Data are available for 58 sites along I-75 and for 28 sites along State Road 29 in Big Cypress National Preserve.
Elizabeth Hittle Ricardo Solis, 2008, Hydrologic Data Collected along I-75/SR29 corridor in Big Cypress National Preserve.Online Links:
Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.1. Longitudes are given to the nearest 0.1. Latitude and longitude values are specified in Degrees, minutes, and decimal seconds.
The horizontal datum used is North American Datum of 1983.
The ellipsoid used is Geodetic Reference System 80.
The semi-major axis of the ellipsoid used is 6378137.
The flattening of the ellipsoid used is 1/298.257.
| Value | Definition |
|---|---|
| daily mean gage height | daily mean height of the water surface above an established datum plane, such as in a river above a predetermined point that may, or may not, be at the channel floor |
| discharge | the volume of fluid passing a point per unit of time |
| discrete measurements | data collected at a particular culvert |
| Value | Definition |
|---|---|
| Across SR -29 | location of data collection site |
| Barron River Canal | location of data collection site |
| Across I-75 | location of data collection site |
| Value | Definition |
|---|---|
| y | yes |
| n | no |
latitude
| Value | Definition |
|---|---|
| mile marker | location along I-75 |
| miles | Distance north of SR 41 |
longitude
| Value | Definition |
|---|---|
| SR-29 | reach number |
| 1 | used for I-75 stations |
| 2 | used for I-75 stations |
| 3 | used for I-75 stations |
| Value | Definition |
|---|---|
| y | yes |
| n | no |
station name
| Value | Definition |
|---|---|
| bridge | A structure including supports erected over a depression or obstacle, such as water, highway, or railway, and having a track or passageway for carrying traffic or other moving loads, and having an opening measured along the center of the roadway of more than 20 feet between undercopings of abutments or spring line of arches, or extreme ends of openings for multiple boxes. |
| wildlife Crossing | a place where wildlife crosses a road or trail |
| weir | a dam in a stream or river used to raise the water level or divert its flow |
| discrete measuring point | point at which a measurement was taken at a specific culvert |
| culvert | a transverse drain |
USGS NWIS ID
954 377-5948 (voice)
954 377-5901 (FAX)
rsolis@usgs.gov
Data collected in this project will provide baseline information about a major current barrier to sheetflow, I-75. The data are expected to support the research on the existing linkages among geologic, hydrologic, chemical, climatological, and biological processes that currently shape the Everglades and will provide insight into the predrainage Everglades. The baseline flow will contribute to the Southwest Florida Feasibility Study addressing the health of upland and aquatic ecosystems in the 4,300 square mile area.
Incorporate multi-agency/university and modeling contacts into a review of previous and/or current projects related to flow monitoring across I-75 bordering the Big Cypress Basin eastern boundary and SR 29 on the western perimeter of the Preserve. Collate this information together with available GIS coverages for development of a plan to coordinate future flow measurement team deployment for both boundaries of the study area.
Reconnaissance of each bridge, culvert and wildlife through-way for appropriate measurement locations and methods. This includes documentation of weed conditions affecting periodic flow shifting, water depth, and establishment of reference marks to do distance to water measurements for indications of significant east-west flow "short-circuting".
Discharge at each bridge, culvert and wildlife throughway will be measured in one day. Stream-flow measurements will be accomplished by Price AA meter, flow rods, or acoustic doppler point and/or profiling velocity meters as conditions at the controls allow.
As of the end of September, 2006 four synoptic discharge measurements have been accomplished in the I-75 corridor from the L-28 Interceptor Canal to SR 29 and SR 29 from I-75 south to USGS site 02291000 Barron River near Everglades, FL.
Initial evaluation determined the need to move one culvert index site scheduled for August 31, 2006
Three index-velocity gages have been installed inside culverts running under I-75 and an additioal one may be installed in WY 2007. These gages collected stage and velocity data every 15 minutes, Additional measurements have been made at these culverts for discharge verification.
The development of a discharge relationship is directly related to the DOI Science plan by giving a continuous record of discharge into Big Cypress National Preserve. If a relationship can not be determined, specific recommendations will be prepared concerning the best methodology. In order to ensure the instrumentation is working well, data will be downloaded once a month as well performing a discharge measurement just at that particular culvert.
DOT benchmark placement close to the bridges will be researched. A team of personnel will then go and field-truth the placement of the benchmarks to assess the feasibility of running a set of optical levels from the benchmark to a predetermined reference mark on the bridge. These bridge reference marks will be fully documented and the information will be provided to Big Cypress personnel.
Reference marks that are tied into existing benchmarks will lead to water level measurements at specific bridges that are tied to the same datum plane.
This task is to work with the Florida DOT and their respective contractors to put gates in the existing fences so that the equipment that is currently located in the median of I-75 can be moved inside the fence. This will allow the potential to telemeter these sites in the future so conditions can be easily monitored.
Person who carried out this activity:
954 377-5948 (voice)
954 377-5901 (FAX)
rsolis@usgs.gov
not available
not available
Are there legal restrictions on access or use of the data?
- Access_Constraints: none
- Use_Constraints: none
727 803-8747 ext 3028 (voice)
727 803-2030 (FAX)
hhenkel@usgs.gov
Hydrologic data collected along Interstate-75/State Road 29 corridor in Big Cypress National Preserve
The data have no explicit or implied guarantees.
| Data format: | Each data collection site has a Google Map with links to station information and data in format Google Map |
|---|---|
| Network links: |
<http://sofia.usgs.gov/exchange/bcnp_hydro/> |
727 803-8747 ext 3028 (voice)
727 803-2030 (FAX)
sofia-metadata@usgs.gov
U.S. Department of the Interior, U.S. Geological Survey
Comments and suggestions? Contact: Heather
Henkel - Webmaster
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