4th Avenue Flyover Rehabilitation
About the project
The 4th Avenue flyover was built in 1982. This flyover carries two lanes of traffic towards 3rd Street S.E. As one of the main routes into downtown, the overall structure spans 430-meters crossing over the Bow River.
We plan to improve this flyover. Construction is likely to start in 2024, pending all necessary provincial and federal permits and approvals. Ongoing regular maintenance together with timely major improvements are important to keep bridges/flyovers safe and reliable, while minimizing future costs. This work also helps to extend the service life of these structures.
Scope of work
The project scope of work includes:
- rebuilding existing concrete barriers and adding lighting
- replacing existing concrete paving overlay with a polymer modified asphalt (PMA) overlay
- replacing existing expansion joints, and other general concrete repairs across the structure
The project benefits include:
- improving the condition of the flyover, including clarity by adding streetlights
- extending the service life of the flyover by roughly 35 years
- improving one critical link in the transportation network to help with Calgary's continued growth in the coming years
- Design Completion: 2023
- Tender to Market:
- Construction Start:
Anticipated - spring 2024
- Construction Completion: Anticipated - late fall 2025
Construction activities are dependent on several factors. Timelines may change due to inclement weather, complexity, supply chain, and/or other unexpected circumstances.
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Frequently asked questions (FAQs)
Ongoing regular maintenance along with timely major rehabilitations are important to keep bridges/flyovers safe and reliable, while minimizing future costs and extending the service life of this type of structure. The project should greatly improve one critical link in the transportation network. These types of improvements help with Calgary's continued growth in the coming decades.
Estimated Budget: $12.5 million