This project consists of a comprehensive city-wide culvert assessment and prioritization, covering publicly owned conveyance culverts throughout all watersheds within the City of South Burlington

This project focused on inspection of existing storm drainage infrastructure and development of an asset management database of the assessed system.  Data and information generated by this effort could be used to create a stormwater infrastructure replacement plan.  Phase I was completed in FY21, Phase II in FY23,and Phase III in FY23.  Phase IV began in FY25 and was completed in FY26.  The findings will be used to schedule implementation of pipe repairs, lining, or replacement.

Appendix files for the VT 116 Patrick Brook Culvert Assessment Study.

This study analyzed the existing condition of three culverts in Hinesburg; 1) the Patrick Brook Culvert condition across VT 116, located 500 ft north of Commerce Street, 2) a culvert across VT 116 located just north of Buck Hill Road and 3) a culvert located under Buck Hill Road.  Assessments were conducted to determine the bank full width and ordinary high-water-mark of Patrick Brook and other drainage above and below the culvert. This project developed 10% level conceptual plan and cost estimate for each culvert location and provided basic verification of engineering feasibility and structure size based on the Hydraulic and Hydrology (H&H) analysis.

The Shelburne MS4 Stormwater Master Plan Appendices are available here.

The Town of Shelburne in collaboration with CCRPC developed a MS4 Stormwater Master Plan (SWMP) that would guide the Town's stormwater capital improvements over the next 14 years to meet the MS4 permit requirements by 2036.  This SWMP focused on the phosphorous and flow reduction requirements as estimated today.  Key findings from the Phosphorous Control Plan (PCP) developed in 2020 were presented throughout this SWMP to provide context for the remaining work required to meet the PCP target.  This study re-evaluated the Flow Restoration Plan (FRP) developed in 2017 to assess the feasibility of certain proposed practices, and to relate the total proposed flow reduction volume to updated estimates.

This stormwater and watershed assessment took place from July 2022 to June 2023 to study Allen Brook watershed’s current water quality conditions within the Town of Milton and to investigate where stormwater Best Management Practices (BMPs) can be prioritized to manage runoff from developed lands within the watershed. Representatives of Watershed Consulting met with representatives from the VT DEC, CCRPC, and the Town of Milton to discuss the timeline and goals of this assessment in July 2022. From discussion with key stakeholders, it is known that over the past fifteen years, numerous water quality, fluvial erosion, and biological community assessments have been conducted in this watershed to assess the health of Allen Brook. From these assessments, it is known that Allen Brook is at risk of impairment when measured by its chemical and biological health. This study builds off of a variety of previous assessments in order to understand the source of pollutants, such as nutrients, chloride, and sediment, that have contributed to the impairment of Allen Brook. This assessment successfully used these findings to target stormwater BMPs in key areas of concern that will effectively treat stormwater runoff before it discharges to Allen Brook and ultimately Malletts Bay.

The study evaluated stormwater drainage concerns within the Town Common area of Westford and existing storm drain under VT Route 128 that drains stormwater from the Village Common area to the Browns River.  The area at the existing outlet pipe is eroded and requires relocation due to a redevelopment project on the 1705 Rte 128 property.  This study developed conceptual plans for relocation of the storm drain under Route 128 and possible outlet treatments and stormwater best management practices for improving drainage in the Village Common area.

On behalf of Chittenden County Regional Planning Commission (CCRPC) and the City of Burlington (City), Stone Environmental, Inc. (Stone) completed in June 2022 a Right of Way Condition Inventory for Stormwater Management within Burlington Wards 2 and 3. A summary of the inventory and tasks completed are described below. Data from the project is in two web maps Soil Boring Status Map and BTV Soil and Utility ROW Assessment Map. See section 1. Introduction to click on embedded web links to these maps.

Tanglewood Drive, between Cindy Lane and Woodlawn Drive, is a relatively low-volume car-oriented street in the Town of Essex with no accommodations for bicycles and pedestrians. There is also recurring problems with the outlet to the closed drainage system that has resulted in significant erosion near the outlet adjacent to Fern Hollow Road. This study developed alternatives to address the stormwater issues and offer improvements for walking and biking. A preferred alternative was approved by the Essex Selectboard in September 2021.