54"x36" Brick Fifth Street Rehab

Project Location
San Jose, California.
Construction cost
$2,380,000 - $378/ft.
Construction Start/End
11/1992 - 02/1993


When was it constructed and how long has it been in service:
Built in place in 1880.

Diameter of line, sewer pipe material (RCP, MCIP, brick, etc.), length of rehab portion:54"x36" Egg, Brick, 6300 feet of rehab.

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?

Mr. Jay Schrock, P.E.
JSC International
Tel: 530-238-2018


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 psi) water blasting performed by the Danby licensee (Rondeau Bay Construction, Inc.).
Method of flow bypass or diversion, if used:
Flows 100% pumped/diverted during work day, but reinstated during non-work periods. Laterals remained active at all times.


Problems encountered during construction:
No significant problems.
Problems encountered after construction: