St. Marys River · SM-01
St. Marys Lock
Wait-time history, barge traffic and lock information for St. Marys Lock on the St. Marys River. Includes data coverage and source definitions.
- Waterway
- St. Marys River
- Location
- Sault Ste. Marie, MI
Recorded traffic and wait times
| Lock | Waterway | Lockages | Barges | Median commercial wait |
|---|---|---|---|---|
| St. Marys Lock (SM-01) | St. Marys River | 607 | 269 | 0.00 h |
90th-percentile commercial wait: 1.33 hours. Commercial lockages recorded: 264.
Recorded arrivals: 2026-09-04T14:45 to 2026-09-29T21:32 (EST, as reported).
No live status available for this lock.
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.