Description: This dataset contains point features representing fixed measuring devices (staff gauges) installed in stormwater ponds, channels, culverts, or other drainage structures to visually monitor water depth.
SERV_UNIT
(
type: esriFieldTypeString, alias: SERVICE UNIT, editable: true, nullable: true, length: 10, defaultValue: null, modelName: SERV_UNIT
, Coded Values:
[ESU: EAST SERVICE UNIT]
, [SSU: SOUTH SERVICE UNIT]
, [WSU: WEST SERVICE UNIT]
)
SERV_UNIT
(
type: esriFieldTypeString, alias: SERVICE UNIT, editable: true, nullable: true, length: 10, defaultValue: null, modelName: SERV_UNIT
, Coded Values:
[ESU: EAST SERVICE UNIT]
, [SSU: SOUTH SERVICE UNIT]
, [WSU: WEST SERVICE UNIT]
)
Description: This dataset features point-geometry of Hillsborough County stormwater infrastructure that collects discarged material that can be cleaned out as scheduled or needed.
SERV_UNIT
(
type: esriFieldTypeString, alias: SERVICE UNIT, editable: true, nullable: true, length: 10, defaultValue: null, modelName: SERV_UNIT
, Coded Values:
[ESU: EAST SERVICE UNIT]
, [SSU: SOUTH SERVICE UNIT]
, [WSU: WEST SERVICE UNIT]
)
Description: This dataset contains point features representing designated sites used to fulfill stormwater mitigation requirements associated with land development or infrastructure projects.
Description: Hillsborough County categorizes JUNCTIONS into 2 distinct subtypes.JUNCTION BOX: A vault where pipes connect to accommodate changes in pipe size or direction, or else to provide access to the stormwater system. They are not designed to allow the input of stormwater directly from the surface. The shape of the vault can be round or rectangular in nature. Whether or not the junction box has manhole access (this includes both the metal lids and when the entire top slab is removable).OTHER CONNECTION POINT: Fittings, cleanouts, reducers, etc. There is no enclosed structure associated with it. To be used when you need to change direction or otherwise need to indicate a different main or underdrain due to attribute changes. Typically, this type of asset will be digitized off of plans or at least in reference to plans as it is often something that is not visible from the ground. For instance, clean-outs would only apply to Other Connection Points, and would mostly be used for clean-outs found in conjunction for underdrains. Clean-outs provide access points for maintenance.
SERV_UNIT
(
type: esriFieldTypeString, alias: SERVICE UNIT, editable: true, nullable: true, length: 10, defaultValue: null, modelName: SERV_UNIT
, Coded Values:
[ESU: EAST SERVICE UNIT]
, [SSU: SOUTH SERVICE UNIT]
, [WSU: WEST SERVICE UNIT]
)
Description: Hillsborough County categorizes END TREATMENTS into 2 distinct subtypes:END TREATMENT: Any non-headwall description of a pipe opening that is not attached to a catch basin, junction, or control structure.HEADWALL: A head wall is a small retaining wall placed at the outlet of a stormwater pipe or culvert.
SERV_UNIT
(
type: esriFieldTypeString, alias: SERVICE UNIT, editable: true, nullable: true, length: 10, defaultValue: null, modelName: SERV_UNIT
, Coded Values:
[ESU: EAST SERVICE UNIT]
, [SSU: SOUTH SERVICE UNIT]
, [WSU: WEST SERVICE UNIT]
)
Description: A control structure is a water level control structure (often associated with a detention pond) that is engineered to discharge stormwater overflow at a controlled rate. The top of the control structure should be at the elevation of the collection asset’s high water design.Hillsborough County categorizes CONTROL STRUCTURES into 2 distinct subtypes.BOX: A control structure box is one what is composed of walls that connect to each other in such a way that it directs water from the high level water line down towards a pipe. It always will be connected to a pipe (where water flow is from the control box into the pipe). When they are found in a ditch, they may closely resemble a ditch bottom inlet, however the key point that distinguishes them is that they are built to only intake water at the designed high water level of the ditch, not just to drain the ditch itself.STAND-ALONE WEIR: A weir is a structure that is within a collection/conveyance stormwater asset and is designed to control its flow characteristics. It is typically a single wall or a series of parallel walls where the top edge is in line with the high water mark.
SERV_UNIT
(
type: esriFieldTypeString, alias: SERVICE UNIT, editable: true, nullable: true, length: 10, defaultValue: null, modelName: SERV_UNIT
, Coded Values:
[ESU: EAST SERVICE UNIT]
, [SSU: SOUTH SERVICE UNIT]
, [WSU: WEST SERVICE UNIT]
)
Description: Hillsborough County categorizes CATCH BASINS into 3 distinct subtypes:CURB: Is a catch basin that is integrated into a curb. Can have grating included in the Structure.DITCH BOTTOM: Is a catch basin in a sodded area such as a ditch, median or low area.GRATE TOP: Is a catch basin surrounded in concrete and covered with a grated lid. They are weight bearing and usually in a street, driveway or parking lot. They can also be located on a shoulder or in a valley curb. They always have a concrete rim.
