Essex, Vermont
On behalf of the Chittenden County Regional Planning Commission, D&K explored alternatives to improve the intersection of Route 117 and North Williston Road. In addition to traffic congestion, safety deficiencies, and bicycle/pedestrian mobility limitations, the area experiences repeated flooding and roadway over-topping between the Winooski River bridge and the Route 117 intersection.
Improvement options included signalization, signage, roadway realignment, and a roundabout. As it was determined that the area would flood repeatedly, easily operable gates with flashing lights were suggested for times when road closure becomes necessary. Services included:
Purpose and Need Statement
Right-of-way, utilities, and resource identification
Base mapping utilizing GIS
Topographic survey
Hydraulic condition and floodplain analysis
FEMA HEC-RAS modeling
Multimodal traffic forecasts
Public involvement meeting
Permitting (Act 250, CUD, and USACE)
Hydraulic and transportation alternatives/recommendations