Mount saint helens sediment retention structure crest raise
Cancelled Solicitation Posted
- Solicitation number
- W9127N25BA007
- Agency
-
ENDIST Portland
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
- Toutle, Washington 98649, United States
Notice details come from SAM.gov. Updated .
About this opportunity
The U.S. Army Corps of Engineers, Portland District, is soliciting bids for construction services to raise the crest of the Mount Saint Helens Sediment Retention Structure located on the North Fork Toutle River in Cowlitz County, Washington. The project scope includes mobilization and demobilization, river diversion, rock excavation, rock foundation preparation with dental concrete placement, roller-compacted concrete placement, outlet works sealing, and related incidental work. This is the second of three planned crest raises for the structure, which was originally constructed in the late 1980s to prevent sediment from flowing downstream and threatening levee systems from Castle Rock to Lexington. The contract evaluation includes a 10% HUBZone price evaluation preference, and contractors must comply with Davis-Bacon Act wage requirements. The bid submission deadline was October 22, 2025 at 11:00 AM PST, with a mandatory pre-bid site visit that occurred on August 4, 2025, and multiple solicitation amendments issued throughout the procurement period to clarify requirements and extend deadlines.
This solicitation includes no set-aside designations and represents full and open competition. The previous crest raise performed in 2012 was completed by LKE Corporation under a separate contract. The estimated project value ranges between $25 million and $100 million, with two bidders submitting proposals: Anvil Builders Inc. at $36,080,027.88 and Flatiron Dragados Constructors, Inc. at $34,503,510.00. The base contract scope includes a mandatory 5-foot crest raise with an optional 10-foot raise feature; volume calculations indicate the 5-foot raise involves 1,787 cubic yards of cut and 14,455 cubic yards of fill, while the 10-foot raise option requires 3,253 cubic yards of cut and 31,288 cubic yards of fill. Physical project completion is scheduled for December 31, 2027, with a contract end date of May 7, 2028, and all work will be performed at the Sediment Retention Structure site on the North Fork Toutle River in Toutle, Washington, accessed via gravel roads and existing dam infrastructure.
Notice text
12 versions
Update #12 · Latest ·
***30-OCT-25*** Solicitation Amendment 0006: IN ACCORDANCE WITH FAR 14.404-1(C)(6), THE UNITED STATES ARMY CORPS OF ENGINEERS, PORTLAND DISTRICT (USACE-NWP) IS CANCELLING SOLICITATION W9127N25BA007 IN ITS ENTIRETY.
***22-OCT-25*** Bid Abstract posted.
***15-OCT-25*** A DOCUMENT HAS BEEN ADDED TO THIS NOTICE, "Small Business Plan Template.docx". THIS IS NOT AN OFFICIAL OR REQUIRED TEMPLATE AND IS BEING PROVIDED FOR INFORMATION ONLY (FIO). OFFERORS ARE RESPONSIBLE FOR COMPLIANCE WITH 52.219-9 ALT II AS INCLUDED IN THIS SOLICITATION.
***16-SEP-25*** THE PURPOSE OF THIS AMENDMENT IS TO UPDATE THE CONSTRUCTION WAGE DETERMINATION WA20250123 DATED 09/12/2025. SEE SUMMARY OF CHANGES. ALL OTHER TERMS AND CONDITIONS REMAIN UNCHANGED.
***09-SEP-25*** THE PURPOSE OF THIS AMENDMENT IS TO PROVIDE UPDATED AND CORRECT CUT/FILL REPORT SPREADSHEET CALCULATIONS TITLED "MSH SRS SECONDARY SPILLWAY RAISE - REVISED CUT FILL REPORT AMENDMENT 0004" TO REPLACE THE FORMER A9 VOLUME CALCULATIONS.
***03-SEP-25*** Solicitation Amendment 0003: THE PURPOSE OF THIS AMENDMENT IS TO EXTEND THE BID SUBMISSION DUE DATE TO 11:00 A.M PST ON 22-OCT-2025.
***28-AUG-25*** Solicitation Amendment 0002: THE PURPOSE OF THIS AMENDMENT IS TO ADD THE FOLLOWING FOR INFORMATION ONLY (FIO) HISTORICAL DOCUMENTS WITH PICTURES AND DRAWINGS.
- FOUNDATION PREP AND TREATMENT 1991 FND REPORT
- SRS RAISE FOUNDATION CONDITION_15OCT2012
The purpose of this amendment is to add the following for information only (fio) historical documents with pictures and drawings.
- Foundation Prep and Treatment 1991 fnd Report
- SRS Raise Foundation Condition_15OCT2012
***25-AUG-25*** Amendment 0001 has an updated Wage Determination. Also FIO from 1991 and 2012 respectively.
***01-AUG-25*** Added Plans: Vol II are the For Information Only (FIO) sheets showing previous work done for the SRS, including investigation, RCC and valvehouse (to decommission). The Vol II sheets only have previous work or existing conditions.
***28-JUL-25*** Plans have been uploaded. We have Modeling files for this solicitation that cannot be uploaded, please email me Andrew.J.Sprys@usace.army.mil and I can send these through DoD Safe.
***24-JUL-25*** Having difficulty trying to upload the plans/drawings but we're working on it and they will be available as soon as we are able.
