Green & Barren Rivers · GB-21
Lock and Dam 1
Wait-time history, barge traffic and lock information for Lock and Dam 1 on the Green & Barren Rivers. Includes data coverage and source definitions.
- Waterway
- Green & Barren Rivers
- Location
- Spottsville, KY
- River mile
- 9.1
- Chamber length (ft)
- 600.0
- Chamber width (ft)
- 84.0
- Opened
- 1956.0
Recorded traffic and wait times
| Lock | Waterway | Lockages | Barges | Median commercial wait |
|---|---|---|---|---|
| Lock and Dam 1 (GB-21) | Green & Barren Rivers | 130 | 126 | 0.00 h |
90th-percentile commercial wait: 0.00 hours. Commercial lockages recorded: 37.
Recorded arrivals: 2026-09-04T19:42 to 2026-10-04T16:00 (CST, as reported).
Status snapshot collected: 2026-10-05T14:09Z. Tows pending: 0. Reported four-hour average delay: 0.0 minutes.
Page data built 2026-10-05T14:21:30Z. Wait means arrival to start of lockage. Recent completed passages may understate delays while other tows remain waiting. See definitions and limitations.