W912DW25R0018: Lake Washington Ship Canal Emergency Closure System
Closed Solicitation Posted
This opportunity was awarded. See the award notice from .
- Solicitation number
- W912DW25R0018
- Agency
-
ENDIST Seattle
US Army Corps of Engineers, Department of Defense
- Responses due
- Set-aside
- No set-aside
Opportunity facts
- NAICS code
- 237990 Other Heavy and Civil Engineering Construction
- Place of performance
- Hiram M. Chittenden Locks, Hiram M. Chittenden, 3015 NW 54th St. Seattle, WA 98107 Seattle, Washington 98107, United States
- Points of contact
Notice details come from SAM.gov. Updated .
About this opportunity
The U.S. Army Corps of Engineers Engineering District Seattle is seeking contractors to install a new emergency closure system at the Hiram M. Chittenden Locks (Ballard Locks) on the Lake Washington Ship Canal in Seattle, Washington. The project involves replacing the existing emergency closure system, originally constructed in 1917 and never used, with a modern full-height bulkhead system featuring vertical storage capability that can be deployed in rapidly flowing water to prevent pool loss if the lock's miter gates are damaged. The scope includes mobilization/demobilization, demolition of existing equipment, installation of a new crane, bulkhead, recess bearing plate, support frame, electrical components, load testing, training, and delivery of operations manuals and as-built drawings. The contract will be awarded using a lowest-price technically acceptable (LPTA) evaluation process for a firm-fixed-price construction contract. The solicitation has undergone multiple amendments, with the final proposal deadline set for July 23, 2025, at 10:00 AM Pacific Time, and offerors must acknowledge receipt of all amendments.
This procurement does not utilize any set-aside designations and is classified under NAICS code 237990 (Other Heavy and Civil Engineering Construction). The project magnitude is estimated between $1 million and $5 million, though no specific contract value has been disclosed in the available documentation. Work will be performed at the Ballard Locks facility located at 3015 NW 54th Street, Seattle, Washington, which serves critical functions including navigation between Puget Sound and local lakes, maintaining a saltwater barrier, and regulating lake levels that support major infrastructure like the SR-520 and I-90 floating bridges. A site visit was conducted on June 17, 2025, with representatives from multiple companies including Global Diving, MD Commercial Electric, Northbank, Redside Construction, RJS Construction, Tetra Tech, and Transco Industries attending. The new system is designed to address limitations of the current emergency closure system, which requires divers for installation, cannot operate in flowing water, and has sealing and crane capacity issues.
Notice text
7 versions
Update #7 · Latest ·
*****July 22, 2025- Amendment R0005-The following action was taking on July 22, 2025. The due date for the receipt of proposals is NOT extended. Quotes are due 23 July 2025 at 10:00 AM Pacific Time. Please see the attached Amendment W912DW25R0018R0005. Offerors must acknowledge receipt of this amendment by number and date on offer. The purpose of this project is to install a new emergency closure system at the Hiram M. Chittenden Locks, Lake Washington Ship Canal, Seattle, WA. An emergency closure structure is any device designed to be placed in rapidly flowing water under differential head to prevent the loss of pool if the lock miter gates are damaged and can no longer function to control the pool. An emergency closure system consists of a closure structure and all the associated equipment necessary to install the closure structure in flowing water. ***** *****July 17, 2025- Amendment R0004-The following action was taking on July 17, 2025. The due date for the receipt of proposals is NOT extended. Quotes are due 23 July 2025 at 10:00 AM Pacific Time. Please see the attached Amendment W912DW25R0018R0004. Offerors must acknowledge receipt of this amendment by number and date on offer. The purpose of this project is to install a new emergency closure system at the Hiram M. Chittenden Locks, Lake Washington Ship Canal, Seattle, WA. An emergency closure structure is any device designed to be placed in rapidly flowing water under differential head to prevent the loss of pool if the lock miter gates are damaged and can no longer function to control the pool. An emergency closure system consists of a closure structure and all the associated equipment necessary to install the closure structure in flowing water. ***** *****July 15, 2025- Amendment R0003-The following action was taking on July 15, 2025. The due date for the receipt of proposals is NOT extended. Quotes are due 23 July 2025 at 10:00 AM Pacific Time. Please see the attached Amendment W912DW25R0018R0003. Offerors must acknowledge receipt of this amendment by number and date on offer. The purpose of this project is to install a new emergency closure system at the Hiram M. Chittenden Locks, Lake Washington Ship Canal, Seattle, WA. An emergency closure structure is any device designed to be placed in rapidly flowing water under differential head to prevent the loss of pool if the lock miter gates are damaged and can no longer function to control the pool. An emergency closure system consists of a closure structure and all the associated equipment necessary to install the closure structure in flowing water. ***** *****July 11, 2025- Amendment R0002-The following action was taking on July 11, 2025. The due date for the receipt of proposals is NOT extended. Quotes are due 23 July 2025 at 10:00 AM Pacific Time. Please see the attached Amendment W912DW25R0018R0002. Offerors must acknowledge receipt of this amendment by number and date on offer. The purpose of this project is to install a new emergency closure system at the Hiram M. Chittenden Locks, Lake Washington Ship Canal, Seattle, WA. An emergency closure structure is any device designed to be placed in rapidly flowing water under differential head to prevent the loss of pool if the lock miter gates are damaged and can no longer function to control the pool. An emergency closure system consists of a closure structure and all the associated equipment necessary to install the closure structure in flowing water. ***** *****June 24, 2025- Amendment R0001-The following action was taking on June 24, 2025. The due date for the receipt of proposals is extended. Quotes are due 23 July 2025 at 10:00 AM Pacific Time. Please see the attached Amendment W912DW25R0018R0001. Offerors must acknowledge receipt of this amendment by number and date on offer. No further actions were taken on this update. The purpose of this project is to install a new emergency closure system at the Hiram M. Chittenden Locks, Lake Washington Ship Canal, Seattle, WA. An emergency closure structure is any device designed to be placed in rapidly flowing water under differential head to prevent the loss of pool if the lock miter gates are damaged and can no longer function to control the pool. An emergency closure system consists of a closure structure and all the associated equipment necessary to install the closure structure in flowing water.
