Site work for a water / sewer project in Dayton, Washington. Completed plans call for site work for a water / sewer project.

There are currently Five addendums posted. For more information, please contact M.A. Mortenson Co. or Western Washington University. PPROJECT DESCRIPTION: The Columbia Conservation District is seeking formal bids for project installation and materials. Bid request(s) includes installation and materials for the 2023 Tucannon River Habitat Projects PA 26 Phases III/IV. This Salmonid Habitat Restoration Project is located on the Tucannon River, in Columbia County, SE Washington near Marengo. For additional project information email Aneesha Dieu, District Manager at districtmanager@columbiacd.com. Call (509) 382-4273 to schedule an appointment. Project Area (PA) 26 Phase III/IV is located at Tucannon Road ~MP 9, off of Highway 12 The RFB Coordinator will accept questions via email only through 3:00 pm Wednesday, December 7, 2022. Questions will be answered in writing by the RFB Coordinator and provided via email by 5:00 pm Friday, December 9, 2022. This Contract includes work as described below. The description is summarized and may not include specific reference to all incidental work elements required to complete the Contract. Include all labor, materials, equipment, and incidentals required for completion of the Work as shown on the Contract Drawings and specified herein. 1. Mobilization and demobilization 2. Site preparation, including: a) Establishing staging areas and Work access routes as indicated on the Contract Drawings; includes limited clearing and grubbing. b) Contractor to develop and implement elements of an approved Water Quality Management Plan. c) Contractor to develop and implement an approved Traffic Control Plan, where applicable. d) Contractor to develop and implement elements of an approved Care of Water Plan in preparation for excavation required for various elements of the Work. 3. Diversion and control of water during construction in accordance with the approved Care of Water Plan and other construction permit conditions. 4. Installing, maintaining during construction, and removing at construction completion temporary erosion and sediment control measures. 5. Installation of multiple large woody debris (LWD) and engineered log jam (ELJ) structures as shown on the Contract Drawings and as described in the Specifications. 6. Excavation of portions of existing spoils piles as shown on the Contract Drawings and as described in the Specifications.