Sources Sought.pdf

Mill Creek Fish Passage Low Flow Channel Notching Sources Sought Notice: W912EF23RSS0042

The US Army Corps of Engineers, Walla Walla District is seeking sources to provide personnel, materials, supplies, equipment, transportation, supervision and other items and services for the following: Mill Creek Fish Passage Low Flow Channel Notching. The North American Industry Classification System (NAICS) code for this project is 237990 Other Heavy and Civil Engineering Construction and the associated small business size standard is $45,000,000.00.

Performance and payment bonds will be required. The magnitude of construction is estimated to be between $5,000,000 and $10,000,000.

This sources-sought announcement is a tool to identify businesses with the capability to accomplish the work. This is not a solicitation. Only those firms who respond to this announcement by submitting the following information will be used in determining whether to set aside this requirement.

A) A list of current or past projects demonstrating technical experience with work of a similar nature to that listed in the Summary Scope of Work. For each project submitted, provide a brief narrative statement of the work involved, your firm’s role in the project, performance period, the dollar value and the completion date. Include a statement detailing any special qualifications and certifications, applicable to the scope of this project, held by your firm and/or in-house personnel.

B) A reference list for each of the projects submitted in A) above. Include the name, title, phone number and email address for each reference.

C) Provide a statement of your firm’s business size (HUBZone, Service Disabled Veteran Owned, 8(a), small disadvantaged, or woman-owned) with regards to the NAICS code listed above.

D) Provide a statement that your firm intends to submit an offer on the project when it is advertised.

E) Provide a statement of your firm’s bonding capacity. A statement from your surety is NOT required.

F) Cage Code and DUNS number.

G) Bidder requirements as outlined in Summary of Scope of Work.

Submit this information to Sean Molina, Contract Specialist, via email to Sean.Molina@usace.army.mil. Your response to this notice must be received on or before 3:00 p.m. (PST) on 08 September 2023.

Summary of Scope of Work:

This project involves the construction of new weir structures and modification of existing stabilizers in the U.S. Army Corps of Engineers (USACE) managed portion of Mill Creek in Walla Walla, WA to meet agency fish passage criteria. This project also involves excavation of a low flow channel within the reaches between new weirs. Three prototype weirs were constructed in 2012 and are the basis of this project. The 2012 contract award drawings are included for reference.

Prior to in-stream demolition, excavation, and construction efforts, the contractor will be responsible for diversion and care of water in Mill Creek. Flows will be diverted around the worksite throughout construction activities. During the in-water work window (June - October), flows in Mill Creek are expected to range from 20 to 50 CFS. The exact composition of the Mill Creek bed is unknown, but it is expected to be highly porous sands and cobbles with a mixture of fine sediments. There are no known sources of groundwater inflow within the reach where dewatering is required. However, the stream bed composition passes groundwater flow readily so that even with no leakage on a dewatering structure, pumping will be necessary to maintain a dry work site. Concrete capped gabion basket stabilizers span the width of the channel, spaced approximately 60 to 80-ft apart in the streamwise direction. The diversion and care of water effort will also include trapped fish capture and release as well as water quality monitoring.

On-site work will be performed during two in-water work windows. The contractor will allow for the continued passage of water down Mill Creek below the work site and into the Yellowhawk/Garrison diversion channel throughout these windows. Flows down Mill Creek and the Yellowhawk/Garrison diversion channel must be adjustable at the direction of USACE. The contractor will also provide the ability to pass water to an irrigation channel called Jones Ditch.

Work within the reach of the five most upstream stabilizers must be completed by July 26th, 2024, as well as removal of all material and equipment within this reach. Subsequently, the contractor is required to sequence the remaining work in an upstream to downstream manner, such that at the end of each in-water work window, all work is completed upstream of the last downstream weir completed. The contractor must be completely out of the water when the in-water work window is finished each year.

Physical construction work starting in June 2024.

