Culvert Rehabilitation

[PSU94]

I am responsible for the rehabilitation of several large diameter (42") CMP storm sewers that have rusted out inverts and corrosion above the springline. I am considering a shotcrete lining or some other type of cementitious liner. Does anyone have any experience with this type of rehab method? Any standard procedures or specs?

 

[cvg]

PE liner might be a better option

 

[gbam]

cvg is on target with a PE liner. Or Jack and bore new pipe next to old one and slurry fill the old one.

 

[DMcGrath]

ISCO has a snap-fit PE-sliplining system that is pretty easy to install.

http://www.isco-pipe.com/reference_center/pipe_installation.asp

 

[dicksewerrat]

CIPP will also work for CMP. Most DOT's have a spec for CIPP. ASCE has one also, I think.

Richard A. Cornelius, P.E.

http://WWW.amlinereast.com

 

[PSU94]

Thanks, guys. I will definetly do some research on the PE liner option. I've lined small diameter (8" - 12") sanitary sewers with CIPP before, but, its been at least 8 years since I've done so and back then was under the impression that large diameter CIPP was cost prohibitive. I guess times have changed. Thank you again for the advise!

 

[gbam]

My only concern would be the structural condition of the existing CMP. If there is significant loss due to rust, your only option may be to replace it.

 

[cvg]

with a good lining system, you don't need the original cmp

 

[gbam]

cvg;
These plastic liners have the same structural nature as the CMP? Which system do you use the most? I would like to check out the liners.