The Yakama Nation’s Yakama Reservation Watersheds Project (YRWP) is requesting bids for a Salmon Habitat Enhancement Project along Toppenish Creek, a tributary of the Yakima River, from July 1 -October 31, 2026. The project will involve all work elements and specifications found in the Project Plans attached to this bid packet.
A STRONGLY SUGGESTED pre-bid site tour will be held for this project on November 19th, 2026, at 1:00PM. Please follow the google maps (https://maps.app.goo.gl/fVTUdMnWnYZceGjD9) for the meeting location on Lateral C Road, near Harrah, WA. The site tour is anticipated to take 2-3 hours and muck boots are recommended. Please RSVP via email with Audrey Scott (scoa@yakamafish-nsn.gov) no later than November 18th, 2026 at 3:00pm.
Bid Submission Instructions
By 4:00 PM PST on December 21st , 2026, each contractor that wishes to be considered must have completed and submitted to the Yakama Nation a signed copy of the Toppenish Creek Dam Removals project (Exhibit B) along with all required supporting documentation. Please note that two bid sheets must be filled out, the Piggott Dam sheet and the Royal Dam sheet. Incomplete bid packages and bid packages received after the submission deadline cannot be considered. All competitive bid materials must be sent by parcel delivery service, postal mail, hand-delivered or emailed to:
Parcel Delivery
Yakama Nation Fisheries
Attn: Theresa Cripps
RE: Toppenish Dam Removals Project
PO Box 151
Shipping Address: 401 Fort Road
Toppenish, WA, 98948
Hand Delivery (Between the hours of 9 AM and 4 PM PST)
Attn: Theresa Cripps
RE: Toppenish Dam Removals Project
4690 WA-22
Toppenish WA, 98948
Email with the email subject as: “Toppenish Dam Removal Project Bid– Name of Firm”
Theresa Cripps (crit@yakamafish-nsn.gov)
Tana Hoptowit (hopt@yakamafish-nsn.gov)
Questions
All technical questions regarding this project are to be submitted no later than 3:00 p.m., December 10th to Audrey Scott at scoa@yakamafish-nsn.gov with the subject line reading, “Toppenish Dam Removals Project”. All project specific questions and responses to answers for this project will be available on-line by 4:00pm on December 14, 2026. If further Addenda are required to be issued, the bid closing date will be postponed.
DUE BY:
Tuesday December 21st, 2026 - 4:00 PM PDT
All contractors submitting bids for this project shall provide and/or demonstrate, at a minimum, the following:
- A list of experienced equipment operators that will be on-site during project construction. Please provide details of their work on in-stream passage improvement infrastructure within the past several years.
- A detailed construction timeline of how you propose to get all project tasks completed within the stated project timeline.
- A list of key pieces of heavy equipment that will be used in construction of the project and a daily standby rate for each piece of heavy equipment.
- Experience and preferably examples of the ability to create de-watered work areas through the use of coffering techniques.
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A cofferdam and surface water diversion plan. The de-watering system plans, at a minimum, shall indicate the following.
- Size of pumps, discharge piping, and piping appurtenances.
- Type of vibratory tool that will be used to install sheet pile.
- The personnel responsible for monitoring the dewatering system and dewatered excavations. The contact person must be available at all times, or a designated person must be specified in their absence. Clearly list the relevant personnel’s experience with installing sheet pile.
- Provisions to confine fuel and oil spills in the event of their occurrence.
- Plans to segregate construction water (contaminated with form oils, concrete residue, etc.) from clean water.
- Plan to dispose of the construction water and residue solids.
- A contingency plan must be provided as part of the approved plan that outlines the next steps if the initial plan does not work satisfactorily. This could include additional pumps, discharge of sediment laden water to areas further from the project area, or any other potential remedy if the inital de-watering plan is not adequate.
