Conemaugh River Lake Accumulated Sediment Dredging Project
Cancelled Solicitation Posted
- Solicitation number
- W911WN25BA013
- Agency
-
ENDIST Pittsburgh
US Army Corps of Engineers, Department of Defense
- Responses due
- Set-aside
- Total Small Business
Opportunity facts
- NAICS code
- 237990 Other Heavy and Civil Engineering Construction
- Place of performance
- 1665 Auen Rd.Saltsburg, PA 15681 15681
- Points of contact
Notice details come from SAM.gov. Updated .
About this opportunity
The U.S. Army Corps of Engineers, Pittsburgh District, is procuring comprehensive dredging and ancillary services for the Conemaugh River Lake Accumulated Sediment Dredging Project in Pennsylvania. The work involves removing accumulated sediments between the upstream Stone Arch Bridge and Conemaugh Dam, constructing a Dredged Material Management Area (DMMA) for handling and dewatering dredged material, transporting dewatered material to an offsite disposal facility, and completing associated site restoration including erosion controls and wetland seeding. Contractors must adhere to USACE Construction Quality Management procedures and various environmental and traffic restrictions throughout the project. The procurement is structured as an Invitation for Bid (IFB) with a Firm-Fixed-Price contract structure, and the work must be completed within 685 calendar days after receiving the Notice to Proceed. The original solicitation was posted on May 28, 2025, with a bid submission deadline of July 31, 2025, and Amendment 0001 extended the question period to June 13, 2025.
This opportunity is designated as a 100% Small Business Set-Aside under NAICS code 237990 (Dredging) with a small business size standard of $37,000,000. The project's estimated magnitude falls between $10,000,000 and $25,000,000 according to DFAR 236.204(i), though Duwamish Services, LLC from Seattle, Washington submitted the sole bid for $38,734,000, significantly exceeding the Independent Government Estimate of $20,478,500.77. The work will be performed at Conemaugh River Lake, located in both Indiana and Westmoreland Counties, Pennsylvania, near Tunnelton, with the specific performance address at 1665 Auen Road, Saltsburg, PA. The project includes construction of approximately 15.4 acres for the DMMA and a 1.75-acre contractor staging area, with multiple access ramps and strict environmental protections including archaeological buffer zones and wetland preservation requirements. A pre-bid site visit was conducted on June 5, 2025, with representatives from potential contractors including Duwamish Services and Mobile Dredging & Pier attending.
Notice text
3 versions
Update #3 · Latest ·
The U.S. Army Corps of Engineers, Pittsburgh District, requirement to perform dredging and ancillary work at the Conemaugh River Lake. Conemaugh River Lake is located in both Indiana and Westmoreland County, Pennsylvania, near Tunnelton, PA. Major features of the work for the Conemaugh River Lake Dredging Project will generally involve the following: Dredging to remove accumulated sediments within the Lake between the upstream Stone Arch Bridge and the Conemaugh Dam; Constructing a Dredged Material Management Area (DMMA) and handling, dewatering, and stabilizing dredged material within it; Transporting dewatered, dredged material from the DMMA to an offsite disposal facility; Ancillary site work including erosion and sediment controls, gravel roadway improvements, and site restoration; Various environmental and traffic work restrictions exist which will need to be adhered to during construction; Once dredging is complete, the project area will be returned to pre-existing conditions, including seeding of disturbed areas and wetland seeding as required; The contractor will be required to adhere to USACE Construction Quality Management concepts and procedures. The contractor will be required to furnish all materials proposed for installation, and will be responsible for properly stockpiling, disposing, or recycling, as appropriate, respective items removed. The work shall be completed within 685 calendar days after receipt of the written Notice to Proceed. Per DFAR 236.204(i) the magnitude of construction is between $10,000,000.00 and $25,000,000.00. The North American Industrial Classification System (NAICS) for this procurement is 237990 ? Dredging (e.g., canal, channel, ditch, waterway) and the small business size standard is $37,000,000.00. This acquisition will be procured as a 100% Small Business Set-Aside. The resulting award will be for one (1) Firm-Fixed-Price (FFP) Contract. All responsible Bidders are encouraged to participate. The Invitation for Bid (IFB) will be issued online through Procurement Integrated Enterprise Environment (PIEE) which posts the opportunity to SAM.gov; therefore, requests for hardcopies of the solicitation will not be honored. Information regarding the U.S. Army Corps of Engineers process for settling requests for equitable adjustments and duration goals to achieve definitization of equitable adjustments for change orders under construction contracts can be found by going to https://www.usace.army.mil/Business-With-Us/Partnering/ then clicking on View FFP Contract Changes Playbook Here. Amendment 1 is to update plans and technical specifications.
