Rehabilitation and Completion of the Sábana Seca Sanitary Sewer System


This project encompassed two main phases: the condition assessment of the existing sanitary sewer system and the subsequent design for the completion and rehabilitation of the Sábana Seca Sanitary Sewer System. The Puerto Rico Aqueduct and Sewer Authority, facing challenges in previous construction attempts, sought ENTECH’s expertise to assess and design the essential components for project completion.

In the initial phase, the condition of the existing sanitary sewer system was evaluated through meticulous inspections of manholes and pipelines, covering approximately 3 miles of sewer lines and 110 manholes. Advanced technologies such as CCTV and Zoom Cameras were utilized for a comprehensive assessment. The findings guided the selection of manholes and sewer segments for rehabilitation, along with the determination of new sewer line alignments.

The subsequent design phase involved preparing construction documents for installing approximately 6 miles of sanitary sewer lines ranging from 8 to 18 inches in diameter. Additionally, about 2.5 miles of pipeline underwent rehabilitation through trenchless methods.

Funded by the EPA’s State Revolving Fund, the project successfully addressed critical sewer system needs.

  • Project Type Infrastructure (Water/Wastewater)
  • Services Contracted Design, Permitting & Services During Construction
  • Owner Puerto Rico Aqueduct and Sewer Authority
  • Client CH2MHILL
  • Contract Period November, 2009 to May, 2010
  • Construction Cost $7,000,000.00
  • Location Toa Baja, Puerto Rico