Haw. Code R. § 6-77-32 - Design factor (F) for steel pipe

(a) Except as otherwise provided in subsections (b), (c), and (d), the design factor to be used in the design formula in section 6-77-29 is determined in accordance with the following table:

Class location	| Design factor (F)
1................................	| 0.72
2................................	| 0.60
3................................	| 0.50
4................................	| 0.40

(b) A design factor of 0.60 or less must be used in the design formula in section 6-77-29 for steel pipe in Class 1 locations that:

(1) Crosses the right-of-way of an unimproved public road, without a casing;

(2) Crosses without a casing, or makes a parallel encroachment on the right-of-way of either a hard surfaced road, a highway, a public street, or a railroad;

(3) Is supported by a vehicular, pedestrian, railroad, or pipeline bridge; or

(4) Is used in a fabricated assembly, (including separators, mainline valve assemblies, cross connections, and river crossing headers) or is used within five pipe diameters in any direction from the last fitting of a fabricated assembly, other than a transition piece or an elbow used in place of a pipe bend which is not associated with a fabricated assembly.

(c) For Class 2 locations, a design factor of 0.50, or less, must be used in the design formula in section 6-77-29 for uncaused steel pipe that crosses the right of way of a hard surfaced road, a highway, a public street, or a railroad.

(d) For Class 1 and Class 2 locations, a design factor of 0.50, or less, must be used in the design formula in section 6-77-29 for:

(1) Steel pipe in a compressor station, regulating station, or measuring station; and

(2) Steel pipe, including a pipe riser, on a platform located offshore or in inland navigable waters.

Notes

Haw. Code R. § 6-77-32

[Eff ] (Auth: HRS § 269-6) (Imp: 49 C.F.R. §192.111, OCT 1, 1990)