Bridgeport Reservoir: 87.9% full as of 2025-10-23

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 2025-10-23 87.9 832.19 327,084 327,084 372,183 11,408
Yesterday 2025-10-22 88.0 832.22 327,427 327,427 372,183 11,414
2 days ago 2025-10-21 88.1 832.27 327,998 327,998 372,183 11,424
1 week ago 2025-10-16 88.7 832.46 330,172 330,172 372,183 11,462
1 month ago 2025-09-23 91.2 833.25 339,290 339,290 372,183 11,624
3 months ago 2025-07-23 98.5 835.56 366,782 366,782 372,183 12,213
6 months ago 2025-04-23 88.7 832.47 330,286 330,286 372,183 11,464
1 year ago 2024-10-23 63.8 823.63 237,603 237,603 372,183 9,482
*

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 2025-10-23 07:00 832.19 836.00 -3.81 below flood pool
1 hour prior 2025-10-23 06:00 832.18 836.00 -3.82 below flood pool
2 hours prior 2025-10-23 05:00 832.18 836.00 -3.82 below flood pool
6 hours prior 2025-10-23 01:00 832.19 836.00 -3.81 below flood pool
12 hours prior 2025-10-22 19:00 832.20 836.00 -3.80 below flood pool
24 hours prior 2025-10-22 07:00 832.23 836.00 -3.77 below flood pool
48 hours prior 2025-10-21 07:00 832.28 836.00 -3.72 below 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