Mahoney Creek Tributary

Project Purpose 

The City of Batavia is working on restoring stream quality throughout the City. This webpage will focus on the project to detain stormwater runoff upstream of the Mahoney Creek Tributary.

As part of the City of Batavia’s efforts to alleviate repeated drainage concerns and flash flooding along the Mahoney Creek Tributary and Mahoney Creek mainstream the City is exploring options to detain excess runoff upstream on a City owned parcel and potentially in an upstream existing drainage easement.  The upstream drainage area in question is generally bound by Wilson Street to the north, Woodland Hills Road to the west, Pine Street to the south and Fermi National Laboratory to the east where the runoff drains from the east under Kirk Road thru the City owned property to the Fox River via Mahoney Creek.

Current Status (May 18, 2022)

This week earthwork has been completed on the west side and most of the large equipment has been removed from the site.  Late last week the trees along the tributary were cleared and the creek was stabilized with seed, blanket and rip rap.  The stone (rip rap) has been placed at all outfalls.  Staking of trees, both on the berm and in the basin, will occur this week and stabilizing the west side will occur starting next week.    Work will commence on the east side of Kirk Road in a few weeks.  

Status (May 5, 2022)

This week rain delayed some work.  Earthwork continued when conditions allowed.  V3 relocated the sanitary sewer in the middle of the basin in order to continue on with the excavation of the remainder of the basin.  In addition you may notice material cut from the bottom of the basin is being temporarily displaced on the sides of the basin until it can be placed in its final location.  This may give the illusion that the berms may be taller now than the finished product.   Earthwork will continue next week along with tree and scrub removal along the Tributary.  This tree removal will allow grading of the creek from the outfall and placement of rip rap to stabilize the creek.  

Status (April 28, 2022)

This week Clean Cut Tree Service was on-site and chipped the trees and hauled them off.  Only the logs remain to be removed.  The earthwork has continued and the basin is starting to take shape.  V3 will be completing the sanitary relocation next in order to continue on with the excavation of the basin and creating the western berm.

Status (April 18, 2022)

This week Clean Cut Tree Service will be on-site to chip the trees in the basin and haul them off.  Weather has altered their scheduled, but they will require at least 2 days on-site for removal and stump grinding. Next V3 will be completing utility work (sanitary relocation) followed by excavation of the basin with earthwork / moving dirt.

Status (April 8, 2022)

Next week Clean Cut Tree Service will be on-site to remove trees at the basin.  Weather pending they are scheduled to be on-site on Tuesday and take approximately 2 days to remove and grind the trees.  Once all trees are removed V3 will be on-site to place the silt and construction fencing.  Next V3 will be completing utility work (sanitary relocation) followed by excavation of the basin with earthwork / moving dirt.   

Status (April 1, 2022)

V3 Construction will install construction entrance and put in erosion control measures on April 1, 2022 in anticipation of tree removal starting the week of April 11th, weather pending.  Army Corps permits have been received today and construction will start shortly after tree removal.  More information regarding construction forthcoming. 

Project Background

The City completed a preliminary investigation and analysis on different scenarios and options for additional detention capacity upstream of the Woodland Hills neighborhood in the fall of 2018. The final report is being used to anticipate the scope of work for Phase 2 final engineering plans.  It should be noted that the 2018 study contemplated expansion of the existing stormwater basin east of Kirk Road as the primary option. Since the time of the initial study the City has finalized its acquisition of parcels west of Kirk Road for the purpose of stormwater management. Through the final design process the City desires to evaluate various different options/alternates to retain runoff on the parcels west of Kirk via a retaining wall, landscaping berm or some other type of structure to be constructed along the westernmost property line. Expansion of the existing stormwater basin will be included as alternate work within the final bid package, depending on the engineer’s estimate of probable costs.

Mahoney Creek Tributary Basin Final Engineering Plans (PDF)

Project Schedule

The anticipated project schedule for design is as follows:

  • City Council Approval                         3/1/21
  • 50% Plan Submittal                            4/12/21
  • 90% Plan Submittal                            5/24/21
  • Final Deliverables Due                        August 2021
  • Present to City Council                        September 2021

The anticipated project schedule for construction is as follows:

  • Plans out to Bid / Bid Opening          December 21, 2021 - January 20, 2022
  • Council Approval                                    February 7, 2022
  • Pre-construction meeting                   February 2022
  • Construction                                            February - October 2022  (total of 60 days)

Project Location

Please see the City’s Capital Improvement Map for limits of the Mahoney Creek Tributary Detention project.

Project Funding 

The study and design of this project was funded through the City Council’s budget allocated to alleviating drainage issues throughout the city.  The construction of the basin will be funded through ARPA (American Rescue Plan Act) funds. 

Contact Information

If you have any questions about the project please email Andrea Podraza or call 630-454-2757.