Port Severn is the northern gateway, and the smallest lock on the Waterway. Its 25.6 metre (84 ft) length limits the size of vessel that can through-navigate the entire Waterway. It is a quick boat ride from Georgian Bay Islands National Park. Lock 45 has large grounds for boater camping and picnicking. Boaters should exercise caution to the west of the lock where they pass under Highway 400, as the channel width is restricted. In periods of high water flows, boaters should be prepared to be buffeted by currents in the navigation channel below the lock.

Lockstation Details

Chart: 2029

KM: 387.1 km (mile 240.6)

Lock Length: 25.6 m (84 ft)

Width: 7.0 m (23 ft)

Average Lift: 3.7 m (12 ft)

Length of stay: 2 night maximum

GPS Coordinates: 44°48'14.8"N 79°43'13.9"W

Hours and Services

Lockstation Hours of Operation

Information symbol Information
Accessible toilets Accessible Washroom
Water Potable water
Ice symbol Ice
Picnic Picnic Area
Nautical charts symbol Nautical charts
Canoe Canoe dock
Museum Indoor Exhibit / Museum
Local facilities and services
  • Information symbol
    Tourist Centres:

    Southeast Georgian Bay Chamber of Commerce
    Tel: (705) 756-4863

    Simcoe County - Huronia Tourism Association
    Tel: (705) 726-9300 ext 220 or 1-800-487-6642

    Muskoka Tourism
    Tel: 1-800-267-9700

    Southern Georgian Bay Chamber of Commerce
    Tel: (705) 526-7884 or 1-800-263-7745

  • groceries symbol
    Walking distance to groceries
  • Boat launch
    Boat Launches:

    Driftwood Cove Resort and Marina
    93 Port Severn Road North, Port Severn
    Tel: (705) 538-2502
    FEE: $15 to launch both ways
    Parking: $5 per day

Contact us Lock 45 – Port Severn Telephone: (705) 538 - 2586

Social media

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Twitter @TrentSevernNHS twitter.com/TrentSevernNHS
Twitter @TSWBoaterInfo  twitter.com/TSWBoaterInfo