58”/60”/66” RCP Sewer

Project Location
1900 Block of Probandt Street, San Antonio, TX.
Construction cost
Unknown
Construction Start/End
08/1999 - 09/1999

Details

When was it constructed and how long has it been in service:
Unknown
Dimensions:

Diameter of line, sewer pipe material (RCP, MCIP, brick, etc.), length of rehab portion: 58”/60”/66” RCP Sewer; lengths 110’/20’/524’; severe corrosion in crown.

Depth of pipe:
15 feet
Depth of ground water:
10 feet
Health and safety:
Used conventional confined space entry program
Has any re-inspection been performed? What was the condition of the pipe?
Yes, latest inspection was 2019 and found to be in great condition.
References

Mr. Jeffrey J. Haby, P.E., Project Engineer
San Antonio Water System, SAWS Project No. 99-3528
Telephone: 210-704-7182

Methodology

Ventilation and odor control used:
Fresh air pumped into pipe past upstream air dam; maintained sealed lids during non-work periods, and adequate ventilation to carry odors downstream during the work periods.
Rehab method used:
Danby Panel Lok III (spirally wound) with full annulus grouting with cementitious grout with minimum compressive strength of 5000 psi.
Cleaning method used (if required) and who cleaned the line:
High pressure (3,000 - 10,000 psi) water blasting performed by the Danby licensee (Kinsel Industries Inc.).
Method of flow bypass or diversion, if used:
Flows 100% diverted during work day, but reinstated during non-work periods.

Hurdles

Problems encountered during construction:
None
Problems encountered after construction:
None