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Lock and Dam 45 Port Severn

Mile Marker: 240.5
Lat / Lon: N 44° 48.252' / W 079° 43.226'
Number of Chambers: One
Size: 7.0m x 25.6m
Tie Off: Cables
VHF Channel: None
Phone: 705-538-2586
Schedule:
2024 Navigation Season:
Please note: Station opening and closing times, as well as first and last lockage, are not guaranteed and may be affected by water management duties, maintenance activities or other types of navigation interruptions.
May 17 to June 20
Monday to Thursday 10:00 am – 3:30 pm Friday to Sunday and Victoria Day (May 20) 9:00 am – 6:30 pm
June 21 to September 2
Monday to Thursday 9:00 am – 5:30 pm Friday to Sunday and Canada Day (July 1), Civic Holiday (Aug. 5), Labour Day (Sept. 2) 9:00 am – 6:30 pm
September 3 to October 14
Monday to Friday 10:00 am – 3:30 pm Saturday to Sunday and Thanksgiving (Oct. 14) 9:00 am – 4:30 pm
Last Lockage
Follow these guidelines to maximize chances of being locked through at the end of the day:
- All vessels must arrive at the designated blue zone at last lockage time
- At swing bridges, the last bridge swing will be 10 minutes after last lockage time.
More Information
- Access to lockstations is prohibited between 10:00 pm and 6:00 am
- Lockstations are not staffed after-hours
- For emergencies after-hours, please call 911 for police, fire, ambulance
Amenities:
Overnight mooring (with pass), washrooms, potable water, picnic area, ice.

3 Boater Comments

These are observations from the boating community. Waterway Guide information is verified regularly and all efforts will be made to validate any new updates submitted here. Thank you for taking the time to share comments about your experience.

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Comment by: Jeffrey Brown, Sea Tiger, on May 22, 2024
Vessel Type: Power
LOA: 31'
Draft: 3.0'

5/19/2024. The dam spillway dumps into the upbound approach to L45 blue line wall. On the upbound approach under Bridge Hwy 400 water is channeled into a narrow channel and buoys will alert you to strong currents. On my upbound approach to Bridge Hwy 400 the buoys were dancing, in the pool the spillway was dumping water. With the addition of flow discharge from the L45, water conditions were turbulent bordering on white-water conditions.

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Comment by: Tom Taylor, Reliance, on Aug 19, 2023
Vessel Type: Power
LOA: 42'
Draft: 5.0'

Concur with 2019 comments. CA 400 bridge had a noticeable current. Channel under bridge is tiny, one large boat at a time. The channel to Huron has two choices, the shorter one has some narrow spots and tight turns. It had me holding my breath a few places.

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Comment by: Garry McClean, Watermark, on Feb 10, 2019
Vessel Type: Power
LOA: 40'
Draft: 4.0'

Smallest lock in the system, and can be slow transiting. Ample tie up space above, and suggest try to transit first thing. Three restaurants in the area, best would be Rawley lodge, which also offers transient tie up, but reserve at least 2-3 days ahead. Below lock can become tricky with lots of markers, and tight turns. Suggest use of VHF radio and securite call, to avoid meeting other boats in some very tight spots. Liquor store and some groceries nearby.

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