) assessments and assisting with the completion of the final report on recommended repairs, an innovative plan that resulted in the bridges reopening ahead of schedule. Monthly under- and above-water inspections of the repaired bridge structure and temporary Acrow panels continued while the bridges were repaired and replaced. LADOTD officials declared the repaired, temporary Twin Spans “the most inspected bridge in America.”

Volkert also performed CEI services during the construction of the new I-10 Twin Span bridges which opened in September 2011, nearly a year ahead of schedule.

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Scope of Work: Bridge Inspection, Emergency Damage Assessment, Construction Engineering and Inspection, Civil Engineering, Temporary Bridge Design, Quality Control/Quality Assurance, Hurricane Resistant Design, Underwater Inspection