Canals and streams (AHED HydroEdges) are the network of lines describing the map hydrography. The HydroEdge feature class was populated using the 1:24000 National Hydrography Dataset (NHD). There are two subtypes of HydroEdges: Flowline, which traces water movement, and Shoreline, which forms the interface between land and water where it is not defined by a waterbody polygon. HydroEdge geometry for primary and secondary and some local features has been edited for correctness using the District's aerial imagery. According to the Arc Hydro Model, the end points of HydroEdges are always covered by point features called HydroJunctions.

This line feature class identifies the extent and location of canals referenced in the Consumptive Use Chapter 40E-2, Florida Administrative Code (F.A.C.).https://www.flrules.org/gateway/ChapterHome.asp?Chapter=40E-2

The ridge and slough habitat is central to the Everglades landscape—both ecologically and literally—and the restoration of degraded ridge and slough features is a central goal of CERP. It is critical that we develop an understanding of the dynamics of ridge and slough landscapes under different water flow regimes in order to detect changes in these systems that may result from restoration activities. This study will build upon research supported by the Everglades National Park and will further develop and refine the methods necessary to monitor and detect change in water velocities and bulk water flow in ridge and slough landscapes. The objective of this work is to conduct flow studies that will measure velocity and water depths within at three Shark River Slough (SRS) sites that are expected to be affected by CERP in the near future. This information will be used to link local velocity and flow regimes to inflow structures and landscape scale sheet flow estimates.

The primary objective of this work is to conduct flow studies that will measure velocity and water depths at three Shark River Slough (SRS) sites. One site is located a few kilometers south of the future 2 mile Tamiami Bridge (just east of the L-67E canal). It is hypothesized that this location will experience substantially higher rates of water flow, deeper water, and possibly longer hydroperiods after removal of the Tamiami Trail levee. The second site is located at roughly the same distance from Tamiami Trail but its location is considerably east of the future bridge and levee removal and will serve as a “bridge reference site†. These sites were chosen to provide two simultaneous experimental designs for detecting change: 1) A traditional “experimental versus reference†statistical analysis, and; 2) a Before-After Control Impact (BACI) statistical analysis. The third site is further down SRS, southeast of the Shark Valley Tower. The measurements at this site will integrate the hydrologic and ecological effects of both the Tamiami Bridge levee removal and the existing S12 structures across a broad ridge and slough landscape

Canals and streams (AHED HydroEdges) are the network of lines describing the map hydrography. The HydroEdge feature class was populated using the 1:24000 National Hydrography Dataset (NHD). There are two subtypes of HydroEdges: Flowline, which traces water movement, and Shoreline, which forms the interface between land and water where it is not defined by a waterbody polygon. HydroEdge geometry imagery for primary and secondary features has been edited for correctness using the aerial imagery.

This polygon feature class defines the extent and type of vegetation in the Kissimmee River Floodplain circa 1973 to 1974. Vegetation data were compiled at a scale of 1:24,000 in 1980 from aerial photography acquired in 1973 and 1974. These data document river and floodplain conditions several years after its channelization (construction of the C-38 Canal) by the U.S. Army Corps of Engineers as part of the Central & Southern Project (C&SF Project). A detailed description of the project can be found in: Milleson, J., R. Goodrick, and J. Van Arman. 1980. Plant communities of the Kissimmee River Valley. Technical Publication 80-7, Published by: Resource Planning Department, South Florida Water Management District, West Palm Beach, FL.Plant Communities of the Kissimmee River Valley (1980)The objective of this project was to produce spatially and thematically accurate maps of the vegetation as depicted during 1972-1974 aerial images and to store data in a means that will allow immediate and future evaluation of vegetation communities. The primary purpose was to prepare a comprehensive and detailed map of the plant communities of the Kissimmee River floodplain after the river's channelization.Historically, the Kissimmee River meandered approximately 103 miles from Lake Kissimmee to Lake Okeechobee, through a 1-3 mile wide floodplain. The river and its flanking floodplain were comprised of a mosaic of wetland plant communities and supported a diverse group of waterfowl, wading birds, fish, and other wildlife (Toth 1993, Toth et al. 1995).For reference access the following documents:The Ecological Basis of the Kissimmee River Restoration PlanRestoration Ecology 1995Between 1962 and 1971, to prevent catastrophic flooding, the river was transformed into a 56 mile long, 30-foot-deep drainage canal that passed through 6 water control structures. The dam like structures created a series of 5 impoundments or pools that were held at stable levels to function as navigational steps between the two lakes and as reservoirs for the regulation of flow. Unintended impacts to the ecosystem included drainage of two-thirds of floodplain wetlands and drastic declines in wintering waterfowl, wading bird, and game fish populations as well as a general loss of wetland functions and values (Toth 1995).

The Waterbody feature class was populated from the USGS NHDinGeo 24K dataset. Primary and secondary Waterbody features, canals and lakes, have been edited to correct their geometries using the latest county aerial imagery. Boundaries for other waterbody subtypes such as marsh and lake boundaries are edited when needed. Lake boundaries in many areas of the district are being updated based on newest NHD data and Land Use data.Waterbodies are split into two separate features where structures are located. Waterbody has a Subtype that includes the following types: Lake, Lagoon/Bay, Canal Segment, Stream/River, Marsh and Estuary.