Project Information

Bid Title

Mastodon Lake Dredging

Issuing Agency

City of Aurora

Location

Illinois

Published Date

Jan 4, 2026

Closing Date

Jan 27, 2026

Government Level

State & Local

Status

Closed

Original Source

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Bid Documents

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Project Description

Project ID:

Title: Mastodon Lake Dredging

Addenda: 2

Release Date: 12/19/2025

Due Date: 1/27/2026

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Mastodon Lake Dredging

Last updated by Addendum #2 on Jan 3, 2026 2:58 AM See what changed

Invitation For Bid

Engineering

76016 , 96834

Project ID: 25-231

Release Date: Friday, December 19, 2025

· Due Date: Tuesday, January 27, 2026 11:00am

Posted Friday, December 19, 2025 10:00am

All dates & times in Central Time

Draft Response No Bid22 days, 15 hours, 20 minutes

Post Information

Posted At:Fri, Dec 19, 2025 10:00 AM
Sealed Bid Process:Yes (Bids Sealed / Pricing Sealed)
Private Bid:No

Overview

Summary

The City of Aurora, IL is seeking a qualified contractor for the dredging of Mastodon Lake. This project includes the of dredging of the accumulated sediment from 23-acre Mastodon Lake using hydraulic dredging methods, dewatering and hauling of dredged materials, installation of mechanical mixing and aeration devices, installation of culvert pipes, as well as other miscellaneous appurtenances all in accordance with the plans and specifications.

Background

Phillips Park is considered the jewel of the community. Mastodon Lake, which is in Phillips Park, provides stormwater detention and is used by boaters, anglers and bird watchers and admired by park visitors. However, the Lake has developed an issue with excessive aquatic vegetation which is reducing the aesthetic appeal and negatively impacting the water quality of the Lake.

The City is requesting that bidders provide a proposal for completing the work outlined within the base bid for the improvements included in the plans. The base bid includes the hydraulic dredging of materials and dewatering in up to five locations (Sites 1-5) along the lake within City owned property.

A bid alternative has been identified in the plans that would provide the contractor with the ability to utilize the open space west of the lake (Site 6) to dewater the dredged materials. This Site 6 property is not City owned. The City is working with the property owner to obtain permission to use this area, dewatering in the location identified as a bid alternative is not guaranteed to be available for dewatering.

The intent of the project is to dredge a total of 50,000 cubic yards of wet material from the lake. This volume may be fully dewatered within the Sites 1-5 identified in the based bid, fully dewatered in the bid alternative location (Site 6), or a mixture of the base bid (Sites 1-5) and bid alternative (Site 6) locations. The City may subtract quantities or remove dewatering sites from the base bid if the bid alterative is accepted. The City shall have the right to reject the bid alternative option at their choosing.

Since the City has also published a separate bid for Shoreline Stabilization, the awarded contractors may be required to work concurrently onsite.

Timeline

Release Project Date:

December 19, 2025

Question Submission Deadline:

January 15, 2026, 10:00am

Response Submission Deadline:

January 27, 2026, 11:00am

Commodity Codes

• NAICS 237990Other Heavy and Civil Engineering Construction

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