Bow River Bridge
Cochrane's new bridge across the Bow River located near the SLS Family Recreation Center started construction in August 2018. The new bridge and the arterial road connections will also include on-street bike lanes and a separated, parallel 3 metre-wide multi-use pathway that connects with Cochrane’s existing pathway system. See the video rendering here.
Council voted April 8, 2019 to approve Jack Tennant Memorial Bridge as the name of Cochrane’s new bridge.
- Find out about the public enagagement process: LetsTalkCochrane.ca/Bridge.
- Starting August 7, 2018, a portion of the north end of Jim Uffelmann Memorial Park across from SLS Family Sports Centre will be closed to facilitate construction and connection to Griffin Road. Pathway users can use the paved detour around the construction site. There will likely be short disruptions while work is underway.
Map of detour and closed area.
- Information update gravel pit relocation
- Construction updates for the bridge and all Town projects.
- Construction videos
Click for larger image.
|This map shows the general location of the new bridge and alignment of the proposed James Walker Trail corridor (alignment will be finalized as part of the ongoing detailed design).|
The bridge is being designed as a three-span bridge with a single pier in the river, and the second pier adjacent to the river. The outer spans will be about 51m (165 ft) each with the central span being about 58m (190 ft). The piers have been designed with two columns to improve visibility for users beneath the bridge and the overall bridge aesthetics.
|Click for larger image.||Conceptual rendering of the bridge at its actual location and design elevation.|
|Click for larger image.|
Conceptual illustration of the bridge design. In addition to two traffic lanes, the bridge includes bike lanes and a separated, 3 metre-wide multi-use pathway. A large lookout area above the eastern pier can be used to by cyclists and pedestrians to enjoy the view of the river.
Once construction of the bridge is complete, the beach and multi-use pathway under the bridge will be re-opened.
|Click for larger image.||The south side of the Bow River is experiencing significant changes: stripping and grading for Precedence (new community), the start of bridge construction, the relocation of gravel pit operations and preparation for the new gravel extraction area.|
Groundbreaking July 9, 2018
(l-r): Coun. McFadden, Bearspaw elder Irene Baptiste of Stoney Nakoda First Nation, Coun Nagel, Banff-Cochrane MLA Westhead, Coun Reed, Mayor Genung, Coun Wilson, Tsuut’ina spiritual spiritual leader Hal Eagletail, Coun Fedeyko, Coun Flowers.
Aug 24, 2018
Start of construction of the in-river berm that will be used as a construction platform for the east pier of the bridge.
Sep 5, 2018
Construction of the temporary berm is complete (approx. 9500 m3 of cobbles). The berm will be used as a construction platform for the bridge piers and will be completely removed in summer of 2019 so the gravel beach can be reestablished.
Oct 1, 2018
Things are getting busy at the bridge with the start of construction of the in-river pier foundations. The foundations for each pier consist of eight drilled-shaft, cast-in-place concrete piles that are about 1.2m (4ft) in diameter and up to 13m (43ft) long. The cut for the east abutment on the far side of the river is also advancing with a further 4 m of cut to go.
Oct 3, 2018
The first concrete for Cochrane's new bridge was poured on October 3, 2018 at 2:30pm.
Oct 11, 2018
Oct 26, 2018
This image is from a 3D model of the bridge construction site generated with drone-based orthographic photogrammetry. The Town and their construction partner, PCL Construction, are using PCL’s Unmanned Aerial Vehicle (UAV) program to survey the James Walker Trail and Bow River Bridge project to track earthworks cut and fill volumes. The UAV survey achieves accuracies of +/- 1cm, which is comparable to traditional ground surveys but completed in a fraction of the time. PCL uses a Matrice 210 UAV from DJI and SiteScan cloud platform from 3D Robotics, Inc. (3DR) to process the imagery into the 3D model.
NOV 9, 2018
This photo shows the locations of the four bridge foundations. The orange tarps at the bottom right are at the completed west abutment foundations; the yellow drill rig is drilling the foundations for the west pier; the white drill rig is working on the sheet pile cofferdam at the east pier pile cap, and the snow-covered platform in the top left (far side of the river) is the location of the east abutment.
Credit: Bill Marsh Photography
Nov 20, 2018
Drilling for the east abutment foundations on the far side of the river started Monday. These are the last 7 of 30 drilled shafts to be constructed for the bridge. The form work for the west abutment also began Monday, allowing for some above-ground construction this week. Credit to Bill Marsh Photography.
Nov 30, 2018
The west abutment formwork and rebar are finished and ready for the first above-ground concrete pour. About 80 cubic meters of concrete will be used in each of the abutments. The alternating circular spots under the rebar are the drilled shaft foundations extending into the abutment.