72” & 84” CMP Culverts

Project Location

Coos County, OR.

Construction cost

$220,000 - $1023/ft.

Construction Start/End

07/2002 - 09/2002

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: 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?

No.

References

Mr. John Woodroof
Oregon Dept. of Transportation
Telephone: 503-986-3366

Methodology

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.

Hurdles

Problems encountered during construction:

Some problems with grout mixer producing inconsistent grout mixes; change to Danby recommended mixer solved problem.

Problems encountered after construction:

None