Utilizing Snap-Tite slip line pipe as a direct burial cross pipe, construction and first interim report, October, 2007.
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Utilizing Snap-Tite slip line pipe as a direct burial cross pipe, construction and first interim report, October, 2007.

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  • English

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    • Abstract:
      The Maine Department of Transportation uses reinforced concrete, polymer coated corrugated metal,

      corrugated aluminum or corrugated polyethylene for highway cross pipes. Design life for cross pipe is 50

      plus years. Repair of failed cross pipes involves excavation and replacement resulting in high costs and

      traffic congestion. A cost effective solution to repair failed cross pipes is to slip line the pipe. MaineDOT

      policy allows the use of solid wall and profile wall high density polyethylene pipe for slip line

      applications. Snaptite is one of the solid wall liners often used.


      Pipe is a smooth bore pipe that comes in a variety of lengths and diameters. The pipe is

      lightweight and has a unique joint that snaps together to form a tight bond and water tight seal.

      The Department has been slip lining corroded corrugated metal cross pipes for a number of years

      using SnapTite

      Pipes. This repair can only be employed when the existing pipe is large enough for the

      slip line pipe, the replacement pipe is large enough to handle the water flow, the ends of the metal pipe

      have not been lifted by frost, and the position of the existing pipe is sufficient for drainage.

      A cross pipe on the Smyrna Road in Oakfield and another on the Pond Road in Benedicta were not

      suitable for slip lining and had to be replaced. It was decided to use SnapTite

      Slip Line Pipe as a direct

      burial cross pipe at these locations because of the cost as compared to the conventional materials used.

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