SERV_UNIT
(
type: esriFieldTypeString, alias: SERVICE UNIT, editable: true, nullable: true, length: 10, defaultValue: null, modelName: SERV_UNIT
, Coded Values:
[ESU: EAST SERVICE UNIT]
, [SSU: SOUTH SERVICE UNIT]
, [WSU: WEST SERVICE UNIT]
)
Description: This dataset contains line features symbolizing assumed or non-surveyed connections between stormwater infrastructure elements such as inlets, manholes, outfalls, or ponds. These virtual lines help complete the logical flow of the stormwater system in cases where physical pipes were not documented,
Description: Underdrains are perforated pipes surrounded with gravel that are meant to aid in stormwater and/or percolation. They can be used for exfiltration or infiltration, however all of the pipes that Hillsborough County has inventoried thus far are considered mainly for infiltration. They can connect to various structures, and can also be fitted with Clean-outs. The asset inventory team typically inventories underdrains that run parallel to the roadway.
SERV_UNIT
(
type: esriFieldTypeString, alias: SERVICE UNIT, editable: true, nullable: true, length: 10, defaultValue: null, modelName: SERV_UNIT
, Coded Values:
[ESU: EAST SERVICE UNIT]
, [SSU: SOUTH SERVICE UNIT]
, [WSU: WEST SERVICE UNIT]
)
SERV_UNIT
(
type: esriFieldTypeString, alias: SERVICE UNIT, editable: true, nullable: true, length: 10, defaultValue: null, modelName: SERV_UNIT
, Coded Values:
[ESU: EAST SERVICE UNIT]
, [SSU: SOUTH SERVICE UNIT]
, [WSU: WEST SERVICE UNIT]
)
Description: CHANNEL: Channels are non-enclosed assets designed to have the ability to convey stormwater. Hillsborough County categorizes CHANNELS into 6 distinct subtypes.DITCH: Roadside Ditches are parallel to a roadway and is intended for collection of roadside drainage. They can be dry based on environmental conditions. Off system ditches are generally perpendicular to a roadway; they leave or are outside the typical right-of-way and function to convey water away from the right of way. They can be dry based on environmental conditions. A conveyance specifically designed to transmit water over and around a structure or dam. Grassed depressions that are shallower than ditches … generally no more than 6 inches in the centerline depth. They have been designed to resist soil erosion which may result from stormwater runoff. Flumes are generally steeply inclined, artificially lined conveyances. They may be designed with Energy Dissipaters.CANAL: Canals are designed more for conveyance than for collection. They usually have water in them. They tend to be larger and deeper. For Hillsborough County purposes, it is the Public Works Systems Planning Sections decision as to whether or not such an asset is designated as a type of ditch or as a canal.FLUME:Flumes are generally steeply inclined, artificially lined conveyances. They may be designed with Energy Dissipaters. OFF SYSTEM DITCH:Off system ditches are generally perpendicular to a roadway; they leave or are outside the typical right-of-way and function to convey water away from the right of way. They can be dry based on environmental conditions. SPILLWAY: A conveyance specifically designed to transmit water over and around a structure or dam. SWALE:Grassed depressions that are shallower than ditches … generally no more than 6 inches in the centerline depth. They have been designed to resist soil erosion which may result from stormwater runoff.
SERV_UNIT
(
type: esriFieldTypeString, alias: SERVICE UNIT, editable: true, nullable: true, length: 10, defaultValue: null, modelName: SERV_UNIT
, Coded Values:
[ESU: EAST SERVICE UNIT]
, [SSU: SOUTH SERVICE UNIT]
, [WSU: WEST SERVICE UNIT]
)
Description: Throughout Hillsborough County, there are many areas prone to flooding. Many of these areas operate at or near their maximum capacity, yet they lie within the path of future development. To overcome any adverse impacts that may result from future development within these areas, the County has classified certain receiving systems as either peak sensitive or volume sensitive areas. Volume sensitive areas are defined as systems that do not have a positive outfall for storm events less than or equal to the 25-year, 24-hour event. In addition, sites which do not directly discharge into a well-defined conveyance system (e.g., ditch, storm sewer, etc.) are considered to be volume sensitive as well. A detailed analysis utilizing the latest approved County Watershed Management Master Plan (WMMP) models was conducted to determine the peak and volume sensitive basins. The complete methodology report can be found on the HC Watershed Model Data SharePoint site.The project to update the peak and volume sensitive basins was completed in November of 2022, and the revised basin designations have been used for permitting purposes since July 1st, 2023.
Description: Throughout Hillsborough County, there are many areas prone to flooding. Many of these areas operate at or near their maximum capacity, yet they lie within the path of future development. To overcome any adverse impacts that may result from future development within these areas, the County has classified certain receiving systems as either peak sensitive or volume sensitive areas. A detailed analysis utilizing the latest approved County Watershed Management Master Plan (WMMP) models was conducted to determine the peak and volume sensitive basins. The complete methodology report can be found on the HC Watershed Model Data SharePoint site.The project to update the peak and volume sensitive basins was completed in November of 2022, and the revised basin designations have been used for permitting purposes since July 1st, 2023.
Description: This dataset contains polygon features representing easement areas reserved for stormwater management purposes.Drainage easements as provided by the Hillsborough County Property Appraiser.