Hazard Mitigation and Stabilization for Sewer Lines

The Sewer Line Hazard Mitigation and Stabilization project purpose is to mitigate future hazard from major storm events by protecting the sanitary sewer line from river erosion, degradation and meander. There will be 40 sites, along 12 miles of the Rio Ruidoso. Project work will include excavation of river and adjacent areas, downstream of sewer line river crossings and along the banks of the Rio Ruidoso. Scope of work for the existing sewer line includes installing nee flood and structural encasement to protect the sewer line; lowering and encasing the sewer line; installing grouted boulder grade control structures, grouted boulder bank protection, scour walls, and dumped river rock boulder channels to protect the sewer line; and protecting the river bank and manholes with stabilization and armoring. New sewer line sections, manholes, and encasement will also be installed. Additionally, the project will also include stream bank restoration, reseeding and planting of disturbed areas after construction.

Division 02 -	Existing Conditions, Environmental Assessment, Natural Environment Assessment, Water Remediation.
Division 03 -	Concrete, Precast Concrete.
Division 32 -	Exterior Improvements, Wetlands.
Division 33 -	Utilities, Sanitary Sewerage Utilities, Sanitary Utility Sewerage Piping, Sanitary Utility Sewerage Force Mains, Sanitary Utility Sewerage Structures.