# DUTCH GAP AQUATIC ECOSYSTEM RESTORATION, ANTIOCH, LAKE COUNTY, ILLINOIS Canonical: https://abierto.us/opportunities/w912p626ba001 - Solicitation number: W912P626BA001 - Notice type: Award notice (first published as solicitation) - Status: Awarded to HGS LLC for $9,503,303.38 - Department: Department of the Army - Agency: Department of the Army - Contracting office: W072 Endist Chicago (W912P6) - NAICS: 237990 Other Heavy and Civil Engineering Construction - Product or service code: Y1QA Construction Of Restoration Of Real Property (Public Or Private) - County: Lake County (FIPS 17097). https://abierto.us/counties/lake-county-il-17097 - City: Antioch. https://abierto.us/cities/antioch-il-1701595 - First posted: December 15, 2025 - Last posted: April 22, 2026 - SAM.gov: https://sam.gov/workspace/contract/opp/d4b860996b0241868ad343ce9b163555/view ## Description ** EFFECTIVE JANUARY 21, 2026: The government has posted Amendment No. 0004 hereunder this Notice (please refer to the Attachments Section). **EFFECTIVE JANUARY 13, 2026:** The government has posted Amendment No. 0003 hereunder this Notice (please refer to the Attachments Section). Important Notice Regarding ProjNet Access for Solicitation W912P626BA001 It has come to our attention that some users may experience difficulties accessing the ProjNet website at projnet.org to submit questions regarding this solicitation. Our agency is aware of this technical issue and is actively working on a solution. In the meantime, vendors may access the ProjNet portal and submit questions using the following direct link: https://www.projnet.org/ProjNet/binKornHome/index.cfm. We apologize for any inconvenience this may cause and appreciate your continued interest in this U.S. Army Corps of Engineers (USACE) opportunity. **EFFECTIVE JANUARY 8, 2026:** The government has posted Amendment No. 0002 hereunder this Notice (please refer to the Attachments Section). **EFFECTIVE DECEMBER 31, 2025:** The government has posted Amendment No. 0001 hereunder this Notice (please refer to the Attachments Section). ATTENTION TO BIDDERS PROJECT SITE VISIT JANUARY 7, 2026 A pre-bid meeting and project site visit is scheduled for Wednesday, January 7, 2026, at 10:00 a.m. (Central Time). Interested contractors are to meet at location: Antioch, Illinois (42.480567, -88.004898), and must be supervised by USACE and the non-Federal sponsor. PROJECT SITE VISIT JANUARY 7, 2025 An amendment is forthcoming to incorporate the updated pre-bid meeting information. This Solicitation Notice, relates to Pre-Solicitation W912P625BA003, and is being issued by the United States Army Corps of Engineers - Chicago District for Dutch Gap Aquatic Ecosystem Restoration, Antioch, Lake County, Illinois. **PROJECT DESCRIPTION: The Dutch Gap Aquatic Complex, IL - Sec. 206 project spans 785-acres in Antioch, Lake County, Illinois, on land owned by Lake County Forest Preserves: restore stream, riparian, wetland, and buffering plant communities to provide habitat for migratory birds and local fish and wildlife. Restoration of aquatic ecosystems within the project area will reestablish hydroperiods and other hydrologic and hydraulic parameters to rehydrate former hydric soils to support critical wetland and riparian habitats. It will also reestablish native plant communities that will further diversify over time, resulting in greater quantity (acres) and quality of native plant communities. **Background: Intensive agriculture has led to the installation of drain tile networks, excavation of drainage ditches, and stream channelization, impacting natural hydrologic and other processes. Such impacts have enhanced flooding risks, minimized the amount of open space available for native plant and wildlife communities, diminished recreational opportunities, and disturbed natural processes and soils in the project area. The project area is further dominated by non-native and invasive plant species. **ACQUISITION INFORMATION: Competition for this acquisition is planned to be FULL AND OPEN, UNRESTRICTED TO BUSINESS SIZE. The North American Industry System