Bridge and Culvert Rehabilitation | Town of The Blue Mountains, ON

On this page:
1. Project Updates
2. 11th Line Bridge
3. 6th Line Bridge
4. Red Wing Bridge
5. Other Bridges and Culverts

The Town's Bridge and Culvert Rehabilitation program is a multi-year effort to repair deficiencies and extend the lifespan of a number of Town-owned structures. The scope of work will vary between sites but generally includes structural rehabilitation, surface repairs and guiderail replacement or rehabilitation.

Arnott Construction has been awarded the construction tender for the 2026 workplan which includes a total of seven bridges and culverts. Three of the bridges identified for rehabilitation in 2026 will require full closures while the work is being completed, while the remaining sites will only require single-lane restrictions. Work will be staggered so that only one structure is being rehabilitated at a time. The bridges which require temporary closures include:

Red Wing Bridge, 10th Line (Bridge 6)
6th Line Bridge, north of 12th Sideroad (Bridge 8)
11th Line Bridge, north of Sideroad 33 (Bridge 19)

More details about these bridges can be found in the corresponding sections on this page.

Project Updates

July 17, 2026 - Road closures on 6th Line and 11th Line

Arnott Construction resumed work on the 11th Line Bridge this past Wednesday. The bridge is fully closed to all traffic to allow for concrete rehabilitation and the installation of a new guard rail. The closure on 11th Line is planned for three weeks, ending August 7, 2026. Arnott has also started work on the 6th Line Bridge, north of 12th Sideroad. This structure is also fully closed to allow for rehabilitation of the existing culvert and installation of a new steel beam guard rail. Preliminary work on the 12th Sideroad Bridge between 10th Line and Grey Road 2 is expected to begin next week. This work will involve lane closures with alternating single lane traffic. Please note that weather and material delivery may impact planned schedules.

July 9, 2026 - Schedule updates for 6th Line
Arnott Construction has updated their anticipated schedules for the rehabilitation of the 6th Line Bridge. They are expecting to begin work on Wednesday, July 15 with a full road closure in place until August 6. At this time they will be pausing work on the 11th Line Bridge. They expect to return to the 11th Line site on Monday, July 20 to resume work on the superstructure. Current anticipated schedules for 12th Sideroad, Victoria Corners and Red Wing remain unchanged.
June 23, 2026 - Schedule updates for 11th Line and Red Wing Bridges
Arnott Construction has completed rehabilitation work on the Slabtown Bridge, including most upgrades to the guiderail and end treatments. They will be on site one day this week to complete remaining guiderail work.
Arnott has also updated their anticipated schedules for the 11th Line Bridge and Red Wing Bridge. Due to delays on some in-water works in Red Wing, they now expect to start work on the 11th Line Bridge the week of June 29. The 11th Line Bridge is anticipated to remain open while work is completed under the structure, and then the temporary full closure will be put in place once surface work begins. Rehabilitation work on the Red Wing Bridge has been pushed back to September 15 to October 7.
June 12, 2026 - 10th Line culvert complete, Slabtown Bridge rehabilitation continues
Arnott Construction has completed work on the 10th Line culvert. For the week of June 15, they will continue with rehabilitation work on the Slabtown Bridge, including guiderail installation. Single-lane traffic control will be in place for duration of this work. Preliminary work on the Red Wing Bridge is planned for next week as well, including required tree removals. This work will be completed with single-lane traffic restrictions in place in advance of the temporary closure and detour which is tentatively schedule to be in place the week of June 22, 2026.
June 5, 2026 - Remaining work on 10th Line and work beginning on Slabtown Road
Arnott Construction will be continuing with work on the 10th Line culvert until Friday, June 12 to complete installation of the guide rail. They will also be continuing on schedule with rehabilitation work beginning Monday, June 8 on the Slabtown Bridge. Single-lane traffic control will be in place for duration of this work. They may also begin preliminary work on the Red Wing Bridge later next week with single-lane traffic restrictions in place in advance of the temporary closure.

11th Line Bridge

Map showing location of closure and detour route

Anticipated Construction Period: July 16 to August 7

The 11th Line Bridge is a solid slab concrete bridge constructed in 1930. Rehabilitation works are expected to include installation of guardrail, repair and regrading of approach surface and repairs to concrete deck soffit, wing wall and abutments. Recommended detour is via Sideroad 33, 10th Line and Highway 26.

Subscribe for 11th Line Bridge Updates

View 11th Line Bridge Construction Notice

6th Line Bridge

Anticipated Construction Period: July 15 to August 6

The 6th Line Bridge is a concrete rigid frame bridge. Rehabilitation works are expected to include installation of guardrail, clearing of stream bed and repairs to concrete. Recommended detour is via 12th Sideroad, Grey Road 2 and Grey Road 119.

Subscribe for 6th Line Bridge Updates

View 6th Line Bridge Construction Notice

Red Wing Bridge (10th Line)

Map showing location of closure and recommended detour

Anticipated Construction Period: September 15 to October 7

The 10th Line Red Wing Bridge is a concrete rigid frame/arch bridge. Rehabilitation works are expected to include improvements to the guiderails, installation of warning signage and repairs to concrete. Recommended detour is via 10th Line, Sideroad 9, TBM Euphrasia Townline and Grey Road 119.

Subscribe for Red Wing Bridge Updates

View Red Wing Bridge Construction Notice

Other Bridges and Culverts

Rehabilitation works are expected to be completed on four additional structures in 2026. These structures will remain open to traffic with alternating single-lane restrictions.

1. 10th Line Culvert

Anticipated Construction Period: June 1-12 (completed)

The 10th Line Culvert is an elliptical multi-plate corrugated steel pipe. Rehabilitation works are expected to include the installation of a proper guide rail on both approaches and across the structure.

2. Slabtown Bridge

Anticipated Construction Period: June 8-24 (completed)

The Slabtown Bridge is a concrete deck on a prefabricated steel truss bridge. Rehabilitation works are expected to include modifications to the approach guide rail to improve safety.

3. 12th Sideroad Bridge

Anticipated Construction Period: August 17-28

The 12th Sideroad Bridge rehabilitation works are expected to include concrete repairs and installation of a new guide rail.

4. Victoria Corners Bridge

Anticipated Construction Period: August 31 to September 14

The Victoria Corners Bridge is a concrete rigid frame bridge. Rehabilitation works are expected to include repairs to the approaches, installation of signage and improvements to the guide rails.