HPW- West Lake Houston Parkway Bridge Rehabilitation for Bents 25-28

West Lake Houston Parkway parallel bridge structures across San Jacinto River built in 1990/1992 with 32 spans, each 118 feet in length, totaling 3776 feet in length experienced significant scour during Hurricane Harvey. The riverbed at Westfork of San Jacinto River scoured significantly at Bents 25, 26, 27 and 28 because of heavy currents. This resulted in reduced foundation capacity where drilled shafts were significantly exposed. The four Bents (25- 28) at the southbound structure will be retrofitted with a cast-in-place tie beam and steel pipe piling to restore foundation capacity. Also, one existing expansion joint at Bent 25 and bearing pads will be replaced which are malfunctioning.

Division 01 -	General Requirements, Vehicular Access and Parking, Traffic Control, Temporary Barriers and Enclosures.
Division 03 -	Concrete, Concrete Reinforcing, Precast Structural Concrete.
Division 05 -	Metals, Structural Steel Framing, Structural Steel for Bridges, Steel Joist Framing, Steel Joist Girder Framing.
Division 07 -	Thermal and Moisture Protection, Expansion Control.
Division 09 -	Finishes, High-Performance Coatings.
Division 10 -	Specialties, Signage, Traffic Signage.
Division 26 -	Electrical, Exterior Lighting, Lighting Poles and Standards, Roadway Lighting.
Division 31 -	Earthwork, Embankments, Erosion and Sedimentation Controls, Slope Protection, Gabions, Riprap, Special Foundations and Load-Bearing Elements, Driven Piles.
Division 32 -	Exterior Improvements, Bases, Ballasts, and Paving, Flexible Paving, Rigid Paving, Fences and Gates, Retaining Walls.
Division 34 -	Transportation, Bridges.