Classification Code is 237990, with a small business size standard in dollars of $45.0 Million. The magnitude of cost for construction is estimated between $5,000,000.00 and $10,000,000. The requirement is for five (5) years. Responses to this solicitation are due 2:00 p.m. (Central Time) on January 14, 2026. **The solicitation is downloadable from the internet only. The project specification files are PDF files and can be viewed, navigated, or printed using Adobe Acrobat Reader. Once the package is released into advertisement at this website, interested bidders may download the full package, which includes- specification and drawing files. **IMPORTANT POLICY: Contractors are REQUIRED to be registered in the System for Award Management (SAM) AT THE TIME ITS BID/PROPOSAL IS SUBMITTED to comply with the annual representations and certifications requirements. Registration can be completed free of charge at www.sam.gov. Contractors must register with sam.gov, prior to registering with the DoD Procurement Integrated Enterprise Environment (PIEE) system. Your firm must register with PIEE in order to access the solicitation and to place a bid/proposal in response to the upcoming USACE Solicitation. Use the PIEE System Registration link: ? https://piee.eb.mil and follow the instructions on their website. Request for Solicitation packages made by telephone, fax, or e-mail will not be honored. **The Point of Contract for this acquisition is Ericka Hillard at ericka.d.hillard@usace.army.mil. **Please include Solicitation number W912P626BA001 on all correspondence. ** ## Award on USAspending - Recipient: HGS LLC (UEI JK37JDJSXJR5) - Contract: W912P626CA008, definitive contract - Obligated: $9,503,303.38 - Competition: Full and Open Competition, 5 offers received - Link: award number W912P626CA008 equals the contract number; same awarding office W912P6 (high confidence) - Record: https://www.usaspending.gov/award/CONT_AWD_W912P626CA008_9700_-NONE-_-NONE-/ ## Publications - December 15, 2025: Solicitation, due January 14, 2026 at 3:00 PM EST. Notice 984fbdade83e4d389f97c2f4e146cd3e. https://sam.gov/workspace/contract/opp/984fbdade83e4d389f97c2f4e146cd3e/view - December 17, 2025: Solicitation, due January 14, 2026 at 3:00 PM EST. Notice 518ba136b5984da193b96cf6eeabac04. https://sam.gov/workspace/contract/opp/518ba136b5984da193b96cf6eeabac04/view - December 31, 2025: Solicitation, due January 23, 2026 at 3:00 PM EST. Notice 743fac97971a4d9495fbef560d24f8cb. https://sam.gov/workspace/contract/opp/743fac97971a4d9495fbef560d24f8cb/view - January 8, 2026: Solicitation, due January 23, 2026 at 3:00 PM EST. Notice 0c6123b7650a426eb432cf10fdf9d1be. https://sam.gov/workspace/contract/opp/0c6123b7650a426eb432cf10fdf9d1be/view - January 12, 2026: Solicitation, due January 23, 2026 at 3:00 PM EST. Notice 5281037c916c47bc93707db0a53c5ac8. https://sam.gov/workspace/contract/opp/5281037c916c47bc93707db0a53c5ac8/view - January 13, 2026: Solicitation, due January 23, 2026 at 3:00 PM EST. Notice b488e468567341669413b88409459f5e. https://sam.gov/workspace/contract/opp/b488e468567341669413b88409459f5e/view - January 16, 2026: Solicitation, due January 23, 2026 at 3:00 PM EST. Notice 749fdf7ee1fc4cf99aadb339353f9164. https://sam.gov/workspace/contract/opp/749fdf7ee1fc4cf99aadb339353f9164/view - January 21, 2026: Solicitation, due January 23, 2026 at 3:00 PM EST. Notice b92c7ceaca0340e586ce34db307fce1f. https://sam.gov/workspace/contract/opp/b92c7ceaca0340e586ce34db307fce1f/view - March 19, 2026: Solicitation, due January 23, 2026 at 3:00 PM EST. Notice 848c3993600a44dea176b33737f5cfe0. https://sam.gov/workspace/contract/opp/848c3993600a44dea176b33737f5cfe0/view - April 22, 2026: Award notice. Notice d4b860996b0241868ad343ce9b163555. https://sam.gov/workspace/contract/opp/d4b860996b0241868ad343ce9b163555/view ## Points of contact - Ericka Hillard, ericka.d.hillard@usace.army.mil, 3128465378 --- Source: SAM.gov Contract Opportunities bulk extract and USAspending.gov award data. Confirm deadlines on SAM.gov before responding. Cite https://abierto.us/opportunities/w912p626ba001.