Specifications include, but are not limited to: Final Design – Bid item #1 1. Complete a typical design for replacement of concrete canal lining sections (~15’ length). 2. The design will also include required safety features such as rails/guardrails and ladders at the Baker Wash Siphon location. 3. 30%, 60% & 90% final design reviews with the Navajo Nation (NN) and the Bureau of Indian Affairs (BIA) in Shiprock, N.M. Design review meetings include presentation & comments on design drawings and specifications. An updated project schedule will be provided by the Contractor at each review. 4. Stamped final design report by a licensed Professional Engineer in the State of New Mexico with drawings & specifications. 5. Perform project and budget management for the duration of the project. Replace/Repair Concrete Lining (Off Irrigation season November – March) – Bid Item #2 1. Contractor will replace/repair existing concrete lining according to the typical final design at the proposed locations as shown on the diagrams. 2. This work includes clearing & grubbing, earthwork, herbicide application, concrete work, removal & re-establishing fence, backfill and final grading. 3. Concrete debris will be taken to a recycler and other debris will be disposed of at an approved landfill. Clean and Inspect Baker Wash Siphon According to Final Design (Off Irrigation season November –March) – Bid Item #3 1. Clean out the 84-inch diameter concrete siphon by pumping out water and debris. 2. Inspect entire length of the concrete siphon. 3. Perform repairs as identified by the inspection. Install Safety Features According to Final Design (Off-irrigation season November-March) – Bid Item #4 1. Concrete patching and repairs as required on the inlet & outlet of Baker Wash Siphon. 2. Furnish and install new screens at the inlet and outlet to prevent people from entering the siphon during the irrigation off-season. 3. Furnish and install safety rails at the inlet/outlet and guard rails at the bridge crossing. 4. Furnish and install safety rope/ladder on the inlet side. 5. Furnish and install other safety features identified in the final design.
