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Description: Land cover was mapped for Chittenden County at a 1-meter resolution using newly acquired lidar data, along with leaf off ortho imagery and leaf on imagery provided by the National Agriculture Imagery Program, along with existing ancilliary vector datasets provided by the state of Vermont. It is the first 1-meter resolution land-cover dataset for Chittenden County. This dataset represents a 900-fold increase in the size of output land-cover dataset that had previously been mapped for this region through the National Land Cover Database. Land cover was mapped using advanced object-based image analysis techniques using high-performance computing. A detailed accuracy assessment was carried out and the overall accuracy was 91%.Classes:1 - Deciduous Forest2 - Coniferous Forest3 - Herbaceous Forest4 - Shrub wetland5 - Water6 - Emergent wetland7 - Scrub/Shrub8 - Forest wetland9 - Crops10 - Pasture11 - Hay12 - Barren13 - Buildings14 - Roads/Railroads15 - Other Impervious
Service Item Id: 5bfb52e3cc994ddf91a1a565a7ba957c
Copyright Text: This project was selected for funding by the Lake Champlain Basin Program (LCBP) Steering Committee, and it has been supported directly by an agreement or sub-award issued by the New England Interstate Water Pollution Control Commission (NEIWPCC). NEIWPCC manages LCBP’s personnel, contracts, grants, and budget tasks through a partnership with the LCBP Steering Committee.
Although the information in this document may have been funded wholly or in part by the United States Environmental Protection Agency (under agreement CE982720010), the National Park Service, or by the International Great Lakes Fishery Commission, through their respective contracts to NEIWPCC, it has not undergone review by the Agency, Service, or Commission, and no official endorsement of the content of the document should be inferred. The viewpoints expressed here do not necessarily represent those of NEIWPCC, the LCBP, the USEPA, the NPS, or the GLFC, nor does mention of trade names, commercial products, or causes constitute endorsement or recommendation for use.
Job Code: 0992-003-008, Project Code: L-2017-036
Description: River corridors are delineated to provide for the least erosive meandering and floodplain geometry toward which a river will evolve over time. River corridor maps guide State actions to protect, restore, and maintain naturally stable meanders and riparian areas to minimize erosion hazards. Land within and immediately abutting a river corridor may be at higher risk to fluvial erosion during floods.
Service Item Id: 5bfb52e3cc994ddf91a1a565a7ba957c
Copyright Text: Vermont River Corridor and Floodplain Protection Program
VT Dept of Environmental Conservation, ANR
Description: Points that represent significant facility locations in a community. Examples include schools, government facilities, stadiums, casinos, and fire stations. In some cases, there may be multiple FacilitySitePoints for a single FacilitySite polygon. Additional information about each Facility can be organized in to seperate tables and related to these locations using the FacilityID key. The feature classification and type schema for the facility sites grew out of work with the Department of Homeland Security's HSIP Program and has evolved to support a diverse set of facilities inventoried for a variety of uses by a local government.
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Description: FLD_ZONE:A and AE are the Special Flood Hazard Areas (also referred to as 100 year flood)A = no base flood elevation determinedAE = base flood elevations determined0.2 PCT Annual Chance Flood Hazard (also referred to as 500 year flood)FLOODWAY:Floodway is the channel of stream plus any adjacent floodplain areas that must be kept free of encroachment so that the 1% annual chance flood can be carried without substantial increases in flood heights.
Description: A spatial representation of residential structures and number of dwelling units (all of which may be estimated or unconfirmed - see use limitations). This is an updated version of the 2012 Housing data which was originally developed in 2004. Previous updates have taken place in 2006, 2010 and 2012 to account for newly developed, renovated, or demolished housing structures. Unlike previous versions of this data, which were based almost entirely on Grand List and municipal parcel data, updates after 2012 attempt to associate dwelling unit counts with E911 site (Esite) locations (note: if Esite locations were not yet established at the time of the update, the point was manually placed in the centroid of the parcel). It also associates a year-built date for housing structures (see use limitations). Additionally, outdated fields with few or no values for housing points added during recent updates and duplicate fields have been removed to create a more streamlined dataset. These include HSING_SOURC and YRBUILT_ST (both of which denoted pre-2012 sources for DUCOUNT and YEAR_BUILT data, respectively), as well as GL_Addr, GLSPAN, Occupancy, Ownership (both of which referred to whether structure is rented or owned), and UPDATE_STA (a field to flag records for review).
Service Item Id: 5bfb52e3cc994ddf91a1a565a7ba957c
Copyright Text: Chittenden County Regional Planning Commission