MIL-HDBK-1025/10
d. Other lines, such as communication, water, or storm drainage, will be repaired as soon
as possible by the appropriate maintenance department.
Excavation Practices and Procedures for Damage Prevention
8.4
WARNING
The major reason for accidents and damages caused by excavation work
results from a lack of knowledge on the location of existing underground
utilities. Preplanning will locate any such obstructions and ensure that
correct excavation and backfilling procedures are followed in existing
underground utility locations.
8.4.1 Preplanning of the Excavation Project. The most important step is to identify
underground utilities.
8.4.2 All Projects Preplanning. Pre-mark proposed excavation area with white paint
prior to notifying the utilities locating service.
a. Obtain the work order or excavation package and document the location request
number. Acquire and retain the sketch of the utility location if supplied by the facility owner.
b. Make sure request numbers are valid and that customer information is correct.
c. If there is a "high priority" facility line in the excavation area, make arrangements for
the utility locator to be on the job site during the excavation (that is, high pressure gas, fiber optic,
medium voltage electric, major pipe and water lines). If the utility locator or facility owner
refuses to be present, then document this response on the work order or excavation package.
d. Ensure that all known underground utilities owners have been contacted.
8.4.3 Large Project Preplanning. Conduct a pre-construction meeting with facility
owners to review excavation area.
a. Obtain as-builts/maps from facility owners.
b. Have sub-surface facility engineering performed if feasible.
c. Photograph the area to be excavated for future reference.
8.4.4 On the Job Site Procedures. Once on the job site, begin job preparation by
reviewing the list of underground utility/facility owners that are in your excavation area and make
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