Oregon OSHA Standards (Partial
list taken from the Specific Excavation Requirements)
The estimated location of utility installations, such as sewer,
telephone, fuel, electric, water lines, or any other underground installations
that reasonably may be expected to be encountered during excavation
work, shall be determined prior to opening an excavation.
437-003-0096 Underground Installations. In addition to and not in
lieu of any rules relating to “underground installations” adopted in
Oregon Administrative Rules, Chapter 437, the following Oregon Revised
Statutes and Oregon Administrative Rules administered by the Oregon
Public Utility Commission (PUC) shall apply:
757.541 through 757.571; and
2. OAR 860-24-006 and OAR 860-24-007.
When excavation operations approach the estimated location of underground
installations, the exact location of the installations shall be
determined by safe and acceptable means.
While the excavation is open, underground installations shall be
protected, supported or removed to safeguard employees.