Description of Requirement: The project purpose is to The U.S. Army Corps of Engineers, Portland District, has a requirement to construct an increased level of sediment retention structure providing additional storage and allowing existing river flows. The work includes mobilization/demobilization, river diversion, rock excavation, rock foundation preparation including placement of dental concrete, placement of roller-compacted concrete, outlet works sealing, and incidental related work. This effort is to include all associated works required and described within this Contract package
Project Background. The Sediment Retention Structure was constructed in the Late 80's to store the sediment coming off the avalanche area so that the sediment does not flow down to the low Cowlitz River. The main objective for the project is to keep the level of Protection on the levee systems from Castle Rock to Lexington. There has already been one crest raise in 2012 and this will be the second of three planned crest raises.
The project purpose is to construct an increased level of sediment retention structure providing additional storage and allowing existing river flows. The work includes mobilization/demobilization, river diversion, rock excavation, rock foundation preparation including placement of dental concrete, placement of roller-compacted concrete, outlet works sealing, and incidental related work. This effort is to include all associated works required and described within this Contract package.
The work will be located at the Sediment Retention Structure on the North Fork Toutle River in Cowlitz County, Washington, off of Highway 504. Contractor access to the work site will be from gravel access roads on the dam site, the gravel roadway on top of the embankment dam, the top of the concrete outlet works structure, and a paved roadway on the spillway approach pier west of the existing spillway crest.
Purpose: The project purpose is to construct an increased level of sediment retention structure providing additional storage and allowing existing river flows. The work includes mobilization/demobilization, river diversion, rock excavation, rock foundation preparation including placement of dental concrete, placement of roller-compacted concrete, outlet works sealing, and incidental related work. This effort is to include all associated works required and described within this Contract package.
The work will be located at the Sediment Retention Structure on the North Fork Toutle River in Cowlitz County, Washington, off of Highway 504. Contractor access to the work site will be from gravel access roads on the dam site, the gravel roadway on top of the embankment dam, the top of the concrete outlet works structure, and a paved roadway on the spillway approach pier west of the existing spillway crest
Update #11 ·
***22-OCT-25*** Bid Abstract posted.
***15-OCT-25*** A DOCUMENT HAS BEEN ADDED TO THIS NOTICE, "Small Business Plan Template.docx". THIS IS NOT AN OFFICIAL OR REQUIRED TEMPLATE AND IS BEING PROVIDED FOR INFORMATION ONLY (FIO). OFFERORS ARE RESPONSIBLE FOR COMPLIANCE WITH 52.219-9 ALT II AS INCLUDED IN THIS SOLICITATION.
***16-SEP-25*** THE PURPOSE OF THIS AMENDMENT IS TO UPDATE THE CONSTRUCTION WAGE DETERMINATION WA20250123 DATED 09/12/2025. SEE SUMMARY OF CHANGES. ALL OTHER TERMS AND CONDITIONS REMAIN UNCHANGED.
***09-SEP-25*** THE PURPOSE OF THIS AMENDMENT IS TO PROVIDE UPDATED AND CORRECT CUT/FILL REPORT SPREADSHEET CALCULATIONS TITLED "MSH SRS SECONDARY SPILLWAY RAISE - REVISED CUT FILL REPORT AMENDMENT 0004" TO REPLACE THE FORMER A9 VOLUME CALCULATIONS.
***03-SEP-25*** Solicitation Amendment 0003: THE PURPOSE OF THIS AMENDMENT IS TO EXTEND THE BID SUBMISSION DUE DATE TO 11:00 A.M PST ON 22-OCT-2025.
***28-AUG-25*** Solicitation Amendment 0002: THE PURPOSE OF THIS AMENDMENT IS TO ADD THE FOLLOWING FOR INFORMATION ONLY (FIO) HISTORICAL DOCUMENTS WITH PICTURES AND DRAWINGS.
- FOUNDATION PREP AND TREATMENT 1991 FND REPORT
- SRS RAISE FOUNDATION CONDITION_15OCT2012
The purpose of this amendment is to add the following for information only (fio) historical documents with pictures and drawings.
- Foundation Prep and Treatment 1991 fnd Report
- SRS Raise Foundation Condition_15OCT2012
***25-AUG-25*** Amendment 0001 has an updated Wage Determination. Also FIO from 1991 and 2012 respectively.
***01-AUG-25*** Added Plans: Vol II are the For Information Only (FIO) sheets showing previous work done for the SRS, including investigation, RCC and valvehouse (to decommission). The Vol II sheets only have previous work or existing conditions.
***28-JUL-25*** Plans have been uploaded. We have Modeling files for this solicitation that cannot be uploaded, please email me Andrew.J.Sprys@usace.army.mil and I can send these through DoD Safe.
***24-JUL-25*** Having difficulty trying to upload the plans/drawings but we're working on it and they will be available as soon as we are able.
Description of Requirement: The project purpose is to The U.S. Army Corps of Engineers, Portland District, has a requirement to construct an increased level of sediment retention structure providing additional storage and allowing existing river flows. The work includes mobilization/demobilization, river diversion, rock excavation, rock foundation preparation including placement of dental concrete, placement of roller-compacted concrete, outlet works sealing, and incidental related work. This effort is to include all associated works required and described within this Contract package
Project Background. The Sediment Retention Structure was constructed in the Late 80's to store the sediment coming off the avalanche area so that the sediment does not flow down to the low Cowlitz River. The main objective for the project is to keep the level of Protection on the levee systems from Castle Rock to Lexington. There has already been one crest raise in 2012 and this will be the second of three planned crest raises.
The project purpose is to construct an increased level of sediment retention structure providing additional storage and allowing existing river flows. The work includes mobilization/demobilization, river diversion, rock excavation, rock foundation preparation including placement of dental concrete, placement of roller-compacted concrete, outlet works sealing, and incidental related work. This effort is to include all associated works required and described within this Contract package.
The work will be located at the Sediment Retention Structure on the North Fork Toutle River in Cowlitz County, Washington, off of Highway 504. Contractor access to the work site will be from gravel access roads on the dam site, the gravel roadway on top of the embankment dam, the top of the concrete outlet works structure, and a paved roadway on the spillway approach pier west of the existing spillway crest.
Purpose: The project purpose is to construct an increased level of sediment retention structure providing additional storage and allowing existing river flows. The work includes mobilization/demobilization, river diversion, rock excavation, rock foundation preparation including placement of dental concrete, placement of roller-compacted concrete, outlet works sealing, and incidental related work. This effort is to include all associated works required and described within this Contract package.
The work will be located at the Sediment Retention Structure on the North Fork Toutle River in Cowlitz County, Washington, off of Highway 504. Contractor access to the work site will be from gravel access roads on the dam site, the gravel roadway on top of the embankment dam, the top of the concrete outlet works structure, and a paved roadway on the spillway approach pier west of the existing spillway crest
Update #10 ·
***15-OCT-25*** A DOCUMENT HAS BEEN ADDED TO THIS NOTICE, "Small Business Plan Template.docx". THIS IS NOT AN OFFICIAL OR REQUIRED TEMPLATE AND IS BEING PROVIDED FOR INFORMATION ONLY (FIO). OFFERORS ARE RESPONSIBLE FOR COMPLIANCE WITH 52.219-9 ALT II AS INCLUDED IN THIS SOLICITATION.
***16-SEP-25*** THE PURPOSE OF THIS AMENDMENT IS TO UPDATE THE CONSTRUCTION WAGE DETERMINATION WA20250123 DATED 09/12/2025. SEE SUMMARY OF CHANGES. ALL OTHER TERMS AND CONDITIONS REMAIN UNCHANGED.
***09-SEP-25*** THE PURPOSE OF THIS AMENDMENT IS TO PROVIDE UPDATED AND CORRECT CUT/FILL REPORT SPREADSHEET CALCULATIONS TITLED "MSH SRS SECONDARY SPILLWAY RAISE - REVISED CUT FILL REPORT AMENDMENT 0004" TO REPLACE THE FORMER A9 VOLUME CALCULATIONS.
***03-SEP-25*** Solicitation Amendment 0003: THE PURPOSE OF THIS AMENDMENT IS TO EXTEND THE BID SUBMISSION DUE DATE TO 11:00 A.M PST ON 22-OCT-2025.
***28-AUG-25*** Solicitation Amendment 0002: THE PURPOSE OF THIS AMENDMENT IS TO ADD THE FOLLOWING FOR INFORMATION ONLY (FIO) HISTORICAL DOCUMENTS WITH PICTURES AND DRAWINGS.
- FOUNDATION PREP AND TREATMENT 1991 FND REPORT
- SRS RAISE FOUNDATION CONDITION_15OCT2012
The purpose of this amendment is to add the following for information only (fio) historical documents with pictures and drawings.
- Foundation Prep and Treatment 1991 fnd Report
- SRS Raise Foundation Condition_15OCT2012
***25-AUG-25*** Amendment 0001 has an updated Wage Determination. Also FIO from 1991 and 2012 respectively.
***01-AUG-25*** Added Plans: Vol II are the For Information Only (FIO) sheets showing previous work done for the SRS, including investigation, RCC and valvehouse (to decommission). The Vol II sheets only have previous work or existing conditions.
***28-JUL-25*** Plans have been uploaded. We have Modeling files for this solicitation that cannot be uploaded, please email me Andrew.J.Sprys@usace.army.mil and I can send these through DoD Safe.
***24-JUL-25*** Having difficulty trying to upload the plans/drawings but we're working on it and they will be available as soon as we are able.
Description of Requirement: The project purpose is to The U.S. Army Corps of Engineers, Portland District, has a requirement to construct an increased level of sediment retention structure providing additional storage and allowing existing river flows. The work includes mobilization/demobilization, river diversion, rock excavation, rock foundation preparation including placement of dental concrete, placement of roller-compacted concrete, outlet works sealing, and incidental related work. This effort is to include all associated works required and described within this Contract package
Project Background. The Sediment Retention Structure was constructed in the Late 80's to store the sediment coming off the avalanche area so that the sediment does not flow down to the low Cowlitz River. The main objective for the project is to keep the level of Protection on the levee systems from Castle Rock to Lexington. There has already been one crest raise in 2012 and this will be the second of three planned crest raises.
The project purpose is to construct an increased level of sediment retention structure providing additional storage and allowing existing river flows. The work includes mobilization/demobilization, river diversion, rock excavation, rock foundation preparation including placement of dental concrete, placement of roller-compacted concrete, outlet works sealing, and incidental related work. This effort is to include all associated works required and described within this Contract package.
The work will be located at the Sediment Retention Structure on the North Fork Toutle River in Cowlitz County, Washington, off of Highway 504. Contractor access to the work site will be from gravel access roads on the dam site, the gravel roadway on top of the embankment dam, the top of the concrete outlet works structure, and a paved roadway on the spillway approach pier west of the existing spillway crest.
Purpose: The project purpose is to construct an increased level of sediment retention structure providing additional storage and allowing existing river flows. The work includes mobilization/demobilization, river diversion, rock excavation, rock foundation preparation including placement of dental concrete, placement of roller-compacted concrete, outlet works sealing, and incidental related work. This effort is to include all associated works required and described within this Contract package.
The work will be located at the Sediment Retention Structure on the North Fork Toutle River in Cowlitz County, Washington, off of Highway 504. Contractor access to the work site will be from gravel access roads on the dam site, the gravel roadway on top of the embankment dam, the top of the concrete outlet works structure, and a paved roadway on the spillway approach pier west of the existing spillway crest
Update #9 ·
***16-SEP-25*** THE PURPOSE OF THIS AMENDMENT IS TO UPDATE THE CONSTRUCTION WAGE DETERMINATION WA20250123 DATED 09/12/2025. SEE SUMMARY OF CHANGES. ALL OTHER TERMS AND CONDITIONS REMAIN UNCHANGED.
***09-SEP-25*** THE PURPOSE OF THIS AMENDMENT IS TO PROVIDE UPDATED AND CORRECT CUT/FILL REPORT SPREADSHEET CALCULATIONS TITLED "MSH SRS SECONDARY SPILLWAY RAISE - REVISED CUT FILL REPORT AMENDMENT 0004" TO REPLACE THE FORMER A9 VOLUME CALCULATIONS.
***03-SEP-25*** Solicitation Amendment 0003: THE PURPOSE OF THIS AMENDMENT IS TO EXTEND THE BID SUBMISSION DUE DATE TO 11:00 A.M PST ON 22-OCT-2025.
***28-AUG-25*** Solicitation Amendment 0002: THE PURPOSE OF THIS AMENDMENT IS TO ADD THE FOLLOWING FOR INFORMATION ONLY (FIO) HISTORICAL DOCUMENTS WITH PICTURES AND DRAWINGS.
- FOUNDATION PREP AND TREATMENT 1991 FND REPORT
- SRS RAISE FOUNDATION CONDITION_15OCT2012
The purpose of this amendment is to add the following for information only (fio) historical documents with pictures and drawings.
- Foundation Prep and Treatment 1991 fnd Report
- SRS Raise Foundation Condition_15OCT2012
***25-AUG-25*** Amendment 0001 has an updated Wage Determination. Also FIO from 1991 and 2012 respectively.
***01-AUG-25*** Added Plans: Vol II are the For Information Only (FIO) sheets showing previous work done for the SRS, including investigation, RCC and valvehouse (to decommission). The Vol II sheets only have previous work or existing conditions.
***28-JUL-25*** Plans have been uploaded. We have Modeling files for this solicitation that cannot be uploaded, please email me Andrew.J.Sprys@usace.army.mil and I can send these through DoD Safe.
***24-JUL-25*** Having difficulty trying to upload the plans/drawings but we're working on it and they will be available as soon as we are able.
Description of Requirement: The project purpose is to The U.S. Army Corps of Engineers, Portland District, has a requirement to construct an increased level of sediment retention structure providing additional storage and allowing existing river flows. The work includes mobilization/demobilization, river diversion, rock excavation, rock foundation preparation including placement of dental concrete, placement of roller-compacted concrete, outlet works sealing, and incidental related work. This effort is to include all associated works required and described within this Contract package
Project Background. The Sediment Retention Structure was constructed in the Late 80's to store the sediment coming off the avalanche area so that the sediment does not flow down to the low Cowlitz River. The main objective for the project is to keep the level of Protection on the levee systems from Castle Rock to Lexington. There has already been one crest raise in 2012 and this will be the second of three planned crest raises.
The project purpose is to construct an increased level of sediment retention structure providing additional storage and allowing existing river flows. The work includes mobilization/demobilization, river diversion, rock excavation, rock foundation preparation including placement of dental concrete, placement of roller-compacted concrete, outlet works sealing, and incidental related work. This effort is to include all associated works required and described within this Contract package.
The work will be located at the Sediment Retention Structure on the North Fork Toutle River in Cowlitz County, Washington, off of Highway 504. Contractor access to the work site will be from gravel access roads on the dam site, the gravel roadway on top of the embankment dam, the top of the concrete outlet works structure, and a paved roadway on the spillway approach pier west of the existing spillway crest.
Purpose: The project purpose is to construct an increased level of sediment retention structure providing additional storage and allowing existing river flows. The work includes mobilization/demobilization, river diversion, rock excavation, rock foundation preparation including placement of dental concrete, placement of roller-compacted concrete, outlet works sealing, and incidental related work. This effort is to include all associated works required and described within this Contract package.
The work will be located at the Sediment Retention Structure on the North Fork Toutle River in Cowlitz County, Washington, off of Highway 504. Contractor access to the work site will be from gravel access roads on the dam site, the gravel roadway on top of the embankment dam, the top of the concrete outlet works structure, and a paved roadway on the spillway approach pier west of the existing spillway crest
Update #8 ·
***09-SEP-25*** THE PURPOSE OF THIS AMENDMENT IS TO PROVIDE UPDATED AND CORRECT CUT/FILL REPORT SPREADSHEET CALCULATIONS TITLED "MSH SRS SECONDARY SPILLWAY RAISE - REVISED CUT FILL REPORT AMENDMENT 0004" TO REPLACE THE FORMER A9 VOLUME CALCULATIONS.
***03-SEP-25*** Solicitation Amendment 0003: THE PURPOSE OF THIS AMENDMENT IS TO EXTEND THE BID SUBMISSION DUE DATE TO 11:00 A.M PST ON 22-OCT-2025.
***28-AUG-25*** Solicitation Amendment 0002: THE PURPOSE OF THIS AMENDMENT IS TO ADD THE FOLLOWING FOR INFORMATION ONLY (FIO) HISTORICAL DOCUMENTS WITH PICTURES AND DRAWINGS.
- FOUNDATION PREP AND TREATMENT 1991 FND REPORT
- SRS RAISE FOUNDATION CONDITION_15OCT2012
The purpose of this amendment is to add the following for information only (fio) historical documents with pictures and drawings.
- Foundation Prep and Treatment 1991 fnd Report
- SRS Raise Foundation Condition_15OCT2012
***25-AUG-25*** Amendment 0001 has an updated Wage Determination. Also FIO from 1991 and 2012 respectively.
***01-AUG-25*** Added Plans: Vol II are the For Information Only (FIO) sheets showing previous work done for the SRS, including investigation, RCC and valvehouse (to decommission). The Vol II sheets only have previous work or existing conditions.
***28-JUL-25*** Plans have been uploaded. We have Modeling files for this solicitation that cannot be uploaded, please email me Andrew.J.Sprys@usace.army.mil and I can send these through DoD Safe.
***24-JUL-25*** Having difficulty trying to upload the plans/drawings but we're working on it and they will be available as soon as we are able.
Description of Requirement: The project purpose is to The U.S. Army Corps of Engineers, Portland District, has a requirement to construct an increased level of sediment retention structure providing additional storage and allowing existing river flows. The work includes mobilization/demobilization, river diversion, rock excavation, rock foundation preparation including placement of dental concrete, placement of roller-compacted concrete, outlet works sealing, and incidental related work. This effort is to include all associated works required and described within this Contract package
Project Background. The Sediment Retention Structure was constructed in the Late 80's to store the sediment coming off the avalanche area so that the sediment does not flow down to the low Cowlitz River. The main objective for the project is to keep the level of Protection on the levee systems from Castle Rock to Lexington. There has already been one crest raise in 2012 and this will be the second of three planned crest raises.
The project purpose is to construct an increased level of sediment retention structure providing additional storage and allowing existing river flows. The work includes mobilization/demobilization, river diversion, rock excavation, rock foundation preparation including placement of dental concrete, placement of roller-compacted concrete, outlet works sealing, and incidental related work. This effort is to include all associated works required and described within this Contract package.
The work will be located at the Sediment Retention Structure on the North Fork Toutle River in Cowlitz County, Washington, off of Highway 504. Contractor access to the work site will be from gravel access roads on the dam site, the gravel roadway on top of the embankment dam, the top of the concrete outlet works structure, and a paved roadway on the spillway approach pier west of the existing spillway crest.
Purpose: The project purpose is to construct an increased level of sediment retention structure providing additional storage and allowing existing river flows. The work includes mobilization/demobilization, river diversion, rock excavation, rock foundation preparation including placement of dental concrete, placement of roller-compacted concrete, outlet works sealing, and incidental related work. This effort is to include all associated works required and described within this Contract package.
The work will be located at the Sediment Retention Structure on the North Fork Toutle River in Cowlitz County, Washington, off of Highway 504. Contractor access to the work site will be from gravel access roads on the dam site, the gravel roadway on top of the embankment dam, the top of the concrete outlet works structure, and a paved roadway on the spillway approach pier west of the existing spillway crest
Update #7 ·
***03-SEP-25*** Solicitation Amendment 0003: THE PURPOSE OF THIS AMENDMENT IS TO EXTEND THE BID SUBMISSION DUE DATE TO 11:00 A.M PST ON 22-OCT-2025.
***28-AUG-25*** Solicitation Amendment 0002: THE PURPOSE OF THIS AMENDMENT IS TO ADD THE FOLLOWING FOR INFORMATION ONLY (FIO) HISTORICAL DOCUMENTS WITH PICTURES AND DRAWINGS.
- FOUNDATION PREP AND TREATMENT 1991 FND REPORT
- SRS RAISE FOUNDATION CONDITION_15OCT2012
The purpose of this amendment is to add the following for information only (fio) historical documents with pictures and drawings.
- Foundation Prep and Treatment 1991 fnd Report
- SRS Raise Foundation Condition_15OCT2012
***25-AUG-25*** Amendment 0001 has an updated Wage Determination. Also FIO from 1991 and 2012 respectively.
***01-AUG-25*** Added Plans: Vol II are the For Information Only (FIO) sheets showing previous work done for the SRS, including investigation, RCC and valvehouse (to decommission). The Vol II sheets only have previous work or existing conditions.
***28-JUL-25*** Plans have been uploaded. We have Modeling files for this solicitation that cannot be uploaded, please email me Andrew.J.Sprys@usace.army.mil and I can send these through DoD Safe.
***24-JUL-25*** Having difficulty trying to upload the plans/drawings but we're working on it and they will be available as soon as we are able.
