O.H. Ivie Reservoir water level

Of full pool
41.6%
▼ 0.4 points since September 27, 2026

▼ 8.3 points from 49.9% a year ago

0%100% full
Reading as of
Sep 30, 2026

Source: waterdata.usgs.gov/monitoring-location/USGS-08136600, accessed October 1, 2026. Updated every 6 hours.

O.H. Ivie Reservoir is at 41.7% of full pool as of September 29, 2026. O.H. Ivie Reservoir was last full on September 25, 1997 (95% of normal storage). O.H. Ivie Reservoir is near Voss, Texas.

O.H. Ivie Reservoir level history

Last full
September 25, 1997
95% of normal storage
Highest since 1990
103.6% of normal storage
June 25, 1997
Lowest since 1992
10.7% of normal storage
May 22, 2014, counted after it first filled
Data covers
1990 to today
from September 21, 1990

This site counts a reservoir as full on a day its storage is at or above 95% of the dam's normal storage (National Inventory of Dams). Many reservoirs rarely reach 100%, even in wet years, because operators release water for irrigation, power or flood control before they fill, so this site treats 95% as full. Highs and lows are daily readings in the published data, not official records. Source: USGS daily data.

Storage, % of full pool, since 1990

O.H. Ivie Reservoir storage, percent of full pool, since 1990: 12.8% on September 23, 1990, 41.8% on September 28, 2026.

O.H. Ivie Reservoir is falling: 41.8% full, down 0.2 percentage points since September 27, 2026.

On this same date last year (September 28, 2025), O.H. Ivie Reservoir was 49.9% full, 8.1 percentage points higher than today's 41.8%.

Weekly averages of the source's daily readings; older years may be monthly or sparser where that is all the source published. Download the charted data (JSON).

Latest
41.8%
September 28, 2026
Previous reading
42%
September 27, 2026
Same date last year
49.9%
September 28, 2025

O.H. Ivie Reservoir is at 31.5002, -99.6684. Open in OpenStreetMap.

Open in Google Maps Directions

The dam

Height
149 ft
Built
1989
Name
Simon Freese Dam
Operator
Local Government

Sources: nid.sec.usace.army.mil, accessed September 29, 2026

On the water

No campgrounds, boat ramps, or swim spots linked to O.H. Ivie Reservoir yet.

Common questions

O.H. Ivie Reservoir is at 41.7% of full pool as of September 29, 2026.
O.H. Ivie Reservoir was last full on September 25, 1997, when it held 95% of its normal storage. This site counts a reservoir as full on a day its storage is at or above 95% of the dam's normal storage (National Inventory of Dams). Many reservoirs rarely reach 100%, even in wet years, because operators release water for irrigation, power or flood control before they fill, so this site treats 95% as full. Based on USGS daily data since September 21, 1990.
In USGS daily data since September 21, 1990, O.H. Ivie Reservoir's highest storage was 103.6% of normal storage on June 25, 1997. Its lowest after it first filled (March 4, 1992) was 10.7% of normal storage on May 22, 2014. These are the highest and lowest daily readings in the published data, not official records.
O.H. Ivie Reservoir is near Voss, Texas (31.5002, -99.6684).
Local Government operates the dam at O.H. Ivie Reservoir.
O.H. Ivie Reservoir's dam is used for Recreation, Water supply.