Captain James Lowe
USCG 200 Ton Licensed Master
(727) 236-1385

ICW Bridges and Locks

Find bridges and locks throughout the U.S. navigable waterway system.

Search by state, waterway, or mile marker to locate bridge clearances, operating schedules, and lock information.

Schedules and operating conditions change. Always verify current information with the bridge tender, lockmaster, or the latest Local Notice to Mariners before relying on published times.

Or pick a state

7 results. Grouped by waterway. Open one. Sorted by mile marker.

St. Marys River · 5

Soo Davis Lock

Lock · St. Marys River · MI · Mile 0

USACE. Used less often.

VHF 14

1350 x 80 ft.

Google Maps

Soo Locks

Lock · St. Marys River · MI · Mile 0

USACE. Poe, MacArthur, and smaller locks. Free for recreational boats.

VHF 14 · 906-635-3312

Connects Lake Superior to Lake Huron. No bridge on the locks.

Google Maps

Soo MacArthur Lock

Lock · St. Marys River · MI · Mile 0

USACE. Free. 24/7.

VHF 14

Sault Ste. Marie. 800 x 80 ft. Max 730 ft.

Google Maps

Soo Poe Lock

Lock · St. Marys River · MI · Mile 0

USACE. Free. 24/7.

VHF 14

Largest. 1200 x 110 ft. Handles lake freighters.

Google Maps

Soo Sabin Lock

Lock · St. Marys River · MI · Mile 0

USACE. Used less often.

VHF 14

1350 x 80 ft.

Google Maps
Detroit River · 1

Ambassador Bridge

Bridge · Detroit River · MI · Mile 0

Fixed Vertical clearance: 152 ft

Fixed bridge.

Coast Pilot. About 152 ft at center.

Google Maps
St. Clair River · 1

Blue Water Bridge

Bridge · St. Clair River · MI · Mile 0

Fixed Vertical clearance: 125 ft

Fixed bridge.

Port Huron. About 125 ft.

Google Maps
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