Update #2 ·
The U.S. Army Corps of Engineers, Pittsburgh District, requirement to perform dredging and ancillary work at the Conemaugh River Lake. Conemaugh River Lake is located in both Indiana and Westmoreland County, Pennsylvania, near Tunnelton, PA. Major features of the work for the Conemaugh River Lake Dredging Project will generally involve the following: Dredging to remove accumulated sediments within the Lake between the upstream Stone Arch Bridge and the Conemaugh Dam; Constructing a Dredged Material Management Area (DMMA) and handling, dewatering, and stabilizing dredged material within it; Transporting dewatered, dredged material from the DMMA to an offsite disposal facility; Ancillary site work including erosion and sediment controls, gravel roadway improvements, and site restoration; Various environmental and traffic work restrictions exist which will need to be adhered to during construction; Once dredging is complete, the project area will be returned to pre-existing conditions, including seeding of disturbed areas and wetland seeding as required; The contractor will be required to adhere to USACE Construction Quality Management concepts and procedures. The contractor will be required to furnish all materials proposed for installation, and will be responsible for properly stockpiling, disposing, or recycling, as appropriate, respective items removed. The work shall be completed within 685 calendar days after receipt of the written Notice to Proceed. Per DFAR 236.204(i) the magnitude of construction is between $10,000,000.00 and $25,000,000.00. The North American Industrial Classification System (NAICS) for this procurement is 237990 ? Dredging (e.g., canal, channel, ditch, waterway) and the small business size standard is $37,000,000.00. This acquisition will be procured as a 100% Small Business Set-Aside. The resulting award will be for one (1) Firm-Fixed-Price (FFP) Contract. All responsible Bidders are encouraged to participate. The Invitation for Bid (IFB) will be issued online through Procurement Integrated Enterprise Environment (PIEE) which posts the opportunity to SAM.gov; therefore, requests for hardcopies of the solicitation will not be honored. Information regarding the U.S. Army Corps of Engineers process for settling requests for equitable adjustments and duration goals to achieve definitization of equitable adjustments for change orders under construction contracts can be found by going to https://www.usace.army.mil/Business-With-Us/Partnering/ then clicking on View FFP Contract Changes Playbook Here. Amendment 1 is to update plans and technical specifications, and extend Bidder Inquiries in ProjNet.
Update #1 ·
The U.S. Army Corps of Engineers, Pittsburgh District, requirement to perform dredging and ancillary work at the Conemaugh River Lake. Conemaugh River Lake is located in both Indiana and Westmoreland County, Pennsylvania, near Tunnelton, PA. Major features of the work for the Conemaugh River Lake Dredging Project will generally involve the following: Dredging to remove accumulated sediments within the Lake between the upstream Stone Arch Bridge and the Conemaugh Dam; Constructing a Dredged Material Management Area (DMMA) and handling, dewatering, and stabilizing dredged material within it; Transporting dewatered, dredged material from the DMMA to an offsite disposal facility; Ancillary site work including erosion and sediment controls, gravel roadway improvements, and site restoration; Various environmental and traffic work restrictions exist which will need to be adhered to during construction; Once dredging is complete, the project area will be returned to pre-existing conditions, including seeding of disturbed areas and wetland seeding as required; The contractor will be required to adhere to USACE Construction Quality Management concepts and procedures. The contractor will be required to furnish all materials proposed for installation, and will be responsible for properly stockpiling, disposing, or recycling, as appropriate, respective items removed. The work shall be completed within 685 calendar days after receipt of the written Notice to Proceed. Per DFAR 236.204(i) the magnitude of construction is between $10,000,000.00 and $25,000,000.00. The North American Industrial Classification System (NAICS) for this procurement is 237990 ? Dredging (e.g., canal, channel, ditch, waterway) and the small business size standard is $37,000,000.00. This acquisition will be procured as a 100% Small Business Set-Aside. The resulting award will be for one (1) Firm-Fixed-Price (FFP) Contract. All responsible Bidders are encouraged to participate. The Invitation for Bid (IFB) will be issued online through Procurement Integrated Enterprise Environment (PIEE) which posts the opportunity to SAM.gov; therefore, requests for hardcopies of the solicitation will not be honored. Information regarding the U.S. Army Corps of Engineers process for settling requests for equitable adjustments and duration goals to achieve definitization of equitable adjustments for change orders under construction contracts can be found by going to https://www.usace.army.mil/Business-With-Us/Partnering/ then clicking on View FFP Contract Changes Playbook Here.
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