Bridgeport Reservoir: 58.6% full as of 2024-04-23

The elevation-storage rating curve used to produce the storage hydrograph is made of two segments: (1) the segment up to the conservation pool top (below the red line) is based on measured data, and (2) the segment in the flood pool (above the red line) is an extrapolation from the first segment and shouldn't be relied upon for flood storage information.

Historical Data

Date Percent Full Mean Water Level
(ft)
Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Surface Area
(acres)
Today 2024-04-23 58.6 821.51 217,952 217,952 372,183 9,059
Yesterday 2024-04-22 58.3 821.39 216,866 216,866 372,183 9,035
2 days ago 2024-04-21 58.0 821.26 215,693 215,693 372,183 9,008
1 week ago 2024-04-16 57.6 821.13 214,524 214,524 372,183 8,980
1 month ago 2024-03-23 56.7 820.73 210,949 210,949 372,183 8,898
3 months ago 2024-01-23 55.8 820.37 207,758 207,758 372,183 8,825
6 months ago 2023-10-23 56.7 820.73 210,949 210,949 372,183 8,898
1 year ago 2023-04-23 74.0 827.47 275,595 275,595 372,183 10,357
*

Percent Full is based on Conservation Storage and Conservation Capacity and doesn't account for storage in flood pool.

**

   Values above, including today's are averaged conditions. For near real-time instantaneous water level, see table below or the interactive map viewer.

Most Recent Instantaneous Water Level

Date/time Water Level
(ft)
Conservation Pool Elevation
(ft)
Height Above Conservation Pool
(ft)
Most recent 2024-04-23 12:00 821.54 836.00 -14.46 below flood pool
1 hour prior 2024-04-23 11:00 821.55 836.00 -14.45 below flood pool
2 hours prior 2024-04-23 10:00 821.54 836.00 -14.46 below flood pool
6 hours prior 2024-04-23 06:00 821.53 836.00 -14.47 below flood pool
12 hours prior 2024-04-23 00:00 821.47 836.00 -14.53 below flood pool
24 hours prior 2024-04-22 12:00 821.38 836.00 -14.62 below flood pool
48 hours prior 2024-04-21 12:00 821.26 836.00 -14.74 below flood pool
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1931-01-01
Vertical datum
End date: 2016-11-09
NGVD29
Vertical datum
Start date: 2016-11-10
NAVD88
Dead pool elevation
End date: 1971-02-01
751.40 ft above NGVD29
Dead pool elevation
Start date: 1971-02-01
752.00 ft above NAVD88
Service spillway crest elevation 819.52 ft above NAVD88
Top of flood gate elevation 841.52 ft above NAVD88
Emergency spillway crest elevation 866.00 ft above NAVD88
Flood pool elevation 851.00 ft above NAVD88
Maximum design elevation 871.22 ft above NAVD88
Top of dam elevation 874.00 ft above NAVD88
Conservation pool elevation
End date: 1969-02-01
836.00 ft above NGVD29
Conservation pool elevation
Start date to end date: 1969-02-01 to 1971-02-01
840.00 ft above NGVD29
Conservation pool elevation
Start date: 1971-02-01
836.00 ft above NAVD88
Data download (CSV) period of record, last one year, last 30 days

Elevation-Area-Capacity Curves

1931-01-01 (source: USGS)
2000-04-01 (source: TWDB) : GIS Data
2010-12-01 (source: TWDB) : GIS Data
2020-10-01 (source: TWDB) : GIS Data
Data Source USGS:08043000

Lake Location