Timber inspection for Canada's aging, and corroding, bridge inventory
From the Maritimes to the Prairies to the coast, WRD inspects Canada’s timber bridges non-destructively, rates what they can carry, and shows owners when a restoration beats a replacement.
Canada runs on aging timber bridges, in climates that punish steel
Coastal Canada sits in some of the highest corrosion zones on Earth, and inland freeze-thaw cycles are just as unforgiving, which is exactly where timber’s durability advantage shows up, but only if the structure is diagnosed properly. Too many sound timber bridges get closed and replaced because no one measured what the wood could still do. WRD’s Level 2 and Level 3 inspections use EPHOD® non-destructive testing to find internal decay and rate real capacity, so provincial and municipal owners can defend a restore-or-replace decision with data, not assumption.
Timber bridge deck works, Nova Scotia
Who We Serve Here
Built for Canadian bridge owners
Provincial & territorial transportation
County & municipal public works
Heritage stewards
Bridge-network asset managers
Timber Restoration Services
The method, in brief
Canadian inspections run on WRD’s accredited, non-destructive method, EPHOD® and PET stress-wave testing, and can run as phase one of a design-build with a client Hold Point, so testing directs the repair. See how a WRD inspection works →
Standards & Credentials
Assessed to CSA S6, with the CL-625 model
Bridge assessment to CSA S6 (Canadian Highway Bridge Design Code) with the CL-625 live-load model. IAS ISO 17020 inspection · ISO 17025 lab, so the report carries defensible weight with reviewers and agencies.
Glulam arch connections, Roger Bacon Bridge
Regional Projects
On record in Canada
Roger Bacon Bridge
Nappan, Nova Scotia · 2019
Roger Bacon Bridge
Longest clear-span three-lane timber bridge in Canada
Inspection and testing behind a 40 m glulam arch built for a 75-year life; multiple 2022 WoodWorks Atlantic awards.
Providence Bridge
Oshawa, Ontario · 2013
Providence Bridge
Five-span timber overpass across a CP rail line
WRD inspected the Providence Road overpass in June 2013 and recommended a repair strategy. That October the substructure was restored in place and the superstructure fully replaced with glulam girders, a transverse glulam deck, and a crash-tested guard rail, achieving a CL-625-ONT load rating.