This project includes completion of a Phase I and II engineering and corridor study of a 2.6 mile section of FAP Route 600 (IL-159) in Collinsville, IL, Madison County. The project consists of complete reconstruction of 2.5 miles of urban two-lane roadway to a four and five-lane section through the City.
Volkert and the Illinois Department of Transportation (IDOT) completed environmental studies, determined engineering needs, and utilized an intense public involvement process to determine a design alternative for the improvement. The purpose and need of improvements and the needs of the community were primary considerations. Maps and other appropriate visual aids were used to assist the public in better understanding the various alternatives that were developed and considered for the project.
The project included survey, public involvement, environmental services, alternative studies, preliminary and final plan and profile design, traffic management analysis, utility relocations, cost estimates, geometric studies, drainage report, accident analysis, and cost estimates, completion of a Traffic Management Analysis Report for traffic recommendations during construction, and a timing and signalization plan optimization for both temporary construction phasing and final design.
Environmental issues associated with this project include air and noise studies, water quality impacts, cultural resources, and special waste. Volkert assisted with the development of a Context Sensitive Solutions process and prepared an Environmental Class of Action Determination (ECAD) document for 400 feet east and west from the existing IL 159 pavement edge. The project consists of identifying and describing project elements including traffic congestion, safety, system linkage, social demands, economic development, and modal interrelationships. The proposed conceptual mitigation measures will be developed to reduce or alleviate impacts.
Volkert provided analysis of the build alternatives including analysis of the social, economic, historic, cultural, recreational, archaeological, noise, air, wetlands, floodplains, farmland and potential residential and business relocations as they relate to the project.
Coordination with the Collinsville planning and zoning authorities was conducted regarding existing and future land use. Field review of existing corridor features was conducted, and data was collected regarding past and present land usage as well as future land use plans, proposed developments, zoning guidelines and observed growth trends. Volkert’s services also included Section 106/Section 4(f) permitting, air and noise studies, water quality impacts, wetland impacts, upland vegetation/habitat studies, threatened and endangered species studies, and hazardous waste studies.