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Completed Projects
Harrison Street Stormwater Improvement Project (Yorkfield Subdivision)
Creating additional flood storage in the existing detention basin located south of Harrison Street, in conjunction with the construction of a relief sewer, would significantly reduce the risk of flooding for homes in Yorkfield Subdivision. The existing detention basin is a dry-bottomed facility with a capacity of approximately 8 acre-feet. During small storm events, a 1-Estimated Construction Start: Fall 2016
Estimated Construction Completion: Summer 2017
Estimated Budget: $2,394,077
Yorkfield Subdivision Fact Sheet
Yorkfield Subdivision Project Updates
Madison Early Childhood Education Center Stormwater Improvement Project
Creating flood storage in the open space area adjacent to the Madison Early Childhood Education Center would significantly reduce the risk of flooding for the Washington Street flood problem area in Southwest Elmhurst. The goal of this project is to provide a location to safely hold stormwater while maintaining the existing recreational uses of the school site.Conceptual facility improvement plans were developed with the intent of creating flood storage while maintaining the existing soccer field in this location. To maximize playability of the fields, stormwater would not be diverted
Estimated Construction Start: Summer 2016
Estimated Construction Completion: Spring 2017
Estimated Budget: $3,584,950
Madison Early Childhood Education Center Fact Sheet
Madison Early Childhood Education Center Project Updates
Washington Street Stormwater Improvement Project
In an effort to further reduce the level of flooding on Washington Street, the City has purchased and removed 3 houses at 684, 688 and 692 S. Washington Street for the purpose of providing up to 3 acre-feet of stormwater detention. This detention, when combined with the on-going Madison Early Childhood Stormwater Improvement Project, will provide a total of 9.25 acre-feet of stormwater detention and will provide significant flood reductions benefits for residents on Bryan, Washington, and Euclid. The construction of this project will involve the installation of an underground pre-cast concrete vault by StormTrap, LLC. Work began in late March of 2017 and is scheduled to last 3-4 months.
Estimated Construction Start: March 2017
Estimated Construction Completion: Fall 2017
Estimated Budget: $1,264,330
Washington Street Stormwater Improvement Project Updates
Golden Meadows (Pine/Avon)
Creating flood storage in the open space area of Golden Meadows Park in conjunction with the construction of relief sewers would significantly reduce the risk of flooding for the homes in the Pine Street/Avon Avenue. The goal of this project is to provide a location to safely hold stormwater while maintaining the existing recreational uses of the park.
To maximize playability of the fields, stormwater would not be diverted into the park unless the capacity of the existing storm sewer system is exceeded. Less frequent, non-flood causing events would not impact the park, as stormwater would bypass the area. During significant storm events, pipes would divert water away from the flood-prone areas and convey it into Golden Meadows Park. The park is designed to completely fill for the 100-year design storm event; stormwater would be held temporarily at the site and then drain by gravity to the existing storm sewer system. Period of inundation would be less than 24 hours.
Estimated Construction Start:
Estimated Construction Completion:
Estimated Budget: $3,602,375
Golden Meadows Fact Sheet
Golden Meadows Project Updates
Crescent Ave/ Cambridge Ave Stormwater Improvement Project (York Commons)
Creating flood storage in the open space portions of York Commons Park would significantly reduce the risk of flooding in three of Southwest Elmhurst’s flood-prone areas, specifically: Crescent Avenue, Washington Street, and Swain Avenue/ Vallette Street.
Estimated Construction Start: Summer 2016
Estimated Construction Completion: May 2017
Estimated Budget: $2,2108,151
York Commons Fact Sheet
Crescent Ave/Cambridge Ave (York Commons) Project Updates
Letter from Elmhurst Park District to City of Elmhurst -Use of Valve 01/29/16
York/I-290 Stormwater Improvement Project
Creating additional flood storage in the existing detention basins located at the intersection of York Street and I-290, in conjunction with the construction of relief sewers, would significantly reduce the risk of flooding for homes along Larch Avenue and Addison Avenue. Additionally, the expansion of the flood storage area would reduce the roadway flooding that makes York Street impassable during severe storm events.
The existing detention basins located at the intersection of York Street and I-290 have an approximately 10-year capacity. For storm events that exceed a 10-year frequency, the detention basins will overflow, resulting in significant roadway flooding and road closures in this location. The goal of this project is to improve the function of the existing drainage system by increasing both the capacity of the existing pipe system and the capacity of the existing detention basin. Conveyance improvements, in conjunction with the creation of additional flood storage volume, would provide valuable flood-reductions benefits to the Larch Avenue and York Street flood problem areas. Relief sewers would be constructed that
Estimated Construction Start: Fall 2016
Estimated Construction Completion: July 2017
Estimated Budget: $1,340,000
York/I-290 Fact Sheet
York/I-290 Project Updates
Police Station Rain Garden
The Project Involves the construction and maintenance of a rain garden, sized between 800 and 1,200 square feet, to include an engineered soil mix to promote infiltration, as well as a variety of native shrubs, grasses, and forbs, immediately south of the Police Station. The goal is to reduce the runoff of pollutants, such as suspended solids, metals, and nutrients, which eventually flow into Salt Creek. Two of the downspouts from the Police Station roof will be redirected from the storm sewer into this rain garden. The City was awarded a DuPage County Water Quality Improvement Program grant for a portion of this demonstration rain garden. Installation is scheduled for Spring of 2017.
Police Station Rain Garden Conceptual Drawing
Walnut-Myrtle-Evergreen Stormwater Improvement Project
This project will entail the construction of a series of storm sewers pipes along various streets and a drainage outfall to the Elmhurst Quarry to provide overland flood relief in the Walnut/Myrtle/Evergreen flood problem area, which is located adjacent to the quarry in the northwest corner of the City.Estimated Construction Completion: Fall 2016
Estimated Cost: $4,856,801
Walnut-Myrtle-Evergreen Project Updates

