Maryland Department of Transportation — State Highway Administration (MDOT SHA) · Standard Specifications for Construction and Materials
Section 809 — Trenching and Backfilling
Maryland Standard Specifications for Construction and Materials, Section 809. Full text, cross-references and related pay items on BuildSpec.
809 — TRENCHING AND BACKFILLING 2026 STANDARD SPECIFICATIONS FOR CONSTRUCTION AND MATERIALS CATEGORY 800 TRAFFIC SECTION 809 — TRENCHING AND BACKFILLING 809.01 DESCRIPTION Excavate trenches for the installation of underground conduit, wire, or duct cable for traffic control devices. 809.02 MATERIALS Backfill 950.05 Conduit Detection Tape 950.11 809.03 CONSTRUCTION Excavate trenches as specified. In areas where conduit or cable is trenched, place a detector tape 6 in. below the finished grade. The tape shall be red and imprinted with a continuous warning message that reads "CAUTION: ELECTRICAL…
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