# HAR 6-77-32 Design factor (F) for steel pipe

- **operation:** document
- **citation:** HAR 6-77-32
- **title:** HAR 6-77-32 Design factor (F) for steel pipe
- **source type:** regulation
- **agency:** Hawaii Public Utilities Commission
- **status:** current
- **official:** true
- **published on:** 1994-04-15
- **effective on:** 1994-09-03
- **summary:** 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........
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**body:**

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