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The City of Brentwood is working with the Missouri Department of Transportation (MoDOT) to update the roadway, improve pedestrian access and safety, and enhance the overall appearance of Manchester Road from Hanley Road to Bremerton Road.
Additionally, the Brentwood Bound plan would add a pedestrian tunnel at the Mary Avenue intersection, provide for more sidewalks and important ADA improvements, and upgrade traffic signals in the area, making it a much easier place for pedestrians to navigate.
The Brentwood Bound plan includes a 10-foot shared-use path along the south side of Manchester Road and a 5-foot shared-use path along the north side of Manchester Road.
To minimize the impact on traffic, MoDOT plans to complete most resurfacing overnight, with no more than two lanes closed at a time. All lanes are expected to remain open during most days of construction.
Sidewalk construction and the rebuilding of business entrances will also be coordinated to minimize impact, with crews working in either MoDOT’s right-of-way or on private property (in which the department has obtained an easement). Crews will make sure customers can access all businesses at all times.
A portion of the project will replace the bridge over Black Creek west of the Manchester Road and Hanley Road intersection. At this point, there will be roadway construction impacts; the exact impacts have not yet been determined.
The grade of the land at Mary Avenue and Manchester Road is too high of a slope to have a crossing at street level. The addition of the tunnel allows for better ADA (Americans with Disabilities Act) access and improves safety by allowing those using the trails and paths to cross under Manchester Road. It will also help the flow of traffic by not adding a street-level crossing. This design also provided access to additional grant funding for the project.
More than 70% of the $4.8 million tunnel is being funded through grants from MoDOT, Great Rivers Greenway and the East-West Gateway Council of Governments.
The option of burying the power lines was explored, but at an estimated cost of $13 million to $15 million it was deemed cost prohibitive during this phase of planning. In the past, developers have assisted with burying the utility lines during construction of new businesses. This will be the City’s goal with the future developments as well.
The planned pedestrian crossing locations and types, from east to west, along Manchester Road:
The tunnel will be designed to stay as dry as possible, through a combination of stormwater management, raingardens/bioswales and pervious pavers in the shoulder area of the tunnel. Stormwater management involves grading slopes to capture storm water runoff before it gets to the tunnel and redirecting it to the raingardens or to storm drains that pipe water under Manchester Road.