Fort city council awards bid for the construction of the second phase of a Fort Atkinson wastewater treatment plant
Fort Atkinson city council members on Tuesday approved the award of a $ 13.4 million contract for the construction of the second phase of the city’s wastewater treatment facility.
On the recommendation of staff, council members voted unanimously by roll call to award the offer to Staab Construction Corporation, Marshfield, at a cost of $ 13,385,000. This low bid amount includes an alternative bid of $ 42,000 for the repair and grouting of the primary clarifier floor.
Wastewater Supervisor Paul Christensen informed the board, meeting via Zoom, that, as set out in the installation plan approved by the Wisconsin Department of Natural Resources, the construction of the plant’s phosphorus upgrade to be completed by May 31, 2023.
“The utility must comply with the new phosphorus limits by June 30, 2023,” Christensen said.
Phase I of the construction of this project has been completed, he noted.
“The design for the second phase of construction began in February 2020 and was completed by Donohue & Associates and submitted to Wisconsin DNR in September 2020,” Christensen said. “The design was approved by the state DNR on January 28, 2021.”
The project was advertised for bids in the Daily Jefferson County Union and online on Quest CDN, he said, noting that a mandatory pre-bid conference for interested bidders had been held via Zoom on the 3rd. February. Bids were due on March 4 at 2 p.m.
The opening of the bids went virtually via Zoom, he added, noting that three basic bid proposals were received as follows: Staab Construction Corp., Marshfield, for an amount of $ 13,343,000 ; CD Smith Construction, Fond du Lac, $ 13,637,990.52; and Miron Construction Corp., Neenah, $ 13,743,516.52.
“The estimate of the probable cost of engineers before the tender was $ 15,629,897.50,” Christensen said. “The lowest bid amount was approximately $ 2,287,000, or 14.6%, below the probable construction cost estimate.”
The costs associated with the construction of Phase II, he said, will be funded by a loan from the Clean Water Fund through the State of Wisconsin’s revolving loan program.
“Loans through this program are subsidized at 55% of the market rate,” Christensen said, noting that the interest rate for the Phase II project will likely fall below 2%. “The city received notice of the initial loan approval in November for up to $ 16 million, including $ 1.75 million in loan forgiveness.”
The cancellation of the loan, he explained, is a part of the loan that will not need to be repaid.
“The city also has the option of using the cash available in the utility’s equipment reserve and replacement accounts to pay part of the construction and engineering costs,” Christensen said.
Three alternative elements were included in the tender documents to be added to or deducted from the base offer, he said.
“Utility staff reviewed the alternatives thoroughly and concluded that Alternative # 2 (repairing and grouting the primary clarifier floors) should be accepted for the additional cost of $ 42,000,” Christensen said. “Substitutes n ° 1 and n ° 3 should be rejected. “
In his recommendation letter, Donohue & Associates project engineer Nathan Cassity found that the lowest bidder, Staab Construction Corp., submitted a compliant bid and was a responsible bidder. Staab has already worked for the local utility on three occasions.
A 5 percent contingency of $ 669,000 – required by the Clean Water Fund loan program – has been added to the city’s contract with Staab Construction to cover any unforeseen expenses that may arise. In addition, the City Manager and City Engineer are authorized to approve six change orders of up to $ 10,000 each with a total of up to $ 60,000.
Council members also voted unanimously to approve a negotiated construction related services (CRS) agreement with Donohue & Associates for a not to exceed cost of $ 1,105,515 for construction related services required for phase II of the project.
Christensen said Donohue was retained to complete the utility installation plan, the design of the Phase I and CRS upgrades, and the design of the Phase II of the WWTP update project. waste.
“At the request of the utility, Donohue & Associates provided a proposal for the engineering services required to complete the construction phase of the project,” noted Christensen.
The project, he said, includes the following improvements that will be completed during the 27-month construction period: replacing existing raw sewage crushers with new fine screens and tributary wash presses; rehabilitate the tributary wet well; construct an upstream building above the existing wet well; replace two existing tributary pumps and add a new fourth pump; rehabilitate the two primary clarifiers; and modifications to the aeration basins.
In addition, replace two of the ventilation fans; rehabilitate the two final clarifiers; build a new tertiary filtration installation with chemical conditioning (rapid mixing, coagulation and flocculation), followed by disc filters; improvements in aerobic digesters; and improvements to parts of the HVAC ventilation systems in Building 10.
Training and comprehensive operation and maintenance manuals for various unit processes are also included.
The supervisor said the Phase II construction project costing $ 13,385,000 is to be completed in 810 days.
“The cost of the CRS deal contract is proposed at $ 1,105,515,” noted Christensen. “This cost as a percentage of the total project cost is 8.3% or $ 1,365 per contract day.
“Utility staff will assist Donohue & Associates as needed to control costs,” he said. “It is not uncommon, in a well-managed project, for CRS costs to be lower than the“ not to exceed ”cost. “
Storm water permit
Council members on Tuesday approved the 2020 annual report for the stormwater permit and authorized the appropriate signatures.
City engineer Andy Selle said the report covered the city’s activities in detecting illegal discharges, controlling erosion on construction sites, managing stormwater after construction, monitoring pollution and education and public participation. He said the report had no impact on the stormwater utility’s 2021 budget.
“The report documents our efforts in each category required by the permit,” Selle said. “The Rock River Stormwater Group has engaged Creative Marketing Unlimited, a student-run consulting firm at the University of Wisconsin-Whitewater to manage our public outreach and marketing efforts using both online and online approaches. nobody.
The city, he said, continues to make progress in ensuring that its stormwater entering the Bark and Rock Rivers is as clean as possible.
“We’ve come a long way since we used the river as a conduit for sewage and untreated waste in the early 1900s,” Selle said. “The use of rivers is visibly increasing and they are seen as an asset in our community, a direct result of the city’s efforts and dollars, and certainly a good investment for our community. “
The report was posted on the city’s website and copies have been made available at the Dwight Foster Public Library and in the municipal building for public review and comment, he said, noting that to date , no comments, concerns or questions were raised by the public review of the document.
In other matters, counsel:
• Approval of a request to divide lot zero on two adjacent parcels located at 1509 and 1511 Lena Lane, creating an instrument for two separate owners of a duplex sharing a common wall.
Separate water diversions are needed for individual plots, Selle said, noting that the two diversions are located on the terrace and serve each plot independently.
“The city does not currently require a separate sanitary (sewage) side to serve each unit,” said Selle, noting that this duplex includes a single side shared outside the homes. “The maintenance contract specifically includes this structure with shared maintenance and replacement costs. “
• Approved the change to the description of the liquor license premises of Creamery 201, LLC, a place of celebration, at 201 N. Main St., as follows: The second floor of 201 N. Main St .; the interior elevator / stairwell and private hallway on the first floor leading to an adjacent private patio; and the private outdoor patio depends on adding a chandelier and rope along the northwest edge of the patio to limit access to the sidewalk during events.
Michelle Ebbert, City Clerk / Treasurer / Director of Finance, said the north side of the outdoor patio is covered with heavy landscaping, lattice fence and not visible from the drive-thru of the adjacent business (McDonald’s). And, she said, there is a sidewalk as an escape route from the patio along the east end of Mr. Brew’s Taphouse.
“The expansion of the premises would allow their patrons to use the patio with an alcoholic beverage provided by the private event,” Ebbert said. “Creamery 201 provides bins and recycling containers for this area. “
She said no loud music or dancing would be allowed in the outdoor space and the area should be monitored at all times.