Update #6 ·
*****July 17, 2025- Amendment R0004-The following action was taking on July 14, 2025. The due date for the receipt of proposals is NOT extended. Quotes are due 23 July 2025 at 10:00 AM Pacific Time. Please see the attached Amendment W912DW25R0018R0004. Offerors must acknowledge receipt of this amendment by number and date on offer. The purpose of this project is to install a new emergency closure system at the Hiram M. Chittenden Locks, Lake Washington Ship Canal, Seattle, WA. An emergency closure structure is any device designed to be placed in rapidly flowing water under differential head to prevent the loss of pool if the lock miter gates are damaged and can no longer function to control the pool. An emergency closure system consists of a closure structure and all the associated equipment necessary to install the closure structure in flowing water. ***** *****July 15, 2025- Amendment R0003-The following action was taking on July 15, 2025. The due date for the receipt of proposals is NOT extended. Quotes are due 23 July 2025 at 10:00 AM Pacific Time. Please see the attached Amendment W912DW25R0018R0003. Offerors must acknowledge receipt of this amendment by number and date on offer. The purpose of this project is to install a new emergency closure system at the Hiram M. Chittenden Locks, Lake Washington Ship Canal, Seattle, WA. An emergency closure structure is any device designed to be placed in rapidly flowing water under differential head to prevent the loss of pool if the lock miter gates are damaged and can no longer function to control the pool. An emergency closure system consists of a closure structure and all the associated equipment necessary to install the closure structure in flowing water. ***** *****July 11, 2025- Amendment R0002-The following action was taking on July 11, 2025. The due date for the receipt of proposals is NOT extended. Quotes are due 23 July 2025 at 10:00 AM Pacific Time. Please see the attached Amendment W912DW25R0018R0002. Offerors must acknowledge receipt of this amendment by number and date on offer. The purpose of this project is to install a new emergency closure system at the Hiram M. Chittenden Locks, Lake Washington Ship Canal, Seattle, WA. An emergency closure structure is any device designed to be placed in rapidly flowing water under differential head to prevent the loss of pool if the lock miter gates are damaged and can no longer function to control the pool. An emergency closure system consists of a closure structure and all the associated equipment necessary to install the closure structure in flowing water. ***** *****June 24, 2025- Amendment R0001-The following action was taking on June 24, 2025. The due date for the receipt of proposals is extended. Quotes are due 23 July 2025 at 10:00 AM Pacific Time. Please see the attached Amendment W912DW25R0018R0001. Offerors must acknowledge receipt of this amendment by number and date on offer. No further actions were taken on this update. The purpose of this project is to install a new emergency closure system at the Hiram M. Chittenden Locks, Lake Washington Ship Canal, Seattle, WA. An emergency closure structure is any device designed to be placed in rapidly flowing water under differential head to prevent the loss of pool if the lock miter gates are damaged and can no longer function to control the pool. An emergency closure system consists of a closure structure and all the associated equipment necessary to install the closure structure in flowing water.