In-water work window 1: June 15, 2024 – October 31, 2024 In-water work window 2: June 15, 2025 – October 31, 2025

Physical Completion anticipated October 2025.

Throughout the two in-water work windows, the contractor will construct 80 new weir structures, each to include the reinforced concrete structure, excavation and grading of a compacted bed for the structure, tie-in to the existing stabilizers, and excavation and grading of the low flow channel. The reinforced concrete structures will be formed and placed and/or precast and installed on a newly graded and compacted bed for precise elevation control. Sixty-three (63) of the structures will be double weir structures, with internal dimensions approximately 20-ft by 11-ft with walls of various heights and less than one-foot-thick.

Seventeen (17) of the structures will be single weir structures, with internal dimensions of approximately 20-ft by 6-ft with walls less than one-foot-thick.

Modifications, including partial demolition, of the existing concrete capped gabion basket stabilizers will be required to install and tie-in the new weir structures. This location will vary laterally across the width of the stream at each stabilizer. The effort includes demolition of the section of stabilizer where the weir structure will be installed and modification as necessary to tie-in the weir structure. Excavation will be required between stabilizers to form a sloped low flow channel between each weir structure and the upstream scour hole. Material to be excavated is estimated around 12,000 CY.

Access to the Mill Creek Channel will be via the south levy. The levee road constricts down to 12-ft wide. The Contractor must minimize equipment travel into and out of the channel, so as to avoid damage to the levee bank. The stabilizers in the channel cannot support the weight of heavy equipment and must be protected. Refer to the award drawings from contract 11-D-0020- 0002 prototype weirs for typical site information.

Bidder Requirements:

1) Contractor is required to submit two projects of similar scope and complexity in the past ten years.

Projects of similar scope consists of having constructed structures with the following minimum requirements:

a) Cast-in-place or precast concrete structures of similar or greater size, of the method intended for this project.

b) Dewatering systems similar to the conditions and requirements for this project.\

c) Limited site access in and around a body of water similar to the access for this project.

All on-site work shall be performed in accordance with the Corps of Engineers Safety and Health Requirements Manual (EM 385-1-1).

The Contractor will be responsible for establishing and managing an effective on-site Safety and Health program in accordance with EM 385-1-1 that will require the development and submission of a comprehensive project specific Accident Prevention Plan for Government acceptance. In addition, the Contractor will be required to develop and submit for Government acceptance Activity Hazard Analyses for each phase of work that complies with EM 385-1-1.

A Site Safety and Health Officer (SSHO) employed by the prime contractor shall be required for each shift of the contractor’s on-site operations. The SSHO shall possess a minimum of 5-years’ experience in construction safety on similar projects, shall have completed the 30-Hour OSHA

Construction Safety training within the last 5-years, and shall have completed at least 24-hours of formal safety training each year for the past 5-years.

The Contractor will be responsible for establishing and managing an effective Contractor Quality Control (CQC) System that will require the development and submission of a comprehensive project specific CQC Plan for Government acceptance. A CQC System Manager employed by the prime contractor shall be required to be on-site for each shift of the Contractor’s operations.

The CQC System Manager must possess a minimum of 5-years relevant experience in a supervisory or management position such as Quality Control Manager, Quality Assurance Manager, or Construction Manager directly involved in the management of construction quality at the project site. In addition, the CQC System Manager shall have completed the course entitled “Construction Quality Management for Contractors” within the last 5-years.

The Contractor will be required to use the Government-furnished Construction Contractor Module (referred to as QCS) of the Resident Management System (RMS) to record, maintain, and submit various information throughout the contract period. QCS is a Windows-based program that can be run on a stand-alone personal computer or on a network. The Government will make the QCS software available to the Contractor after contract award.

The project will involve the development and management of Contractor furnished submittals for items such as pre-construction plans, product data, test reports, and contract close-out documentation as required by the technical specifications of the contract.

Miscellaneous work within the project includes the delivery of As-Built Drawings.