Friday, 30 January 2026 10:00

New spillway for Turtlehead Creek Dam

Members of the Deloraine community were able to get a first hand look at what the new spillway project will achieve at the Turtlehead Creek Dam.

On Wednesday, January 21, members of Manitoba Transportation and Infrastructure were on hand in the community with information regarding their structural rehabilitation work at the Deloraine Dam, south and east of the town. According to a provincial spokesperson, meetings like this are an essential part of the process.

“MTI engaged with stakeholders throughout the design phase and recently held a public open house in Deloraine on January 21,” the spokesperson stated. “The open house presented the proposed upgrades to the dam, the proposed construction schedule and the benefits of the project. The phased construction plan will minimize short term impacts to the nearby golf course and other nearby properties, while the project provides long-term benefits to the area.”

The work on Turtlehead Creek is estimated to cost $16.8 million. It will include repairs to the low-level conduit of the dam and reconstruction of the spillway. 

“These upgrades will have a minimum service life of 50 years and will improve water security for the area, reduce flooding impacts and improve drainage.”

According to the boards used at the open house supplied by the province, the project began with the detailed design and the ongoing production of construction drawings, starting in 2024 and continuing now. 2025-26 are ongoing meetings with the Municipality of Deloraine Winchester and the Deloraine Golf Club, who will have their course impacted in the short term, as well as landowners.

According to the province, work on the low level conduit began in August 2025, and will continue throughout the winter. More practical work will move in 2026.

Step one is the box culvert replacement in the downstream rail embankment north of the dam. The second step would be to excavate a new channel, east of the existing one. This would also include a new channel crossing, new discharge channel and a concrete spillway. This would replace the current wood spillway, which is old and damaged.

The third phase would be the demolishing of the old spillway and regarding of the existing approach channel.

Explaining the reasoning, the province said the old concrete box culvert (step one) is at the end of its life and a new one would work with the new spillway and protect the railway embankment. The new spillway (step two) is necessary as the old wooden one is deteriorated and unreliable, and a new one would reduce the need for as much maintenance. Removing the old spillway (step three) allows for a safer area and prepares the space for any future development.

As the province explained, their discussions with impacted groups mean that both landowners in the area and the nearby golf course will be impacted as little as possible by the project. The new work once completed will reduce flooding impacts, improve drainage and wildlife habitat, while saving money long term on repairs.

Although plans are for the heavy-duty construction work to begin this year, it is subject to regulatory approval. If all goes well, the plan is for everything to be completed and online in two years time.

by PAUL RAYNER, Recorder staff

 

Read 172 times Last modified on Thursday, 29 January 2026 15:59