SH 36 @ SH 35 Roadway Widening & Grade Separation in West Columbia, Brazoria County, TX
Client: Brazoria CountyThe project provides for a grade separation of SH 36 over SH 35 and reconstruction and widening of the existing 2-lane open ditch roadway to a 4-lane divided (continuous left turn lane) with concrete curb and gutter and storm sewer drainage from the north city limits of West Columbia to 2,000 ft. south of SH 35, a distance of approximately 1.1 miles. The project will include 14-foot outside lanes striped to provide shared use lanes, 5-foot sidewalks on both sides of the roadway, with new on and off ramps for both NB and SB traffic accessing the two state highways. Additionally, access was considered for major traffic generators including a nearby Wal-Mart and grocery store shopping center and traffic signals at SH 35. When completed, these roadway improvements will provide for a 4-lane roadway with continuous left turn lane, through the City of West Columbia.
IDCUS was the prime provider, and managed the work of a full service design team. Specific elements of work included topographic design surveys and ROW mapping, design of roadway with continuous left turn lane and shared use bike lanes, hydraulic analysis and design of storm drainage system with outfall into major drainage channel, driveway connections to adjacent property owners, preparations of storm water pollution prevention plans, traffic signal design, coordination with TxDOT, and preparation of PS&E for local letting. In addition, IDC coordinated utility relocations/adjustments with utility owners, and assisted with utility agreements.
IDCUS worked with the City of West Columbia, Brazoria County, and TxDOT to obtain permits. The IDCUS team assisted the County with ROW acquisition services, bid/award, and construction management and inspection services for the project.
