6 December 2006
Including change 1, 7 December 2006
11-2.8.4 Excavated material removed from trenches in streets must be kept on the
traffic side of trenches until used for fill or removed. This will help vehicular traffic avoid
11-2.8.5 When workers are required to be in trenches 4 ft (1.2 m) deep or more, at
least two separate and adequate means of exit, such as ladders or steps, must be
provided and located to require no more than 25 ft (7.6 m) of lateral travel.
11-2.8.6 Sides of trenches 5 ft (1.5 m) or more in depth must be shored, sloped, or
otherwise supported to prevent collapse.
Carefully refill excavations and see that all refilling is well tamped.
Do not handle pull-wires or pulling-lines within reaching distance of blocks,
sheaves, winch drums, and take-up reels.
Do not remain in a manhole during pulling operations.
Do not use wire rope to pull cable in a duct already occupied by conductors.
Use a nonmetallic duct fishing wire or device when fishing ducts containing
Always fish ducts in the direction that presents the least hazard. Consider
stationing a worker at each end when fishing ducts.
BURIED ELECTRICAL CABLES.
Use area utility maps to locate existing buried cables and nearby utilities as
accurately as possible. Locate/scope for buried cables along any intended digging
areas. Obtain digging permits, as required.
Use extreme care when excavating near or exposing direct-burial electric
underground cables. If the depth of all direct-burial cables is definitely known, power
digging equipment can be used for excavating all but the last 12 in (305 mm) of cover
over the cables. The remaining cover must be removed by use of hand-digging tools
with FRP handles. Where the depth of direct-burial cables is not established, power-
digging equipment must not be used, except to break and remove the surface
Do not use probe rods or bars to locate any underground direct-burial cables.
Take extreme care to avoid damaging the cable insulation when uncovering