Phase II Services – Tri-State Tollway, 95th Street to LaGrange Rd

 
SE3 is a subconsultant to HDR Engineering for the preparation of contract plans, specifications, special provisions, construction schedule, and cost estimates for the proposed roadway reconstruction and improvements on the Central Tri-State from 95^th Street to LaGrange Road. 

The contract includes five construction packages including the reconstruction of Archer Avenue and Archer Bridges over I-294, Advance Noise and Retaining Walls, Mainline Contracts for 95^th St to Plaza 39, Plaza 36 to Plaza 39, and Plaza 36 to LaGrange Road.

SE3 was responsible for the following scope of work:

• Civil design support in preparation of plans, specifications, and estimates
• Traffic Management Plan including traffic analysis and detour routes
• Barrier Warrant Analyses, QA Review
• Field reconnaissance, as required
• Participate in weekly and monthly team meetings and conference calls
• Erosion and Sediment control plans
• Drainage plans, drainage calculations, drainage specifications, and cost estimates for the Archer Avenue Ramps and Bridges
• Assist with review comments during final plan preparation