WATER, WASTEWATER, AND DRAINAGE MAPPING
BELLOWS FALLS, VERMONT

In 2007, the Village of Bellows Falls, Vermont contracted Dufresne Group (DG) to complete GIS mapping for the Village’s utilities. These include water, wastewater, and storm drain.

As part of this work, DG used existing GIS information and vector maps produced by Mapmaker Photogrammetric Services (St. Albans, Vermont) to produce preliminary maps. Dufresne Group then verified all information using existing record drawings (where available) and the knowledge of local utility employees. The result of this effort will include GIS mapping that will allow users to graphically view the water, wastewater, and storm drain system, and also view information including, but not limited to:

• Water Mains (Size, Roughness Coefficient, Material of Construction, Installation Date)


• Water Valves


• Fire Hydrants


• Water Pump Stations (Pump Curves)


• Water Storage Tanks (Elevations, Controls, Volume)


• Wastewater Mains (Size, Installation Date, Material of Construction)


• Wastewater Manholes (Inverts)


• Wastewater Pump Station (Pump Curves)


• Storm Drain Mains (Size, Installation Date, Material of Construction)


• Storm Drain Manholes (Inverts)

Subsequent to the GIS mapping, Dufresne Group is to complete a calibrated water model. Calibration of the water model will require both fire flows and pipe roughness (C-Value) field work that will be completed by DG.

The end product is an interactive map of the utility components, as well as streets within the Village of Bellows Falls, surface water, railways, Town and Village boundaries, and building, integrated with an updated computer model of the water system, which allows the Village to produce multiple up-to-date infrastructure maps from a single project file.