HomeMy WebLinkAboutA001 - Council Action Form dated December 10, 2024ITEM #:35
DATE:12-10-24
DEPT:PW
SUBJECT:FY 2019/20 STORM WATER EROSION CONTROL PROGRAM (IOWAY
CREEK - 6TH TO 13TH ST)
COUNCIL ACTION FORM
BACKGROUND:
The Storm Water Erosion Control program provides for stabilization of areas that have become eroded
in streams, channels, swales, gullies, or drainage ways that are part of the stormwater system. This
program provides a more permanent control of the erosion and will reduce recurring
maintenance costs in these areas.
The location for this project is Ioway Creek from 6th Street to 13th Street through Brookside
Park. The stream banks have continued to erode, threatening a shared use path along the west stream
bank and neighboring residential properties on the east bluff. The project will relocate 500' of the creek
away from the eroding east slope providing a flatter and more stable slope, add a water quality oxbow
treatment, stabilize stream banks, and improve proper stream flow functioning. The site will be
revegetated with native landscaping including trees and shrubs on the east slope.
There is a base bid and two add alternates: a north add alternates for in-stream work between 13th
Street and the northern pedestrian bridge, and a south add alternate for in-stream work from 6th Street
to the southern pedestrian bridge.
On December 3, 2024 bids for the project were received as follows:
Bidder Base Bid
North Alternate -
13th St. to N. Ped.
Bridge
South Alternate -
6th St. to S. Ped
Bridge
Total Base Bid and
North and South
Alternates
Engineer's Estimate $1,549,153.00 $97,600.00 $212,200.00 $1,858,953.00
Iowa Earth Works $1,391,153.00 $124,200.00 $172,080.00 $1,687,433.00
Con-Struct Inc.$1,487,717.00 $102,000.00 $199,400.00 $1,789,117.00
RW Excavating
Solutions, LC $1,566,471.65 $229,200.00 $385,200.00 $2,180,871.65
Reilly Construction
Co., Inc $2,197,899.25 $201,000.00 $249,900.00 $2,648,799.25
The alternates were added to ensure that if construction bids came in above the engineer's estimate, a
project with the base bid could be awarded by the end of the year to avoid the risk of losing IFA Water
Infrastructure Funding that is available for this project. This funding source requires that a construction
contract be executed by December 31, 2024.
Sufficient funding is available to award the base bid plus both alternates. The table below shows the
revenue and expenses for this project:
1
Funding Source Available Revenue Estimated Expenses
2019/20 Stormwater Erosion Control
Program (Stormwater Utility Fund)$432,000
State Revolving Fund $300,000
IDALS Water Quality Initiative $100,000
IFA Water Infrastructure Fund $500,000
Previous CIP Savings (Stormwater
Utility Fund)$736,000
Anonymous Donation $ 90,000
Construction (Base Bid and North and
South Alternates) $ 1,687,433
Engineering/Administration _________$ 324,000
Total $ 2,158,000 $ 2,011,433
PUBLIC & PARTNER OUTREACH:
Three outreach meetings were held in 2021 to receive property owner, stakeholder and public feedback.
Staff, consultants, and outside experts (IDNR) reviewed the feedback and then prepared and presented a
second alternative design to the public through three more public meetings in spring 2022. In addition,
over the last two years, staff has had ongoing discussions with the adjoining property owners as part of
the easement acquisition process. Staff also worked closely with the U.S. Fish and Wildlife Service to
establish construction timing around the Indiana Bat and the Rusty Patched Bumble Bee. The U.S. Fish
and Wildlife Service determined that construction timing should avoid the winter bee nesting period. A
final public meeting was held on October 9, 2024 to present 90% design plans and the upcoming
construction schedule with a favorable response from the public. Outreach will continue prior to and
during construction through various methods including signage in the park and social media to inform
the public of the project schedule.
Additionally, prior to bidding, staff held a joint meeting with the Iowa Department of Natural Resources
and the U.S. Army Corps of Engineers to review construction phasing and ensure all relevant agencies
remain aligned regarding the expectations for construction within the waterway.
ALTERNATIVES:
1. The City Council can approve the following:
a. Accept the report of bids for the 2019/20 Storm Water Erosion Control Program (Ioway Creek-
6th Street to 13th Street).
b. Approve the final plans and specifications for this project.
c. Award the 2019/20 Storm Water Erosion Control Program (Ioway Creek-6th Street to 13th
Street) to Iowa Earth Works in the amount of $1,687,433 for the base bid and the north and south
alternates.
2. Award the contract to one of the other bidders.
3. Do not proceed with this contract.
CITY MANAGER'S RECOMMENDED ACTION:
2
Approving these plans and specifications will stabilize the stream banks, restore stream function of
Ioway Creek, and protect storm sewer and pedestrian infrastructure within Brookside Park. Therefore,
it is the recommendation of the City Manager that the City Council adopt Alternative No. 1, as
described above.
ATTACHMENT(S):
Ioway Creek Brookside A.03.pdf
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