Recent changes
2017-9-14: The rating curve for Addicks Reservoir has been updated and replaced with data from the U.S. Army Corps of Engineers Galveston District.
For near-real time water levels of this reservoir and others in flood stage, Visit Flood Viewer
Addicks Reservoir is a flood control lake. It is not used for water supply and under normal conditions it is empty.
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 | 2020-01-23 | - n.a. - | 76.74 | - n.a. - | - n.a. - | - n.a. - | - n.a. - |
| Yesterday | 2020-01-22 | - n.a. - | 70.11 | - n.a. - | - n.a. - | - n.a. - | - n.a. - |
| 2 days ago | 2020-01-21 | - n.a. - | 68.94 | - n.a. - | - n.a. - | - n.a. - | - n.a. - |
| 1 week ago | 2020-01-16 | - n.a. - | 69.29 | - n.a. - | - n.a. - | - n.a. - | - n.a. - |
| 1 month ago | 2019-12-23 | - n.a. - | 68.82 | - n.a. - | - n.a. - | - n.a. - | - n.a. - |
| 3 months ago | 2019-10-23 | - n.a. - | 71.89 | - n.a. - | - n.a. - | - n.a. - | - n.a. - |
| 6 months ago | 2019-07-23 | - n.a. - | 68.98 | - n.a. - | - n.a. - | - n.a. - | - n.a. - |
| 1 year ago | 2019-01-23 | - n.a. - | 75.69 | - n.a. - | - n.a. - | - n.a. - | - 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) |
Flood Pool Lower Bound (ft) |
Height Into Flood Pool (ft) | |
|---|---|---|---|---|
| Most recent | 2020-01-23 19:15 | 77.93 | 67.50 | 10.43 |
| 1 hour prior | 2020-01-23 18:15 | 77.90 | 67.50 | 10.40 |
| 2 hours prior | 2020-01-23 17:15 | 77.87 | 67.50 | 10.37 |
| 6 hours prior | 2020-01-23 13:15 | 78.05 | 67.50 | 10.55 |
| 12 hours prior | 2020-01-23 07:15 | 76.65 | 67.50 | 9.15 |
| 24 hours prior | 2020-01-22 19:15 | 72.40 | 67.50 | 4.90 |
| 48 hours prior | 2020-01-21 19:15 | 68.89 | 67.50 | 1.39 |
*
Data is provisional and subject to revision.
Additional Information
| Impoundment date | 1948-01-01 |
| Vertical datum | NAVD88 |
| Gauge | USGS:08073000 |
| Dead pool elevation | 67.50 ft above NAVD88 |
| Emergency spillway crest elevation | 108.00 ft above NGVD29 |
| Top of dam elevation | 121.00 ft above NGVD29 |
| Data download (CSV) | period of record, last one year, last 30 days |
Lake Location
