1. HALF ROUND PIPE (CSP, CASP, CAP)
For downslope drains, ditch liners, and areaways. Standard 10 foot lengths are furnished match punched with bolts. Also available in two foot increments in .064, .079 and .109 inch thick steel. Aluminum thicknesses are .060, .095 and .105 inch

2. PART CIRCLE CORRUGATED SHEET
Same material as above. Available in various degrees of circle in various radii.

3. FLUME
Flume has corrugations parallel to the direction of flow and is commonly used to prevent erosion on downslope drains. Standard 10-foot lengths are fabricated from .064 inch thick galvanized steel sheets, furnished match punched with bolts. Sizes are 12 inches x 7 inches, 24 inches x 12 inches, and two piece “Super Flume”, adjustable from 32 inches to 64 inches wide x 12 inches high. Anchor stakes, fittings and several types of entrance adapters are available.

4. FLUME, STARTER SECTION
Adapts round pipe to rectangular box flume. 12 inch starter adapts 12 inch flume to 12 inch through 21 inch pipe. 24 inch starter adapts 24 inch flume to 24 inch through 36 inch pipe. Material is .064 inch thick galvanized steel. (See more flume adaptors and details on pages 21 and 22.)

5. BONNET STYLE END CAP OR COVER
Bonnet style end caps may be used to permanently or temporality cover buried pipe ends or vertical risers. Materials and fabrication details vary with need.

6. ENTRANCE TAPER
For pipe down drains through roadside berms. Available for pipe sizes 8 inch through 24 inch in .079 inch thick galvanized steel.

7. SADDLE TEE
Saddle tees are custom fabricated for connection to existing pipe, or field located connections in new construction

8. DROP INLETS, MANHOLES & RISERS
These structures are custom fabricated to meet specific project requirements. Manholes, risers, inlets, and outlets are made from CSP, CASP, or CAP in any available thickness. Corrugations may be 2-2/3 inch x ˝ inch, 3 inch x 1 inch, or 5 inch x 1 inch. Available with solid cover or open grating, with or without welded bottom. Drop inlets are commonly used to collect surface water and/or for clean outs. Manholes and risers are used for access to underground systems or to connect multiple lines

9. END SECTION WITH BAR GATE
Permanent or removable grates can be fabricated to prevent unwanted debris or animals from entering the pipe. Grates can be fitted to round pipe, pipe-arches, beveled ends or end sections and may be black steel, painted, or hot dip galvanized.

10. ANTI-SEEP COLLAR
Discourages burrowing rodents and helps prevent seepage along pipe surface. Available in .064 inch through .138 inch steel and .060 inch through .135 inch aluminum thickness. Collars can be shop welded or field bolted.

11. ANCHOR ASSEMBLIES
Anchor assemblies consist of a band or strap around pipe, anchor stakes, attachment plates, and necessary hardware. One of several types is shown.

12. DEBRIS RACKS
Debris racks are used to prevent clogging of pipe inlets by water borne debris. Some common types are shown but many other custom designs can also be fabricated.