Toledo Bend Reservoir: 100.0% full as of 2024-05-19

Toledo Bend Reservoir straddles the border of Texas and Louisiana, Texas has rights to 50% of Toledo Bend Reservoir's total conservation capacity. Percent full, conservation storage and conservation capacity are based on the Texas share. 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 2024-05-19 100.0 172.56 4,590,944 2,236,450 2,236,450 185,142
Yesterday 2024-05-18 100.0 172.70 4,614,928 2,236,450 2,236,450 185,706
2 days ago 2024-05-17 100.0 172.81 4,633,384 2,236,450 2,236,450 186,118
1 week ago 2024-05-12 100.0 172.25 4,535,276 2,236,450 2,236,450 183,700
1 month ago 2024-04-19 100.0 172.53 4,585,689 2,236,450 2,236,450 185,012
3 months ago 2024-02-19 99.0 171.65 4,433,528 2,214,714 2,236,450 180,826
6 months ago 2023-11-19 84.0 167.64 3,761,521 1,878,710 2,236,450 161,810
1 year ago 2023-05-19 100.0 172.15 4,517,469 2,236,450 2,236,450 183,216
*

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 2024-05-19 18:30 172.48 172.00 0.48
1 hour prior 2024-05-19 17:30 172.48 172.00 0.48
2 hours prior 2024-05-19 16:30 172.50 172.00 0.50
6 hours prior 2024-05-19 12:30 172.52 172.00 0.52
12 hours prior 2024-05-19 06:30 172.57 172.00 0.57
24 hours prior 2024-05-18 18:30 172.66 172.00 0.66
48 hours prior 2024-05-17 18:30 172.77 172.00 0.77
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1969-01-01
Vertical datum NGVD29
Dead pool elevation 100.00 ft above NGVD29
Service spillway crest elevation 145.00 ft above NGVD29
Top of flood gate elevation 173.00 ft above NGVD29
Emergency spillway crest elevation 173.00 ft above NGVD29
Maximum design elevation 175.30 ft above NGVD29
Top of dam elevation 185.00 ft above NGVD29
Conservation pool elevation 172.00 ft above NGVD29
Data download (CSV) period of record, last one year, last 30 days

Elevation-Area-Capacity Curves

1974-10-01 (source: TWDB)
Data Source USGS:08025350

Lake Location