Bartlett Brook Central Stormwater Gravel Wetland

Problem

Bartlett Brook is one of five stormwater impaired waterbodies in South Burlington. Portions of the stream located downstream of Pheasant Way, Quail Run, Keari Lane, and Bay Crest Drive have experienced significant erosion from uncontrolled stormwater runoff.

The City is in the process of designing and constructing projects with the potential to reduce flows in Bartlett Brook, restore the Brook to health, and satisfy requirements in the City’s MS4 permit. The Bartlett Brook Central (BBC) project was first identified over a decade ago as part of the Watershed Improvement Permits (WIPs) and has remained a high priority for the restoration of Bartlett Brook since that time.

Erosion in Bartlett Brook downstream of the project location.

Description

The proposed BBC project is located on City property to the west of Keari Lane and Quail Run. This
land currently contains a sewer line and walking trails that connect the adjacent neighborhood to the
Route 7 area. Through the final design process of the project, the City selected implementation of a stormwater gravel wetland in order to provide flow reduction to Bartlett Brook, as well as reduce phosphorous loading to Lake Champlain.

Benefit

The project will reduce the amount of sediment and nutrients flowing to Lake Champlain. In addition, the stormwater runoff is detained and slowly released to prevent erosion of streambanks and reduce the risk of downstream flooding.

Best Management Practices

Stormwater Gravel Wetland and Hydrodynamic Swirl Separators

Timeline

The City of South Burlington is currently requesting bids for the construction of the Bartlett Brook Central Stormwater Improvement Project as described in the Contract Documents. Project work generally includes the construction of a gravel wetland and drainage system infrastructure, including earthwork, rip-rap, swirl separator, outlet structure, wetland plants, fencing, catch basins, collection system piping, paving, sidewalks, curbing, landscaping and other related items. Sealed bids will be received at South Burlington Public Works located at 104 Landfill Road, South Burlington, VT until 1:00 PM on May 8, 2017. There will be a non-mandatory pre-bid conference at 1:00 PM on April 20, 2017 at the project site (Keari Lane/Quail Run, South Burlington). Copies of the Contract Documents and Plans are available from Blueprints, Etc. (20 Farrell St, South Burlington, (802) 658-4503). All questions shall be directed to Tom DiPietro, Stormwater Superintendent: 104 Landfill Road, South Burlington, VT 05403, tdipietro@sburl.com, (802) 658-7961.

Funding Sources

Ecosystem Restoration Program, Stormwater Utility Fund.

Last Updated: 3/2017