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Culvert Liners High Value Research. Sue Sillick Montana Department of Transportation July 2011. RESEARCH PROGRAMS. Purpose of Project. Install two types of culvert liners to restore function and structural integrity to corrugated steel pipe (CSP) Cure-in-Place (CIPP)
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Culvert LinersHigh Value Research Sue Sillick Montana Department of Transportation July 2011 RESEARCH PROGRAMS
Purpose of Project Install two types of culvert liners to restore function and structural integrity to corrugated steel pipe (CSP) Cure-in-Place (CIPP) High Density Polyethylene (HDPE) RESEARCH PROGRAMS
Purpose of Project Why culvert liners vs. replacing the culverts? Improve worker and public safety during construction Minimize construction impact on the public and the environment Eliminate construction traffic delays and congestion Eliminate construction landfill waste Increase culvert performance and life Decrease maintenance costs RESEARCH PROGRAMS
Culvert Condition Prior to Construction Culvert Outlet Culvert Inlet RESEARCH PROGRAMS
Cure-in-Place Culvert Liner Installation Resin impregnated, three-layer polyester Cure-in-Place Pipe (CIPP) liner being inserted into existing culvert using compressed air RESEARCH PROGRAMS
Cure-in-Place Culvert Liner Installation CIPP liner under cure using low-pressure steam RESEARCH PROGRAMS
Cure-in-Place Culvert Liner Installation Completed CIPP liner inlet Completed CIPP liner outlet RESEARCH PROGRAMS
Cure-in-Place Culvert Liner Installation Example of work zone during the CIPP installation RESEARCH PROGRAMS
HDPE Culvert Liner Installation Seam welding the HDPE pipe for insertion into the existing culvert RESEARCH PROGRAMS
HDPE Culvert Liner Installation Inserting the finished HDPE pipe into the culvert RESEARCH PROGRAMS
HDPE Culvert Liner Installation HDPE pipe fully inserted and ready for grouting phase RESEARCH PROGRAMS
HDPE Culvert Liner Installation Completed HDPE liner outlet with grouted bulkhead RESEARCH PROGRAMS
HDPE Culvert Liner Installation Example of work zone in HDPE pipe installation RESEARCH PROGRAMS
Condition at Three Years HDPE CIPP RESEARCH PROGRAMS
Culvert Liner Evaluation Semi-Annual evaluations are being conducted for an initial 5-year period, including: Internal culvert deflection Lining integrity Leakage Flow Discoloration Other visual distress RESEARCH PROGRAMS
Questions? Contact Sue Sillick ssillick@mt.gov 406-444-7693 Project website: http://www.mdt.mt.gov/research/projects/macpass_culvert.shtml RESEARCH PROGRAMS