Description of Requirement: The project purpose is to The U.S. Army Corps of Engineers, Portland District, has a requirement to construct an increased level of sediment retention structure providing additional storage and allowing existing river flows. The work includes mobilization/demobilization, river diversion, rock excavation, rock foundation preparation including placement of dental concrete, placement of roller-compacted concrete, outlet works sealing, and incidental related work. This effort is to include all associated works required and described within this Contract package
Project Background. The Sediment Retention Structure was constructed in the Late 80's to store the sediment coming off the avalanche area so that the sediment does not flow down to the low Cowlitz River. The main objective for the project is to keep the level of Protection on the levee systems from Castle Rock to Lexington. There has already been one crest raise in 2012 and this will be the second of three planned crest raises.
The project purpose is to construct an increased level of sediment retention structure providing additional storage and allowing existing river flows. The work includes mobilization/demobilization, river diversion, rock excavation, rock foundation preparation including placement of dental concrete, placement of roller-compacted concrete, outlet works sealing, and incidental related work. This effort is to include all associated works required and described within this Contract package.
The work will be located at the Sediment Retention Structure on the North Fork Toutle River in Cowlitz County, Washington, off of Highway 504. Contractor access to the work site will be from gravel access roads on the dam site, the gravel roadway on top of the embankment dam, the top of the concrete outlet works structure, and a paved roadway on the spillway approach pier west of the existing spillway crest.
Purpose: The project purpose is to construct an increased level of sediment retention structure providing additional storage and allowing existing river flows. The work includes mobilization/demobilization, river diversion, rock excavation, rock foundation preparation including placement of dental concrete, placement of roller-compacted concrete, outlet works sealing, and incidental related work. This effort is to include all associated works required and described within this Contract package.
The work will be located at the Sediment Retention Structure on the North Fork Toutle River in Cowlitz County, Washington, off of Highway 504. Contractor access to the work site will be from gravel access roads on the dam site, the gravel roadway on top of the embankment dam, the top of the concrete outlet works structure, and a paved roadway on the spillway approach pier west of the existing spillway crest
Update #6 ·
***25-AUG-25*** Amendment 0001 has an updated Wage Determination. Also FIO from 1991 and 2012 respectively.
***01-AUG-25*** Added Plans: Vol II are the For Information Only (FIO) sheets showing previous work done for the SRS, including investigation, RCC and valvehouse (to decommission). The Vol II sheets only have previous work or existing conditions.
***28-JUL-25*** Plans have been uploaded. We have Modeling files for this solicitation that cannot be uploaded, please email me Andrew.J.Sprys@usace.army.mil and I can send these through DoD Safe.
***24-JUL-25*** Having difficulty trying to upload the plans/drawings but we're working on it and they will be available as soon as we are able.
Description of Requirement: The project purpose is to The U.S. Army Corps of Engineers, Portland District, has a requirement to construct an increased level of sediment retention structure providing additional storage and allowing existing river flows. The work includes mobilization/demobilization, river diversion, rock excavation, rock foundation preparation including placement of dental concrete, placement of roller-compacted concrete, outlet works sealing, and incidental related work. This effort is to include all associated works required and described within this Contract package
Project Background. The Sediment Retention Structure was constructed in the Late 80's to store the sediment coming off the avalanche area so that the sediment does not flow down to the low Cowlitz River. The main objective for the project is to keep the level of Protection on the levee systems from Castle Rock to Lexington. There has already been one crest raise in 2012 and this will be the second of three planned crest raises.
The project purpose is to construct an increased level of sediment retention structure providing additional storage and allowing existing river flows. The work includes mobilization/demobilization, river diversion, rock excavation, rock foundation preparation including placement of dental concrete, placement of roller-compacted concrete, outlet works sealing, and incidental related work. This effort is to include all associated works required and described within this Contract package.
The work will be located at the Sediment Retention Structure on the North Fork Toutle River in Cowlitz County, Washington, off of Highway 504. Contractor access to the work site will be from gravel access roads on the dam site, the gravel roadway on top of the embankment dam, the top of the concrete outlet works structure, and a paved roadway on the spillway approach pier west of the existing spillway crest.
Purpose: The project purpose is to construct an increased level of sediment retention structure providing additional storage and allowing existing river flows. The work includes mobilization/demobilization, river diversion, rock excavation, rock foundation preparation including placement of dental concrete, placement of roller-compacted concrete, outlet works sealing, and incidental related work. This effort is to include all associated works required and described within this Contract package.
The work will be located at the Sediment Retention Structure on the North Fork Toutle River in Cowlitz County, Washington, off of Highway 504. Contractor access to the work site will be from gravel access roads on the dam site, the gravel roadway on top of the embankment dam, the top of the concrete outlet works structure, and a paved roadway on the spillway approach pier west of the existing spillway crest
Update #5 ·
***01-AUG-25*** Added Plans: Vol II are the For Information Only (FIO) sheets showing previous work done for the SRS, including investigation, RCC and valvehouse (to decommission). The Vol II sheets only have previous work or existing conditions.
***28-JUL-25*** Plans have been uploaded. We have Modeling files for this solicitation that cannot be uploaded, please email me Andrew.J.Sprys@usace.army.mil and I can send these through DoD Safe.
***24-JUL-25*** Having difficulty trying to upload the plans/drawings but we're working on it and they will be available as soon as we are able.
Description of Requirement: The project purpose is to The U.S. Army Corps of Engineers, Portland District, has a requirement to construct an increased level of sediment retention structure providing additional storage and allowing existing river flows. The work includes mobilization/demobilization, river diversion, rock excavation, rock foundation preparation including placement of dental concrete, placement of roller-compacted concrete, outlet works sealing, and incidental related work. This effort is to include all associated works required and described within this Contract package
Project Background. The Sediment Retention Structure was constructed in the Late 80's to store the sediment coming off the avalanche area so that the sediment does not flow down to the low Cowlitz River. The main objective for the project is to keep the level of Protection on the levee systems from Castle Rock to Lexington. There has already been one crest raise in 2012 and this will be the second of three planned crest raises.
