Roads and Highways

EDSI was selected as the Prime Consultant to bring the St. Louis District of MoDOT’s existing roadway infrastructure into ADA compliance per their Federally mandated ADA Transition Plan goals. The project includes evaluating over 50 different routes for ADA compliancy related to sidewalks, curb ramps, cross walks, pedestrian signals, signage and striping. EDSI is responsible for utilizing a stream-lined design process to produce construction documents for the non-compliant existing facilities. Right-of-Way plans and descriptions are being developed for several hundred temporary and permanent easements. Additional support tasks include topographic and right-of-way surveys, utility coordination, minor drainage design, coordination with several municipalities, and cost estimating. This project is being segmented into 3 separate lettings in which EDSI is also providing construction inspection support.

EDSI, as the major subconsultant, was responsible for the survey, right-of-way, and design for over 2 miles of this 7-mile project on a major arterial within St. Louis County. Design elements consisted of a mill & overlay, new sidewalk and curb ramps, new and upgraded signalized intersections, ITS, drainage improvements, striping, signing, and ADA compliancy throughout the project limits. EDSI participated in the ADA field survey and assisted with the ADA documented inventory. EDSI also assisted with the RES documentation and public involvement. EDSI produced plans, specifications, job special provisions, and construction cost estimates in accordance with MoDOT standards. EDSI is currently providing construction phase services.

EDSI is the lead for Work Order #1 including the preparation of a complete set of Phase II plans for Resurfacing-Design Overlay and ADA Improvements. The work order covers the resurfacing of IL Route 13/153 from IL Route 4 to the Perry County Line. The total project length is about 7 miles. Services include the survey for ADA and curb ramp improvements, establishment of construction limits for Land Acquisition, guardrail analysis, drainage improvements, pavement markings, schedule of quantities, job special provisions and final PS&E submittal. If needed, BDE 3101 for ADA Statement of Maximum Extent Practicable will be completed and submitted.

EDSI, serving as a subconsultant, was responsible for delivering safety improvement plans for several state routes located in St. Charles and Franklin Counties. The project provided an innovative approach to optimizing the implementation of safety improvements defined by Crash Modification Factors for the greatest cost benefit ratio. Improvements consisted of High Friction Surface Treatment, guardrail, striping, rumble strips, and signing. EDSI deliverables included plans, calculations, quality control documents, and estimates. EDSI was proud to be part of such an innovative approach to Safety Design.