72” & 84” CMP Culverts

Project Location
Coos County, OR.
Construction cost
$220,000 - $1023/ft.
Construction Start/End
07/2002 - 09/2002


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

Diameter of line, sewer pipe material (RCP, MCIP, brick, etc.), length of rehab portion: 72” and 84” CMP (125 ft of 72” and 90 ft of 84”).

Depth of pipe:
20-30 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. John Woodroof
Oregon Dept. of Transportation
Telephone: 503-986-3366


Ventilation and odor control used:
Not required (good natural ventilation).
Rehab method used:
Danby Panel Lok IIIE (84”) and Panel Lok III (72”) (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 contractor (Houshour Inc.).
Method of flow bypass or diversion, if used:
None required.


Problems encountered during construction:
Some problems with grout mixer producing inconsistent grout mixes; change to Danby recommended mixer solved problem.
Problems encountered after construction: