The Criteria for Inspection, Life Extension and Rehabilitation of Circular Corrugated Metal Culverts is a manual for the inspection, risk management, maintenance, life extension and rehabilitation of corrugated metal culverts. The manual is a merger and update of the department's Design Criteria for Rehabilitation of Circular Corrugated Metal Culverts and Appendix 14A Inspection and Treatment of Metal Culverts of the Road Drainage Manual.
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