Recent changes

2013-02-12: The rating curve for Caddo Reservoir has been updated and replaced with data from the Texas Water Development Board's Report 126.

Caddo Lake: 100.0% full as of 2019-05-23

Caddo Lake straddles the border of Texas and Louisiana, Texas has rights to 50% of Lake Caddo'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 2019-05-23 100.0 172.48 250,657 29,898 29,898 35,682
Yesterday 2019-05-22 100.0 172.83 263,295 29,898 29,898 36,458
2 days ago 2019-05-21 100.0 173.31 281,331 29,898 29,898 37,532
1 week ago 2019-05-16 100.0 175.76 381,349 29,898 29,898 42,857
1 month ago 2019-04-23 100.0 170.96 198,916 29,898 29,898 32,249
3 months ago 2019-02-23 100.0 170.10 172,055 29,898 29,898 30,291
6 months ago 2018-11-23 100.0 170.34 180,144 29,898 29,898 30,769
1 year ago 2018-05-23 100.0 168.95 139,051 29,898 29,898 27,714
*

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 2019-05-23 14:00 172.32 168.50 3.82 into flood pool
1 hour prior 2019-05-23 13:00 172.35 168.50 3.85 into flood pool
2 hours prior 2019-05-23 12:00 172.36 168.50 3.86 into flood pool
6 hours prior 2019-05-23 08:00 172.44 168.50 3.94 into flood pool
12 hours prior 2019-05-23 02:00 172.54 168.50 4.04 into flood pool
24 hours prior 2019-05-22 14:00 172.78 168.50 4.28 into flood pool
48 hours prior 2019-05-21 14:00 173.25 168.50 4.75 into flood pool
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1971-01-01
Vertical datum NGVD29
Gauge USGS:07346310
Dead pool elevation 166.00 ft above NGVD29
Service spillway crest elevation 168.50 ft above NGVD29
Emergency spillway crest elevation 170.50 ft above NGVD29
Top of dam elevation 176.00 ft above NGVD29
Conservation pool elevation 168.50 ft above NGVD29
Data download (CSV) period of record, last one year, last 30 days

Elevation-Area-Capacity Curves

1974-10-01 (source: twdb)

Lake Location