Lock & Dam 13 water level — Arkansas
Lock & Dam 13 in Arkansas was last measured at 391.28 ft (datum NGVD29), as of Aug 31, 2026, 8:00 AM (UTC+00:00) (USACE CWMS Data). Over its recent trend window the level has been steady (+0.0 ft).
- % of conservation pool full
- Not reported
- Storage
- Not reported
- Recent trend
- →Steady
+0.0 ft over the trend window
Recent trend
Readings this station published between Jun 2, 2026 and Jun 23, 2026 — a 20-day window — downsampled for display.
Data: USGS Water Services (waterservices.usgs.gov) and USACE CWMS Data (cwms-data.usace.army.mil), retrieved 2026-08-31. Both public domain (a work of the U.S. Government, 17 U.S.C. §105).
Source: USACE SWL/LD13-Headwater, retrieved Aug 31, 2026, 8:24 AM (UTC+00:00). Official page for this lake →
About this gauge's record
USACE's continuous elevation record for this project begins in 1969 .
The dam behind Lock & Dam 13
Lock & Dam 13 is held back by James W. Trimble Lock and Dam (also recorded as Pool 13; Lock & Dam 13) , a concrete structure , standing 51 ft high and running 7,110 ft along its crest , built across ARKANSAS in Sebastian County , near OZARK . It was completed in 1969 , and is owned by USACE - Little Rock District (a federal owner) , to a design credited to CESWL.
Its recorded primary purpose is navigation — the pool is held inside a narrow band to keep a navigable depth, so large swings are rare by design . It also serves navigation;recreation;hydroelectric.
It is founded on rock, with a concrete core. Its spillway is gated, so the operator can hold the pool above the spillway crest and meter what leaves. The spillway opening is 900 ft wide.
NID classes it significant hazard potential: a failure would be expected to damage property and infrastructure rather than cost lives. It is a consequence rating, not a condition rating.
At its normal pool the reservoir covers about 6,820 acres. NID records a maximum storage of 59,100 acre-ft against a normal storage of 53,100 acre-ft. Its maximum discharge capacity is 435,000 cubic feet per second.
Dam facts: National Inventory of Dams record AR00163 , filed by US Army Corps of Engineers — U.S. Army Corps of Engineers, public domain. Water levels above come from USACE CWMS Data and are a separate source. (How this dam was matched to this gauge →)
Other gauges at this site
A second gauge reports at this same structure. Its readings are listed here rather than on a separate page, because it measures the same water.
| Gauge | Source | Elevation | Storage |
|---|---|---|---|
| Lock & Dam 13 - Lock Chamber | USACE SWL/LD13-Lock_Chamber | 3,993.50 ft (NGVD29) | — |
How Lock & Dam 13 compares nearby
None of the 5 nearby lakes with a current trend are steady right now — this lake's movement looks specific to its own operation rather than shared regional conditions.
Nearby lakes
The six nearest published lakes by centroid distance (great-circle) — cross-state neighbors included.
| Lake | State | Level | Distance |
|---|---|---|---|
| Lock & Dam 13 - Lock Chamber | AR | 3,993.50 ft | 0 km |
| W.d. Mayo Ld14 | OK | 411.88 ft | 24 km |
| Lock & Dam 14 | OK | 411.98 ft | 24 km |
| Rs Kerr Ld15 | OK | 459.75 ft | 44 km |
| Lock & Dam 15 | OK | 459.71 ft | 44 km |
| Lock & Dam 12 | AR | 372.27 ft | 46 km |
Frequently asked questions
- What is the current water level of Lock & Dam 13?
- As of Aug 31, 2026, 8:00 AM (UTC+00:00), the pool elevation was 391.28 ft (datum NGVD29). See the trend chart above for the recent direction.
- Is Lock & Dam 13 full right now?
- Its managing agency does not publish a %-of-conservation-pool-full figure for this lake, so we show the bare level rather than estimate one.
- Where does this data come from?
- From USACE SWL/LD13-Headwater, retrieved Aug 31, 2026, 8:24 AM (UTC+00:00).
More in Arkansas
See every lake tracked in Arkansas, or read the methodology behind these figures.