The Yakama Nation is requesting proposals for improvements of Wanawish Dam on the Yakima River (Benton County, WA) to develop alternatives that improve irrigation reliability, fish passage, fish harvest, fish monitoring, and minimize operation and maintenance costs. Wanawish Dam was constructed in 1892 and is located at river mile 18 on the Yakima River. The facility comprises a low-head diversion dam, fish ladders, and canal headworks on both riverbanks with their associated ancillary features, including fish screening and bypass systems. The Yakama Nation desires to improve fish passage, fish monitoring, and operations at the Wanawish Dam through design and construction/reconstruction of headworks, spillway, and fish passage improvements to achieve long-term, multidisciplinary objectives.
Davis–Bacon wages apply to this contract. The successful contractor will be required to comply with federal laws and regulations and applicable provisions of the Tribal Employment Rights Ordinance and other tribal laws. Estimated cost is $400,000–$800,000. This RFP will also be available through the Daily Journal of Commerce.
Please contact Scott Favrot with any questions: favs@yakamafish-nsn.gov.
