# HAR 6-77-200 Protecting cast-iron pipelines

- **operation:** document
- **citation:** HAR 6-77-200
- **title:** HAR 6-77-200 Protecting cast-iron pipelines
- **source type:** regulation
- **agency:** Hawaii Public Utilities Commission
- **status:** current
- **official:** true
- **published on:** 1994-04-15
- **effective on:** 1994-09-03
- **summary:** support for a segment of a buried cast-iron pipeline is disturbed: (1) That segment of the pipeline must be protected, as necessary, against damage during the disturbance by: (A) Vibrations from heavy construction equipment, trains, trucks, buses, or blasting; (B) Impact forces by vehicles; (C) Eart
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- **app url:** https://regulus.evalyn.ai/document/hi-har-har-6-77-200
- **source url:** https://puc.hawaii.gov/wp-content/uploads/2026/04/HAR-6-77-Transp-of-Gas-03-31-2026.pdf
**body:**

support for a segment of a buried cast-iron pipeline is disturbed: (1) That segment of the pipeline must be protected, as necessary, against damage during the disturbance by: (A) Vibrations from heavy construction equipment, trains, trucks, buses, or blasting; (B) Impact forces by vehicles; (C) Earth movement; (D) Apparent future excavations near the pipeline; or (E) Other foreseeable outside forces which may subject that segment of the pipeline to bending stress; (2) As soon as feasible, appropriate steps must be taken to provide permanent protection for the disturbed segment from damage that might result from external loads, including compliance with applicable requirements of sections 6-77-100(a), 6-77-101, and 6-77-111(b)-(d). [Eff ] (Auth: HRS '269-6) (Imp: 49 C.F.R. '192.755, October 1, 1990)
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