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Highway 417 will close in both directions from 6 pm on Saturday, March 14 until 11 am on Sunday, March 15.
A section of Highway 417 will close in both directions from 6 pm on Saturday, March 14 until 11 am on Sunday, March 15, resulting in significant traffic impacts. The eastbound on- ramps at Nicholas and Metcalfe streets will also close, but all other ramps in the area will remain open.
Lane reductions and ramp closures are scheduled to start at 5 pm on Saturday, with the full closure of Highway 417 scheduled to be in place by 6 pm. The closures are required to install six steel girders across the roadway as part of the MTO’s Nicholas Street underpass replacement.
The following detours will be in effect during the closure. Maps of the detours are available on Ottawa.ca:
Westbound detour for Highway 417 closure
- Westbound motorists must exit the highway at Nicholas Street and Mann Avenue
- Keep right for Mann Avenue
- Turn left on Greenfield Avenue
- Turn left to the westbound Highway 417 on-ramp
Eastbound detour for Highway 417 closure
- Eastbound motorists must exit the highway at Nicholas Street and Lees Avenue
- Turn left on Lees Avenue
- Turn left to the eastbound Highway 417 on-ramp
Detour for 417 eastbound on-ramp at Nicholas
- From Gatineau
- Motorists coming across the Macdonald-Cartier or Alexandra bridges from Gatineau to access eastbound Highway 417 should proceed to St. Patrick Street
- Turn right on Vanier Parkway
- Bear right onto the eastbound Highway 417 on-ramp
- From ByWard Market
- Motorists coming from the ByWard Market to access eastbound Highway 417 should travel east on Rideau Street
- Turn right on Vanier Parkway
- Bear right onto the eastbound Highway 417 on-ramp
- From Sandy Hill
- Motorists coming from Sandy Hill to access eastbound Highway 417 should proceed north on Nicholas Street
- Continue north on Waller Street
- Turn right on Rideau Street
- Turn right on Vanier Parkway
- Bear right onto the eastbound Highway 417 on-ramp
- From the downtown core, west of the Rideau Canal
- Motorists coming from the downtown core to access eastbound highway 417 should proceed eastbound on Laurier Avenue
- Turn left on Charlotte Street
- Turn right on Rideau Street
- Turn right on Vanier Parkway
- Bear right onto the eastbound Highway 417 on-ramp
Detour for 417 eastbound on-ramp at Metcalfe
- Motorist should travel eastbound on Isabella Street
- Turn right on Elgin Street
- Bear left onto Hawthorne Avenue and cross the Pretoria Bridge
- Turn right on Main Street
- Turn left on Lees Avenue
- Turn left to the eastbound Highway 417 on-ramp
The work is weather dependent. In the event of inclement weather, the work will take place the following weekend, March 21.
