Bridge H-2948 is a 435-foot long, 4-span Cast-In-Place Post-Tensioned (CIP P/T) concrete box girder bridge of uniform width with an intermediate straddle bent that carries the Southbound Collector/Distributor (C/D) Road 1 over Blue Diamond Road.

Sigma prepared all construction plans, specifications, and estimates. Sigma also provided construction support, reviewed shop drawings, and arranged for accelerated design reviews with NDOT personnel.