Bridgeport Reservoir: 100.0% full as of 2025-05-07

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)
Most recent 2025-05-07 100.0 836.93 384,003 372,183 372,183 12,739
1 day prior 2025-05-06 100.0 837.24 387,965 372,183 372,183 12,820
2 days prior 2025-05-05 100.0 837.72 394,148 372,183 372,183 12,944
1 week prior 2025-04-30 100.0 837.01 385,023 372,183 372,183 12,760
1 month prior 2025-04-07 72.1 826.78 268,516 268,516 372,183 10,170
3 months prior 2025-02-07 73.3 827.19 272,707 272,707 372,183 10,276
6 months prior 2024-11-07 63.6 823.54 236,750 236,750 372,183 9,465
1 year prior 2024-05-07 61.4 822.65 228,406 228,406 372,183 9,284
*

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 2025-05-07 22:00 836.75 836.00 0.75 into flood pool
1 hour prior 2025-05-07 21:00 836.76 836.00 0.76 into flood pool
2 hours prior 2025-05-07 20:00 836.77 836.00 0.77 into flood pool
6 hours prior 2025-05-07 16:00 836.82 836.00 0.82 into flood pool
12 hours prior 2025-05-07 10:00 836.91 836.00 0.91 into flood pool
24 hours prior 2025-05-06 22:00 837.09 836.00 1.09 into flood pool
48 hours prior 2025-05-05 22:00 837.50 836.00 1.50 into flood pool
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1931-01-01
Vertical datum
Start date: 2016-11-10 		NAVD88
Vertical datum
End date: 2016-11-09 		NGVD29
Dead pool elevation
Start date: 1971-02-01 		752.00 ft above NAVD88
Dead pool elevation
End date: 1971-02-01 		751.40 ft above NGVD29
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
Start date: 1971-02-01 		836.00 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
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