A multi-million-dollar infrastructure expansion and improvement project is anticipated to begin later this fall after the Dyersville City Council approved the plans, specifications and engineer’s estimates for the Southeast Collection System Diversion 2019 project during Monday’s meeting.
While the average consumer likely won’t notice a difference in service, City Administrator Mick Michel said this project amounts to a substantial improvement behind the scenes, especially when considering operations during flooding events and servicing new growth on the outskirts of town.
“Everything from Highway 136 toward the east along with Hageman subdivision will be served by this pumping station,” Michel said. “It will go directly to the wastewater treatment plant versus going down 15th Avenue.”
Marc Ruden, a municipal engineer and project manager from IIW, said the project will consist of approximately 1,900 feet of 12-inch pipe, 1,600 of 15-inch and 840 feet of 24-inch gravity sewer. Additionally, the project includes 4,100 feet of 10-inch force-main sanitary sewer and two sanitary sewer triplex pumping stations — one with three 25-horsepower 750 gallon-per-minute pumps and the other three 10-horsepower 950-gallon-per-minute pumps.
The project also includes 9,500 feet of twin two-inch fiber optic conduits for the controls associated with the project.
Michel said during flooding events, a significant amount of water pours into the wastewater treatment plant, but with the new infrastructure, city staff can divert the flow of some of that water.
“It will also allow us to continue to operate without causing additional backups during flooding events,” Michel said.
The additional capacity afforded by the new infrastructure will also allow the City to expand its boundaries in the future, as it will accommodate more residential and industrial development along with the expansion of services toward the east.
Bidding for the project will begin Sept. 10 and Ruden said there are a lot of “hungry” contractors right now so he’s anticipating some good bids.
“I would imagine construction could start sometime in October,” Ruden said.
Ruden said there will be very little traffic interference as a result of the project — there will be some concrete barriers along US 20 where the boring equipment will be staged and the Hwy 136 crossing will have some similar safety barriers.
As for one of the most important factors, cost, Michel said staff is anticipating no difference in the city’s levy rate as the first phases of the Wastewater Treatment project will be paid off around the time this project is operational.
The cost estimate is $2.22 million and will be financed by State Revolving Fund (SRF) dollars. The project could be awarded by the council as soon as Oct. 16.
In other news, the council:
• Accepted the resignation of part-time police officer Tyler Hunt and approved the hiring of certified part-time officer Kyle Howe.
• Heard from Michel that of the 171 Ash trees located on city-owned property or city right-of-way, only 28 are considered to be in healthy condition. The council is looking at treating the 28 trees to combat the Emerald Ash Borer, but Michel said it is just delaying the inevitable, adding it is basically putting those trees on life support.
• Heard the Puppy Paddle/Doggie Dip at the aquatic center had a little over 30 dogs participate.
• Officers for the James Kennedy Public Library for the fiscal year 2020 are President Mary Jane Meade, Vice President Karen Kramer and Secretary Catherine O’Hea.