MR87-1_REDUCED.pdf

Arkansas Department of TransportationMr . Paul Bedusk, Roadway Design EngineerApril 17, 1987CULVERT PIPE USAGE SURVEY1. Does your State specify Corrugated Metal Pipe (CMP) orReinforced Concrete Pipe (RCP) or do you allow the contractorthe option o f using either type of material for culverts onnew construction?All Primary System X-Road drainage structures arerequired to be concrete.Arkansas allows CSP a nd RCP as alternates onSecondary System.On s ide roads and entrances they allow alternate ofRCP, CSP and Corrugated Aluminum Pipe.2 . What is the policy used to determine which type of culvertpipe is used at various locations?They are planning a study on pipe durability .See Number 1.3. Do you have a specified design life for the following? Ifso, how long?a . Roadbed - No set policy. yrs.Considered indefinite.b . Pipe Culverts No yrs.c . Concrete Box Culverts-Structural Plate Pipe No yrs .4 . Do you use Coated Corrugated Metal Pipe? If so, whatcoatings are used and for what conditions ?5 . Whatpipe,They have some trial installations of plastic andpolymer coated pipes.Mr. Bedusk said the FHWA informed them PolymerCoated was not equal alternate to concrete .is the average cost per linear foot for the followingi nc luding installation:a.b .24" CMP SlB . 99/1in. ft. , 1986 Average Installed24" RCP $29.13/lin. ft. , 1986 Av e rage InstalledPricePrice- 103 -