Bridgeport Reservoir: 86.1% full as of 2018-02-17

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 2018-02-17 86.1 831.52 315,416 315,416 366,236 11,032
Yesterday 2018-02-16 86.2 831.53 315,526 315,526 366,236 11,033
2 days ago 2018-02-15 86.2 831.54 315,636 315,636 366,236 11,035
1 week ago 2018-02-10 86.5 831.64 316,741 316,741 366,236 11,050
1 month ago 2018-01-17 87.2 831.87 319,286 319,286 366,236 11,085
3 months ago 2017-11-17 91.0 833.12 333,251 333,251 366,236 11,258
6 months ago 2017-08-17 97.8 835.31 358,231 358,231 366,236 11,555
1 year ago 2017-02-17 100.0 836.26 369,269 366,236 366,236 - n.a. -
*

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 2018-02-17 14:00 831.54 836.0 -4.5 below flood pool
1 hour prior 2018-02-17 13:00 831.54 836.0 -4.5 below flood pool
2 hours prior 2018-02-17 12:00 831.53 836.0 -4.5 below flood pool
6 hours prior 2018-02-17 08:00 831.53 836.0 -4.5 below flood pool
12 hours prior 2018-02-17 02:00 831.52 836.0 -4.5 below flood pool
24 hours prior 2018-02-16 14:00 831.51 836.0 -4.5 below flood pool
48 hours prior 2018-02-15 14:00 831.54 836.0 -4.5 below flood pool
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1931-01-01
Vertical datum NGVD29
Gauge USGS:08043000
Dead pool elevation
ending 1971-02-01
751.4 ft above NGVD29
Dead pool elevation
starting 1971-02-01
752.0 ft above NGVD29
Service spillway crest elevation 836.0 ft above NGVD29
Top of flood gate elevation 842.0 ft above NGVD29
Emergency spillway crest elevation 866.0 ft above NGVD29
Flood pool elevation 851.0 ft above NGVD29
Maximum design elevation 871.2 ft above NGVD29
Top of dam elevation 874.0 ft above NGVD29
Conservation pool elevation
ending 1969-02-01
836.0 ft above NGVD29
Conservation pool elevation
1969-02-01 to 1971-02-01
840.0 ft above NGVD29
Conservation pool elevation
starting 1971-02-01
836.0 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

Lake Location