Overview

Snap-Tite pipe features the patented Snap-Tite joining system which will ensure an easy-to-install, reliable, water-tight seal. Snap-Tite is constructed of solid-wall polyethylene pipe and provides flexibility for lining obstructed culverts with the possibility of offset joints or slight bends.

Cost Effectiveness

Several studies have revealed that the largest expense on culvert projects is not the pipe itself, but the installation, inspection, maintenance, road repair, and liability. Because the Snap-Tite Culvert Lining System is so easy to install, it reduces your overall culvert renewal costs. Snap-Tite saves on labor costs by eliminating the time-consuming process of cutting and repairing roads. There’s no need for specialized equipment, so you save money on costly rentals and labor. And just think, during down times from mowing or snow removal, your existing highway crews can be productive by lining deteriorating culverts. but don’t take our word for it, examine the comprehensive cost justifications performed by these states.

Flow Characteristics

Snap-Tite has an extremely smooth inside surface and maintains its excellent flow properties throughout its service life due to its excellent chemical and abrasion resistance. Because of its smooth walls and non-wetting characteristics, a higher flow capacity and a reduced friction loss is possible. Snap-Tite typically has a Manning roughness coefficient of 0.009 and a Hazen Williams flow factor of 155. The charts on the following pages demonstrate how the Snap-Tite system gives you a more durable pipe with a smaller ID that carries as much, if not more fluid than the original pipe!

  Pipe SDR lbs/ft I.D. Minimum Wall Thickness
10″ (10.750 OD) 32.5 4.75 10.088 0.331
12″ (12.750 OD) 32.5 6.67 11.966 0.392
14 OD 32.5 8.05 13.138 0.431
16 OD 32.5 10.5 15.016 0.492
18 OD 32.5 13.3 16.892 0.554
20 OD 32.5 16.41 18.77 0.615
22 OD 32.5 19.86 20.646 0.677
24 OD 32.5 23.62 22.524 0.738
26 OD 32.5 27.94 24.304 0.8
28 OD 32.5 32.19 26.276 0.862
30 OD 32.5 37.196 28.043 0.923
32 OD 32.5 42.04 30.03 0.985
36 OD 32.5 53.2 33.784 1.108
42 OD 32.5 72.37 39.416 1.292
48 OD 32.5 91.62 45.05 1.477
54 OD 32.5 119.7 50.676 1.662
63.2 OD 32.5 163.46 59.02 1.945
CMP Size (inches) Equivalent Snap-Tite Round OD Outside Liner Dim(in) Inside Liner Dim(in) Flow Q(cfs) Snap-Tite % of Flow
Size (in) Q(cfs)   minor major minor major    
20in. 28in. 3.7 20″ 16.5 23 15.1 21.7 4.7 128%
24in. 35in. 6.3 26″ 20.5 30.5 18.8 28.8 9.2 145%
29in. 42in. 10.3 30″ 22.5 36 20.3 34 12.6 122%
33in. 49in. 15.1 36″ 30 41.1 27.7 38.7 22.9 152%
38in. 57in. 22.2 42″ 34 48.9 31.3 45.9 33.7 152%
43in. 64in. 30.6 48″ 39 55.6 35.9 52.3 48.3 158%
47in. 71in. 39.5 48″ 39 55.6 35.9 52.3 48.30 122%
52in. 77in. 50.4 54″ 47 60.2 43.5 56.6 70 139%
57in. 83in. 63.1 54″ 47 60.2 43.5 56.6 70 111%
63in. 87in. 77.1 63″ 58 67.6 53.9 63.5 109.1 141%
* flow is based on slope of .1% HDPE n=.00914 / CMP n=.024
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