Honourable chairman and members of the committee, as we begin today, I would like to acknowledge that the land the MD of Taber is on and the lands in the projects I'm going to describe today are Treaty 7 lands. I acknowledge those whose ancestors walked and lived on this land.
We would also like to acknowledge that as part of the process with the Impact Assessment Agency of Canada, we have had to have consultations with numerous indigenous groups regarding the Horsefly emergency spillway, which I'm going to try to describe here today.
I believe your discussion today is around emergency preparedness. I want to thank my own MP, Mr. Martin Shields, MP for the Bow River riding, who has invited me to explain what the Southern Regional Stormwater Drainage Committee is doing to prepare for emergencies.
In 2010, southern Alberta experienced a one-in-a-hundred-years rain event in both the eastern and the western portions of the province. In 2011, while the rainfall amounts were less than what we experienced in 2010, there was significant flooding in many hectares or acres of land. These events led to the discussion between the reeve of the municipal district and the chairman of the St. Mary River Irrigation District on how the main canal of the irrigation district could be used as a conduit to move this excess water off farmland and minimize the effects of flooding.
As you might know, an irrigation district is designed to deliver water to farmland and not as a means to accept flood waters. Irrigation canals get smaller as they move east, as they deliver water to farms along the way. Drainage canals need to get bigger as they move east to accept more drainage water.
A quick example of the size and amount of water that's carried in this canal is where the canal leaves the Chin Reservoir, southwest of Taber. It has a capacity of about 110 cubic metres per second, or roughly 29,000 gallons of water per second. When the canal reaches west of Medicine Hat, Alberta, its capacity has been reduced to about 8.5 cubic metres per second, or about 2,000 gallons per second, so the canal significantly decreases in size over that 250-kilometre stretch of main canal.
The Municipal District of Taber spearheaded the drainage project and brought onside the counties of Lethbridge, Warner, Cardston, 40 Mile and Cypress, as well as the towns of Taber, Coaldale and Bow Island, the city of Medicine Hat, the St. Mary River Irrigation District and Taber Irrigation District, Alberta Environment and Parks, Alberta Transportation and Alberta Agriculture. This has been the makeup of our committee since 2013.
The committee was able to secure funding to do a regional drainage study for the area, which encompasses over two million acres of land. Over 500,000 acres of that land in the study area is very high-value, irrigated land, producing diverse crops such as potatoes, sugar beets, seed canola, alfalfa, timothy hay, vegetables and numerous other specialty crops that are the economic engine of southern Alberta.
The study was completed in 2014 and identified seven projects that would help reduce the flooding risks in the area. The total cost for all of the projects in 2014 dollars was about $152 million. With inflation and so on, the estimated cost for all seven projects is now about $169 million.
The Horsefly emergency spillway was identified as a top project to start with, at a point about 10 miles southeast of the town of Taber. The St. Mary River Irrigation District main canal is closest to the Oldman River, a place where the excess drainage water can be returned to a natural river basin.
Also at this point on the main canal is the first downsizing in the canal since leaving the Stafford Reservoir, south of Chin, Alberta. The capacity at this point is 110 cubic metres per second, and the plan is to divert about 47 cubic metres per second out of the main canal and into the diversion or spillway. This will leave the main canal able to pick up more drainage water as the canal continues eastward.
In reality, this project has two purposes. The first is to drain flood waters off private land, using the SMRID main canal as the delivery method. The second is to protect the St. Mary River Irrigation District main canal from a breach or a washout by diverting the excess water back to the river.
This main canal is the lifeblood of southern Alberta irrigated agriculture. Economic devastation would happen if the canal's ability to deliver water was lost for a growing season, or even part of a growing season.
Again, the two purposes of the project are to drain flood water off the land and to protect the main canal's ability to deliver irrigation water in an efficient and timely manner.
In the spring of 2018, we had another flooding event. There was a lot of snow over the winter and a quick melt. We almost lost the main canal. It was almost breached by the volume of flood waters entering that main canal. It was the worst overland flooding that the MD of Taber had ever experienced. We were in a state of local emergency for 50 days due to the flooding.
A call for tenders for phase 1 of this project has now been put out. That closes on October 13 of this year, and we still hope to get construction started this year. Phases 2 and 3 of the project are in the engineering design stages, and we hope to get those tendered and constructed starting next year.
I'm sure that I'm over my five minutes already, so I would take questions anywhere along the line.