Farmers Mutual Ditch Association Reach 1, San Juan County, New Mexico

The Government is seeking qualified, experienced sources capable of constructing approximately 4,500 feet of buried pipeline having an inner diameter of 72-inches (6-feet). The buried pipeline will be constructed within the alignment of an existing irrigation ditch which is carved in a large sandstone formation. The buried pipeline will be non-pressurized and will carry irrigation flows alongside a steep rock cliff which itself has a history of intermittent rock fall events. The slopes are extremely steep and due to their geological composition pose a potential rockfall hazard to construction workers working below. Prior to construction of the buried pipeline, light rock scaling shall be performed by experienced rock scaling professionals on the cliff faces to dislodge any loose rock. Subsequently the cliff faces shall be certified by a licensed professional geologist with rock scaling experience as safe before construction of the pipeline can begin. Currently it is anticipated that all rock scaling for this project can successfully be performed without the use of powered pneumatic or hydraulic tools or blasting. Once installed, the buried pipeline will serve as a new maintenance access road and will therefore be required to carry an AASHTO HS-20 traffic loading.

Division 31 -	Earthwork, Erosion and Sedimentation Controls.
Division 33 -	Utilities, Operation and Maintenance of Utilities, Operation and Maintenance of Sewer Utilities, TV Inspection of Sewer Pipelines, Instrumentation and Control for Utilities, Water Utilities, Water Utility Distribution Piping, Water Utility Distribution Equipment, Disinfecting of Water Utility Distribution, Water Utility Storage Tanks, Storm Drainage Utilities, Ponds and Reservoirs.