Webster Ave Stormwater Improvement Project
This major stormwater improvement project will include converting the existing open space located south of St. Charles Road, and east of and Fair Avenue, into a detention basin with 2.2 acre-feet of storage. This work will also include storm sewer piping improvements at the intersection of Fair Avenue and Webster Avenue, and on Fair Avenue north of the intersection. These piping improvements will increase the ability of the storm sewer system to carry water to the detention basin before overland flooding gets to the low point of Webster Avenue. At the intersection the existing inlets will be replaced with larger diameter structures, additional drainage structures will be added, and all curb-line drainage structures will have directional grates intended to capture additional stormwater. Additionally, a parallel oversized storm sewer will be installed on Fair Avenue to connect the new drainage structures to the new detention basin.
The storm sewer improvements are designed to drain stormwater into the detention basin in heavy rainfall events only. Light rain events will continue to be conveyed by the existing storm sewer system and not enter the detention basin.
Construction Start: November 2015
Estimated Construction Completion: Spring 2016
Estimated Cost: $281,010
Webster Ave Project Updates

York & Palmer Underground Stormwater Detention Project
At the intersection of York Street and Robert Palmer Drive in downtown Elmhurst, the City installed a StormTrap underground detention system. This concrete vault, measuring approximately 30’ x 69’, will provide approximately 0.21 acre-feet of stormwater detention. Following the installation of the stormwater detention system, the parking lot was repaved with a new asphalt surface. This parking lot provides approximately 47 3-hour shopper parking spaces for people to patronize the downtown merchants.
Estimated Construction Start:
Estimated Construction Completion:
Estimated Cost: $

Geneva Ave Stormwater Improvement Project
Status: Site use has been rejected by Park District- Per Discussion at Park Board meeting on 2/10/16, the Park District is not in favor of the City's current proposal to approach the Illinois Department of Natural Resources about using the portions of the property for stormwater detention. See Park District Board Meeting Minutes & Audio for more information (East End Park discussion begins at approximately 25:45 minutes). As an Creating flood storage in the open space area in East End Park in conjunction with the construction of relief sewers would significantly reduce the risk of flooding for the homes in the Geneva Avenue flood problem area in Elmhurst.
Estimated Construction Start: September 2016
Estimated Construction Completion: December 2016
Estimated Cost: $841,000
East End Park Fact Sheet
Geneva Avenue Project Updates
Letter to Park District regarding use of land 01 13 2016