Specifications include, but are not limited to: Final Design 1. Complete a final design for replacing the concrete pipe. The design will include design reviews at 30%, 60% and 90% or as necessary. This will also include any survey requirements such as topography and of the existing structure. 2. The design drawings and specifications will be stamped by a Professional Engineer licensed in the State of New Mexico. 3. Perform project and budget management for the duration of the project including surveying, any required testing and a final construction schedule. 4. The Engineer in collaboration with the Department of Water Resources will provide construction oversight of the project. Construction 1. The project will be constructed according to the final design. 2. Detach the connection to the HDPE pipe and uncover, remove and properly dispose of the existing concrete inlet structure and the buried concrete pipe up the hill. 3. Expose and remove the existing vertical airway that goes from inside the tunnel to the ground surface on the side of the hill and replace with a minimum 36-inch diameter manhole. 4. Furnish and install approximately 300 feet of new 36-inch diameter HDPE pipe from the end of the recently installed HDPE pipe, up the side of the hill and terminate at the existing outlet at the start of the tunnel. All work includes earthwork, unloading/handling HDPE pipe, mechanical work, concrete work, welding, trenching, fusing, backfilling, compaction, final grading and connecting back to the existing HDPE pipe. The installation will meet or exceed minimum design standards according to the final design and specifications. 5. The Contractor will coordinate with the Owner (Navajo Nation) to ensure all required permits, necessary clearances, easement, traffic control plan, safety plan, storm water pollution protection plan, etc. as needed to execute the project are obtained prior to construction. 6. The Contractor will provide all materials, freight, labor and equipment for the project. 7. Deliverables include as-built drawings, survey data, testing information and a final report.
