Conservation · Efficiency · Geography · Performance · Resilience · Sustainable Communities · water quality · waterways

Assessing the Impact of a Development Project

points of reference for assessing the impact of a proposed development project

Water a buffer of native vegetation undisturbed within 100 feet of streams, wetlands or other aquatic resources. Rooftops, streets, parking lots and other impervious surfaces drain to bio-retention, infiltration or other highly effective storm water system. Project sewage is sent to a treatment plant and the pipes carrying the sewage do not overflow. The treatment plant has met pollution discharge limits for the last 3 years; If the project will be served by onsite sewage disposal, site soils should be rated for Septic Tank Absorption Fields in accordance with USDA Web Soil Survey.

coastal resiliencyTraffic Safety and Congestion getting through the nearest signalized intersections in one green cycle during rush hour conditions. Standing at each proposed new intersection location, verify visibility of approaching vehicles at the minimum, safe sight-distance formula: posted speed limit + 10 mph x 11 feet/mph. Example: 30 mph + 10 = 40 x 11 = 440 feet sight – distance. Trips generated by the project on neighborhood streets are below 2,000 vehicles per day.

Safe Streets and School Overcrowding for residential areas, can the additional students resulting from the project be accommodated without exceeding the capacity of affected schools. Sidewalks are adequate to allow students to safely walk or bike to school along the streets receiving traffic from the project.

Trees and Forests if the project must comply with tree canopy or forest conservation laws, are there requirements met onsite.

clustered homes maximize forest preservation

Broadway Main StreetBuffering and Screening of commercial and industrial projects from the view of adjacent residential homes. If the project obstructs natural views from existing homes, then the proposed landscaping must be sufficient to preserve views.

Property Values commercial or industrial structures be at least 300 feet from residential homes. If the project is commercial-industrial, can trucks reach the site without travelling on residential streets.

Air Quality if the project is a gas station, it must be at least 500 feet from homes, hospitals, schools, senior centers and day care facilities. The homes must be 500 feet from a highway with traffic volumes of 50,000 or more vehicles per day.

Fire and Emergency Medical Services the project must be within a four to eight-minute response time for fire and emergency medical services. In suburban-urban areas, water pressure must be sufficient to meet fire suppression needs.

Richmond Historic Canal WalkRecreation Areas for residential projects, a minimum of 10 acres of park or other recreation areas for every 1,000 residents is recommended. For suburban-urban residential projects, there should be a neighborhood park within a ¼ mile walking distance of the site.

Water Supply for projects served by wells, verify the likelihood that area wells fail or become contaminated. If the site is served by piped-public water, the project must not exceed the safe or sustainable yield.

Flooding all proposed structures must be outside the 100-year flood plain, with runoff managed to prevent an increase in floodwater elevations downstream of the site.

Historical-Archaeological Resources if a designated historic-archaeological resource is present on or near the site, the local historic society must ascertain that it is adequately protected. For buildings 50 years or older slated for demolition, the local historic society should be consulted about the need for protection.

Arezza Bot

 

 

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