Common use of Minimum Depths Clause in Contracts

Minimum Depths. Minimum cover required in the placement of conduit shall be 42 inches, except in the following instances: (a) The minimum cover in borrow ditches adjacent to roads, highways, railroads, and interstate highways is ##MATERIAL OMITTED AND SEPARATELY FILED UNDER AN APPLICATION FOR CONFIDENTIAL TREATMENT## inches below the cleanout line or existing grade, whichever is greater. (b) The minimum cover across streams, river washes and other waterways is 60 inches below the cleanout line or existing grade, whichever is greater. Steel conduit will be placed at all such crossings unless the crossing is directional bored. (c) At locations where conduit crosses other subsurface utilities or other structures, the conduit shall be installed to provide a minimum of ##MATERIAL OMITTED AND SEPARATELY FILED UNDER AN APPLICATION FOR CONFIDENTIAL TREATMENT## inches of vertical clearance and applicable minimum depth can be maintained; otherwise the conduit will be installed under the existing utility or other structure. If, however, ##MATERIAL OMITTED AND SEPARATELY FILED UNDER AN APPLICATION FOR CONFIDENTIAL TREATMENT## inches cannot be obtained, the cable shall be encased in steel pipe rather than conduit. No fiber optic cable shall be buried without being surrounded by conduit or steel pipe. (d) In rock, the conduit shall be placed to provide a minimum of ##MATERIAL OMITTED AND SEPARATELY FILED UNDER AN APPLICATION FOR CONFIDENTIAL TREATMENT## inches below the surface of the solid rock, or provide a minimum of ##MATERIAL OMITTED AND SEPARATELY FILED UNDER AN APPLICATION FOR CONFIDENTIAL TREATMENT## inches of total cover, whichever requires the least rock excavation. PVC or HDPE conduit will be backfilled with 6 inches of select materials (padding) in rock areas. (e) In the case of the use/conversion of existing steel pipelines or salvaged conduit systems, the existing depth shall be considered adequate.