Cooper (Chapman) Lake Water Level Today

Cooper (Chapman) Lake is 64.6% full at 434.4 ft as of Oct 24, according to the Texas Water Development Board.

64.6%

Full, by conservation storage

434.4 ft

Elevation above sea level

5.6 ft

Below full pool of 440.0 ft

Today, 434.4 ftFull pool, 440.0 ftNormal, 436.8 ft

Since the day before

−0.03 ft

Last 7 days

−0.25 ft

Last 30 days

−0.86 ft

Compared with normal

2.4 ft below

Updated Oct 24 (daily average). Source: Texas Water Development Board. Normal is the median level for Oct 24 from 2006 to 2026. Elevations are in feet above NGVD29.

Cooper (Chapman) Lake level history

30 days1 year10 years

Last 30 daysFull pool, 440.0 ft

Last 30 daysFull pool

This yearSame dates last yearFull pool, 440.0 ft

This yearSame dates last yearFull pool

One reading a weekFull pool, 440.0 ft

One reading a weekFull pool

Elevation in feet, one reading per day (one a week over 10 years). Source: Texas Water Development Board.

Common questions

Is Cooper (Chapman) Lake full?

No. It is 64.6% full by conservation storage, 5.6 ft below its full pool elevation of 440.0 ft.

What is the lowest Cooper (Chapman) Lake has been?

422.0 ft, in December 2006, since the lake first filled in December 1991.

What is the highest Cooper (Chapman) Lake has been?

448.5 ft, in March 2018, since the lake first filled in December 1991.

How does today compare with a normal year?

It is 2.4 ft below the median level for Oct 24 across the stored record.

Is Cooper (Chapman) Lake rising or falling?

Falling: it is down 0.25 ft over the last 7 days.

Records

All-time high	448.5 ft	Mar 2018
All-time low	422.0 ft	Dec 2006
This year's high	438.6 ft	Jun 2026
This year's low	434.4 ft	Oct 2026

Since the lake first filled, in December 1991. Source: Texas Water Development Board; before October 2000, the U.S. Army Corps of Engineers.

Lake facts

Operator	U.S. Army Corps of Engineers, Fort Worth District
Dam	Cooper Dam
Full pool	440.0 ft
Conservation capacity	258,723 acre-ft
Surface area	19,280 acres
County	Delta

Full pool and capacity: Texas Water Development Board. Dam facts: U.S. Army Corps of Engineers, National Inventory of Dams.

Other lakes near Cooper (Chapman) Lake

All Texas lakes

Lake	Percent full	Level	Change, 7 days	Updated
Bois d'Arc Lake	87.5%	531.2 ft	−0.15 ft	Oct 24
Lake Lavon	78.8%	487.6 ft	−0.20 ft	Oct 24
Pine Creek Lake	27.9%	426.3 ft	−0.54 ft	11:00 p.m. CT, Oct 24
Lake Ray Hubbard	83.6%	431.9 ft	−0.18 ft	Oct 24
Lake Texoma	98.8%	616.6 ft	+1.48 ft	Oct 24
McGee Creek Reservoir	78.2%	571.2 ft	−0.52 ft	Oct 23

Bois d'Arc Lake87.5% full Lake Lavon78.8% full Pine Creek Lake27.9% full Lake Ray Hubbard83.6% full Lake Texoma98.8% full McGee Creek Reservoir78.2% full

All Texas lakes

LakeLevelToday is not an official warning source. For flood watches and warnings near Cooper (Chapman) Lake, check the National Weather Service.