Choke Canyon Reservoir is managed by City of Corpus Christi / U.S. Bureau of Reclamation. Lake Insights displays its latest available elevation from U.S. Geological Survey. Published reference elevations are listed below.
Lake Status
29.73 feet below full pool
−29.73 ft vs full pool
- 7-day trend
- Falling
- 7-day change
- Down 0.16 ft
- 30-day change
- Down 0.90 ft
- Last updated
- Today
Choke Canyon Reservoir is currently 29.73 feet below full pool and has fallen slightly over the past week. Readings show continued drawdown relative to full pool, with levels trending lower over the past week.
Watershed drought conditions
Live Oak County, TX · surrounding county from lake location
Severe Drought
Severe drought conditions are present.
Severity
Weekly trend
Worsening
Compared with last week
Official drought
Yes
100% of the watershed is currently classified as official drought (D1+).
Expected impacts
- Lower stream inflows
- Lake levels may decline faster
- Vegetation is becoming drier
- Minor increase in wildfire risk
U.S. Drought Monitor · map date Sep 15, 2026. Updated weekly. droughtmonitor.unl.eduView drought map for Live Oak County, TX
Key Facts
Managing authority
Waterbody / project type
Official purposes
Full pool
Datum
Current-level source
Project / NID identifier
Dam / watershed (NID design values)
Static design values from a confidently matched National Inventory of Dams record — not live gage readings.
- Normal storage
- 714,117 acre-ft
- Max storage
- 1.1M acre-ft
- Surface area at normal pool
- 25,733 acres
- Drainage area
- 5,490 sq mi
- Spillway capacity (design)
- 257,500 cfs
- Dam structure
- Earth · 141 ft high · completed 1982
- Hazard classification
- High
- Safety & inspection
- last inspection Mar 2, 2023
National Inventory of Dams · matched record: Choke Canyon Dam (TX04425)
How this lake is operated
- Documented project purposes (National Inventory of Dams): Other, Recreation, Water Supply.
Why the level can change
General factors for reservoirs like this
These are common influences for this type of lake. They do not identify the cause of a specific current change unless an operator update confirms it.
Rainfall & inflows
Rain and upstream river inflows can raise reservoir levels, especially after storms.
Downstream releases
When an operator releases water through a dam, reservoir storage can fall and downstream flows can rise.
Flood-risk operations
Some projects store or release water under flood-risk rules when conditions require it.
Water supply
Some reservoirs support municipal, industrial, irrigation, or regional water-supply needs.
Hydropower
Hydropower projects may pass water through turbines when generating electricity.
Seasonal weather
Dry periods, heat, evaporation, and seasonal rainfall patterns can affect storage over weeks and months.
Published reference elevations
- Full pool
- 221.00 ft
Published reference elevation. Not necessarily a fixed year-round target for every project.
Current data source
Managing authority: City of Corpus Christi / U.S. Bureau of Reclamation
Observation source used by Lake Insights: U.S. Geological Survey
Who manages the lake and who publishes the reading Lake Insights displays can differ. Lake Insights does not invent a source label from the managing authority alone.
General education
Shared background — not lake-specific facts
Lake Insights aggregates water level information from authoritative public sources such as the U.S. Army Corps of Engineers, NOAA, TVA, Bureau of Reclamation, power utilities, and other official lake operators. We preserve historical observations, calculate trends, and present lake conditions in a consistent format. For U.S. Geological Survey, we link to the official source whenever it is available. Lake Insights does not predict future lake levels unless an official forecast has been published by the managing authority.
Common questions about Choke Canyon Reservoir
- Who manages Choke Canyon Reservoir?
- Choke Canyon Reservoir is managed by City of Corpus Christi / U.S. Bureau of Reclamation. Lake Insights reports published gauge readings; it does not operate the waterbody.
- What is full pool at Choke Canyon Reservoir?
- The published full-pool elevation for Choke Canyon Reservoir is 221.00 ft (NGVD29). Full pool is a published reference elevation — not a prediction of today’s level.
- Where does Lake Insights get the level reading for Choke Canyon Reservoir?
- Lake Insights displays the latest available elevation for Choke Canyon Reservoir from U.S. Geological Survey. The managing authority (City of Corpus Christi / U.S. Bureau of Reclamation) may differ from the agency that publishes the observation used on this page.
- What datum is used for Choke Canyon Reservoir?
- Elevations for Choke Canyon Reservoir are referenced to NGVD29 (MSL).
- What are the documented purposes of Choke Canyon Reservoir?
- Documented purposes for Choke Canyon Reservoir (National Inventory of Dams): Other, Recreation, Water Supply.