The project purpose is to construct an increased level of sediment retention structure providing additional storage and allowing existing river flows. The work includes mobilization/demobilization, river diversion, rock excavation, rock foundation preparation including placement of dental concrete, placement of roller-compacted concrete, outlet works sealing, and incidental related work. This effort is to include all associated works required and described within this Contract package.
The work will be located at the Sediment Retention Structure on the North Fork Toutle River in Cowlitz County, Washington, off of Highway 504. Contractor access to the work site will be from gravel access roads on the dam site, the gravel roadway on top of the embankment dam, the top of the concrete outlet works structure, and a paved roadway on the spillway approach pier west of the existing spillway crest.
Purpose: The project purpose is to construct an increased level of sediment retention structure providing additional storage and allowing existing river flows. The work includes mobilization/demobilization, river diversion, rock excavation, rock foundation preparation including placement of dental concrete, placement of roller-compacted concrete, outlet works sealing, and incidental related work. This effort is to include all associated works required and described within this Contract package.
The work will be located at the Sediment Retention Structure on the North Fork Toutle River in Cowlitz County, Washington, off of Highway 504. Contractor access to the work site will be from gravel access roads on the dam site, the gravel roadway on top of the embankment dam, the top of the concrete outlet works structure, and a paved roadway on the spillway approach pier west of the existing spillway crest
Update #4 ·
***28-JUL-25*** Plans have been uploaded. We have Modeling files for this solicitation that cannot be uploaded, please email me Andrew.J.Sprys@usace.army.mil and I can send these through DoD Safe.
***24-JUL-25*** Having difficulty trying to upload the plans/drawings but we're working on it and they will be available as soon as we are able.
Description of Requirement: The project purpose is to The U.S. Army Corps of Engineers, Portland District, has a requirement to construct an increased level of sediment retention structure providing additional storage and allowing existing river flows. The work includes mobilization/demobilization, river diversion, rock excavation, rock foundation preparation including placement of dental concrete, placement of roller-compacted concrete, outlet works sealing, and incidental related work. This effort is to include all associated works required and described within this Contract package
Project Background. The Sediment Retention Structure was constructed in the Late 80's to store the sediment coming off the avalanche area so that the sediment does not flow down to the low Cowlitz River. The main objective for the project is to keep the level of Protection on the levee systems from Castle Rock to Lexington. There has already been one crest raise in 2012 and this will be the second of three planned crest raises.
The project purpose is to construct an increased level of sediment retention structure providing additional storage and allowing existing river flows. The work includes mobilization/demobilization, river diversion, rock excavation, rock foundation preparation including placement of dental concrete, placement of roller-compacted concrete, outlet works sealing, and incidental related work. This effort is to include all associated works required and described within this Contract package.
The work will be located at the Sediment Retention Structure on the North Fork Toutle River in Cowlitz County, Washington, off of Highway 504. Contractor access to the work site will be from gravel access roads on the dam site, the gravel roadway on top of the embankment dam, the top of the concrete outlet works structure, and a paved roadway on the spillway approach pier west of the existing spillway crest.
Purpose: The project purpose is to construct an increased level of sediment retention structure providing additional storage and allowing existing river flows. The work includes mobilization/demobilization, river diversion, rock excavation, rock foundation preparation including placement of dental concrete, placement of roller-compacted concrete, outlet works sealing, and incidental related work. This effort is to include all associated works required and described within this Contract package.
The work will be located at the Sediment Retention Structure on the North Fork Toutle River in Cowlitz County, Washington, off of Highway 504. Contractor access to the work site will be from gravel access roads on the dam site, the gravel roadway on top of the embankment dam, the top of the concrete outlet works structure, and a paved roadway on the spillway approach pier west of the existing spillway crest
Update #3 ·
***28-JUL-25*** Plans have been uploaded.
***24-JUL-25*** Having difficulty trying to upload the plans/drawings but we're working on it and they will be available as soon as we are able.
Description of Requirement: The project purpose is to The U.S. Army Corps of Engineers, Portland District, has a requirement to construct an increased level of sediment retention structure providing additional storage and allowing existing river flows. The work includes mobilization/demobilization, river diversion, rock excavation, rock foundation preparation including placement of dental concrete, placement of roller-compacted concrete, outlet works sealing, and incidental related work. This effort is to include all associated works required and described within this Contract package
Project Background. The Sediment Retention Structure was constructed in the Late 80's to store the sediment coming off the avalanche area so that the sediment does not flow down to the low Cowlitz River. The main objective for the project is to keep the level of Protection on the levee systems from Castle Rock to Lexington. There has already been one crest raise in 2012 and this will be the second of three planned crest raises.
The project purpose is to construct an increased level of sediment retention structure providing additional storage and allowing existing river flows. The work includes mobilization/demobilization, river diversion, rock excavation, rock foundation preparation including placement of dental concrete, placement of roller-compacted concrete, outlet works sealing, and incidental related work. This effort is to include all associated works required and described within this Contract package.
