Project Update

Construction of the first phase, Restoration of Existing Sewer Lines and Manholes, is underway by SAK Construction, LLC. This project will rehabilitate the existing sewer piping and manholes that were damaged from the flood.

The procurement process for securing contractors on the Lift Station and Forcemains and Hazard Mitigation and Stabilization of Sewer Lines packages will begin soon.

PROJECT BENEFITS

  • Potential reduction in infiltration and inflow into the collection system

  • Extension of the useful service life of the collection system

  • Prevention of damage to the interceptor from future flood events

  • Improved flow mechanics through interceptor

Project History and Need

  • 2017-2018 Molzen Corbin hired to evaluate the 30% Design, prepare value engineering report, and revise the scope to be more affordable and within the constraints of the FEMA Public Assistance Grant requirements.

  • 2018-2019 Molzen Corbin prepares design documents for a project consisting of primarily repair and rehabilitation of the existing sewer line with additional in-river modifications designed to protect the sewer line from flood hazards. The three major scope elements are: 1) Restoration of Existing Sewer Lines and Manholes; 2) Lift Stations and Forcemains; and 3) Hazard Mitigation and Stabilization of Sewer Lines.

  • Construction of the first phase, Restoration of Existing Sewer Lines and Manholes, is underway by SAK Construction, LLC. This project will rehabilitate the existing sewer piping and manholes that were damaged from the flood.

  • The procurement phase for securing contractors on the Lift Station and Forcemains and Hazard Mitigation and Stabilization of Sewer Lines packages will begin soon.

PROJECT CHALLENGES

The existing interceptor is located in close proximity to the Rio Ruidoso, which presents the following challenges:

  • Accessibility to interceptor for construction activities

  • High ground water

  • Prevalence of rock in underlying soils

  • River channelization has increased flood hazards and degraded the river channel