West 17th Street Intersection
The intersection of Arlington Road, 17th Street, and Monroe Street was upgraded to a one-lane roundabout with four legs. The upgrades were provided to enhance the capacity of the intersection for future increased traffic flow and to help mitigate a known flooding problem in the area. The project involved new asphalt pavement, curb and gutter, and storm sewer. Some challenges to the design of the project include building in an area with shallow bedrock, avoiding existing utility conflicts, and providing continuous access for pedestrian and bicycle traffic. The skewed alignment of the Arlington Road approach also required an innovative approach to the roundabout geometry. American Structurepoint provided survey, road design, environmental permitting, stormwater detention design, and right-of-way engineering services.
This roundabout project consists of converting a "K"-type intersection into a roundabout to provide greater safety and capacity of the intersection with future increases in traffic. The project will also help mitigate a known flooding problem in the area with the construction of a large detention pond. The project involves construction of four retaining walls, storm sewer, underdrains, new concrete and asphalt pavement, and curb and gutter, as well as decorative pavers and landscaping. Some challenges include installed underground infrastructure with shallow bedrock, avoiding existing utility conflicts, and providing a detour route around the project for the safety of pedestrian and bicycle traffic. Work is being performed for the city of Bloomington in conjunction with INDOT’s Seymour District. Some challenges to the project include installed underground infrastructure with shallow bedrock, avoiding existing utility conflicts, and providing a detour route around the project for the safety of pedestrian and bicycle traffic. Approximate construction costs are $3.2 million (Contract R-35641)
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