Update #5 ·
*****July 15, 2025- Amendment R0003-The following action was taking on July 15, 2025. The due date for the receipt of proposals is NOT extended. Quotes are due 23 July 2025 at 10:00 AM Pacific Time. Please see the attached Amendment W912DW25R0018R0003. Offerors must acknowledge receipt of this amendment by number and date on offer. The purpose of this project is to install a new emergency closure system at the Hiram M. Chittenden Locks, Lake Washington Ship Canal, Seattle, WA. An emergency closure structure is any device designed to be placed in rapidly flowing water under differential head to prevent the loss of pool if the lock miter gates are damaged and can no longer function to control the pool. An emergency closure system consists of a closure structure and all the associated equipment necessary to install the closure structure in flowing water. ***** *****July 11, 2025- Amendment R0002-The following action was taking on July 11, 2025. The due date for the receipt of proposals is NOT extended. Quotes are due 23 July 2025 at 10:00 AM Pacific Time. Please see the attached Amendment W912DW25R0018R0002. Offerors must acknowledge receipt of this amendment by number and date on offer. The purpose of this project is to install a new emergency closure system at the Hiram M. Chittenden Locks, Lake Washington Ship Canal, Seattle, WA. An emergency closure structure is any device designed to be placed in rapidly flowing water under differential head to prevent the loss of pool if the lock miter gates are damaged and can no longer function to control the pool. An emergency closure system consists of a closure structure and all the associated equipment necessary to install the closure structure in flowing water. ***** *****June 24, 2025- Amendment R0001-The following action was taking on June 24, 2025. The due date for the receipt of proposals is extended. Quotes are due 23 July 2025 at 10:00 AM Pacific Time. Please see the attached Amendment W912DW25R0018R0001. Offerors must acknowledge receipt of this amendment by number and date on offer. No further actions were taken on this update. The purpose of this project is to install a new emergency closure system at the Hiram M. Chittenden Locks, Lake Washington Ship Canal, Seattle, WA. An emergency closure structure is any device designed to be placed in rapidly flowing water under differential head to prevent the loss of pool if the lock miter gates are damaged and can no longer function to control the pool. An emergency closure system consists of a closure structure and all the associated equipment necessary to install the closure structure in flowing water.
Update #4 ·
July 11, 2025-Amendment R0002-The following action was taking on July 11, 2025. The due date for the receipt of proposals is NOT extended. Quotes are due 23 July 2025 at 10:00 AM Pacific Time. Please see the attached Amendment W912DW25R0018R0002. Offerors must acknowledge receipt of this amendment by number and date on offer. The purpose of this project is to install a new emergency closure system at the Hiram M. Chittenden Locks, Lake Washington Ship Canal, Seattle, WA. An emergency closure structure is any device designed to be placed in rapidly flowing water under differential head to prevent the loss of pool if the lock miter gates are damaged and can no longer function to control the pool. An emergency closure system consists of a closure structure and all the associated equipment necessary to install the closure structure in flowing water. *****June 24, 2025-Amendment R0001-The following action was taking on June 24, 2025. The due date for the receipt of proposals is extended. Quotes are due 23 July 2025 at 10:00 AM Pacific Time. Please see the attached Amendment W912DW25R0018R0001. Offerors must acknowledge receipt of this amendment by number and date on offer. No further actions were taken on this update. The purpose of this project is to install a new emergency closure system at the Hiram M. Chittenden Locks, Lake Washington Ship Canal, Seattle, WA. An emergency closure structure is any device designed to be placed in rapidly flowing water under differential head to prevent the loss of pool if the lock miter gates are damaged and can no longer function to control the pool. An emergency closure system consists of a closure structure and all the associated equipment necessary to install the closure structure in flowing water.
Update #3 ·
June 24, 2025-Amendment R0001-The following action was taking on June 24, 2025. The due date for the receipt of proposals is extended. Quotes are due 23 July 2025 at 10:00 AM Pacific Time. Please see the attached Amendment W912DW25R0018R0001. Offerors must acknowledge receipt of this amendment by number and date on offer. No further actions were taken on this updateThe purpose of this project is to install a new emergency closure system at the Hiram M. Chittenden Locks, Lake Washington Ship Canal, Seattle, WA. An emergency closure structure is any device designed to be placed in rapidly flowing water under differential head to prevent the loss of pool if the lock miter gates are damaged and can no longer function to control the pool. An emergency closure system consists of a closure structure and all the associated equipment necessary to install the closure structure in flowing water.
Update #2 ·
The purpose of this project is to install a new emergency closure system at the Hiram M. Chittenden Locks, Lake Washington Ship Canal, Seattle, WA. An emergency closure structure is any device designed to be placed in rapidly flowing water under differential head to prevent the loss of pool if the lock miter gates are damaged and can no longer function to control the pool. An emergency closure system consists of a closure structure and all the associated equipment necessary to install the closure structure in flowing water.
The following action was taking on June 24, 2025. The due date for the receipt of proposals is extended. Quotes are due 23 July 2025 at 10:00 AM Pacific Time. Please see the attached Amendment W912DW25R0018R0001. Offerors must acknowledge receipt of this amendment by number and date on offer. No further actions were taken on this update
Update #1 ·
The purpose of this project is to install a new emergency closure system at the Hiram M. Chittenden Locks, Lake Washington Ship Canal, Seattle, WA. An emergency closure structure is any device designed to be placed in rapidly flowing water under differential head to prevent the loss of pool if the lock miter gates are damaged and can no longer function to control the pool. An emergency closure system consists of a closure structure and all the associated equipment necessary to install the closure structure in flowing water.
Files
Notice history
| Notice | Type | Posted |
|---|---|---|
| Lake Washington Ship Canal Emergency Closure System | Award Notice | |
| This notice | Solicitation | |
| LWSC Small Lock Emergency Closure System | Pre-Solicitation | |
| Lake Washington Ship Canal Small Lock Emergency Closure System Sources Sought | Pre-Solicitation |
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