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Highlights
THE BOTTOM LINE
GPRS Video Pipe Inspection services helped a contractor in Seattle assess how to repair cracked sanitary sewer lines under a new high school campus.
Industry
Service
Location
Seattle, Washington
GPRS Project Manager Insight
Deliverables
PROJECT APPLICATION
ASK
Task
Locate, map, and catalogue defects in cast iron sanitary sewer lines in and around a newly built high school near Lake Washington
PROBLEM
- Rainier Beach High School’s new four-story school building was beginning to sink into the ground, causing the cast iron sanitary sewer pipes underneath to crack and break
- A plumber working on the project had sewer inspection equipment, but had been unable to locate the defects and breaks in the pipes
Solution
- GPRS deployed a remote-controlled sewer inspection crawler, push-fed sewer scope, and utilized electromagnetic (EM) locating to map the sewer lines and find the defects
- The GPRS Project Manager returned to the site several times to inspect additional lines after jetting had cleared the blockages he’d identified during his initial investigation
- All the data was compiled into a NASSCO-compliant WinCan report, with every defect ranked by severity and identified with photo and video evidence
Benefits
- The data collected by GPRS allowed the client to effectively plan a large-scale repair to address the breaking sewer pipes
- The client now knows the precise location of all defects and the severity of the issues, allowing them to avoid costly and destructive exploratory potholing address the problem in a timely manner
CASE STUDY GALLERY
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