The work will be located at the Sediment Retention Structure on the North Fork Toutle River in Cowlitz County, Washington, off of Highway 504. Contractor access to the work site will be from gravel access roads on the dam site, the gravel roadway on top of the embankment dam, the top of the concrete outlet works structure, and a paved roadway on the spillway approach pier west of the existing spillway crest.
Purpose: The project purpose is to construct an increased level of sediment retention structure providing additional storage and allowing existing river flows. The work includes mobilization/demobilization, river diversion, rock excavation, rock foundation preparation including placement of dental concrete, placement of roller-compacted concrete, outlet works sealing, and incidental related work. This effort is to include all associated works required and described within this Contract package.
The work will be located at the Sediment Retention Structure on the North Fork Toutle River in Cowlitz County, Washington, off of Highway 504. Contractor access to the work site will be from gravel access roads on the dam site, the gravel roadway on top of the embankment dam, the top of the concrete outlet works structure, and a paved roadway on the spillway approach pier west of the existing spillway crest
Update #2 ·
***24-JUL-25*** Having difficulty trying to upload the plans/drawings but we're working on it and they will be available as soon as we are able.
Description of Requirement: The project purpose is to The U.S. Army Corps of Engineers, Portland District, has a requirement to construct an increased level of sediment retention structure providing additional storage and allowing existing river flows. The work includes mobilization/demobilization, river diversion, rock excavation, rock foundation preparation including placement of dental concrete, placement of roller-compacted concrete, outlet works sealing, and incidental related work. This effort is to include all associated works required and described within this Contract package
Project Background. The Sediment Retention Structure was constructed in the Late 80's to store the sediment coming off the avalanche area so that the sediment does not flow down to the low Cowlitz River. The main objective for the project is to keep the level of Protection on the levee systems from Castle Rock to Lexington. There has already been one crest raise in 2012 and this will be the second of three planned crest raises.
The project purpose is to construct an increased level of sediment retention structure providing additional storage and allowing existing river flows. The work includes mobilization/demobilization, river diversion, rock excavation, rock foundation preparation including placement of dental concrete, placement of roller-compacted concrete, outlet works sealing, and incidental related work. This effort is to include all associated works required and described within this Contract package.
The work will be located at the Sediment Retention Structure on the North Fork Toutle River in Cowlitz County, Washington, off of Highway 504. Contractor access to the work site will be from gravel access roads on the dam site, the gravel roadway on top of the embankment dam, the top of the concrete outlet works structure, and a paved roadway on the spillway approach pier west of the existing spillway crest.
Purpose: The project purpose is to construct an increased level of sediment retention structure providing additional storage and allowing existing river flows. The work includes mobilization/demobilization, river diversion, rock excavation, rock foundation preparation including placement of dental concrete, placement of roller-compacted concrete, outlet works sealing, and incidental related work. This effort is to include all associated works required and described within this Contract package.
The work will be located at the Sediment Retention Structure on the North Fork Toutle River in Cowlitz County, Washington, off of Highway 504. Contractor access to the work site will be from gravel access roads on the dam site, the gravel roadway on top of the embankment dam, the top of the concrete outlet works structure, and a paved roadway on the spillway approach pier west of the existing spillway crest
Update #1 ·
Description of Requirement: The project purpose is to The U.S. Army Corps of Engineers, Portland District, has a requirement to construct an increased level of sediment retention structure providing additional storage and allowing existing river flows. The work includes mobilization/demobilization, river diversion, rock excavation, rock foundation preparation including placement of dental concrete, placement of roller-compacted concrete, outlet works sealing, and incidental related work. This effort is to include all associated works required and described within this Contract package
Project Background. The Sediment Retention Structure was constructed in the Late 80's to store the sediment coming off the avalanche area so that the sediment does not flow down to the low Cowlitz River. The main objective for the project is to keep the level of Protection on the levee systems from Castle Rock to Lexington. There has already been one crest raise in 2012 and this will be the second of three planned crest raises.
The project purpose is to construct an increased level of sediment retention structure providing additional storage and allowing existing river flows. The work includes mobilization/demobilization, river diversion, rock excavation, rock foundation preparation including placement of dental concrete, placement of roller-compacted concrete, outlet works sealing, and incidental related work. This effort is to include all associated works required and described within this Contract package.
The work will be located at the Sediment Retention Structure on the North Fork Toutle River in Cowlitz County, Washington, off of Highway 504. Contractor access to the work site will be from gravel access roads on the dam site, the gravel roadway on top of the embankment dam, the top of the concrete outlet works structure, and a paved roadway on the spillway approach pier west of the existing spillway crest.
Purpose: The project purpose is to construct an increased level of sediment retention structure providing additional storage and allowing existing river flows. The work includes mobilization/demobilization, river diversion, rock excavation, rock foundation preparation including placement of dental concrete, placement of roller-compacted concrete, outlet works sealing, and incidental related work. This effort is to include all associated works required and described within this Contract package.
The work will be located at the Sediment Retention Structure on the North Fork Toutle River in Cowlitz County, Washington, off of Highway 504. Contractor access to the work site will be from gravel access roads on the dam site, the gravel roadway on top of the embankment dam, the top of the concrete outlet works structure, and a paved roadway on the spillway approach pier west of the existing spillway crest
Files
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Notice history
| Notice | Type | Posted |
|---|---|---|
| This notice | Solicitation | |
| Mt. St. Helens Sediment Retention Structure Crest Raise | Pre-Solicitation | |
| Mt. St. Helens Sediment Retention Structure 2nd Crest Raise | Pre-Solicitation |
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