WORK PLANS - Laserfiche WebLink

Home Browse Search

A=COM Americas Underground Utilities S3AM-331-PR1 1.0 Purpose and Scope 1.1 Provides procedures designed to help prevent injuries to personnel working on the location and pedestrians, property damage, and adverse environmental impact as a result of potential hazards associated with encountering underground utilities, subsurface installations, and potential overhead hazards. 1.2 Provides the minimum requirements to be followed for underground work(e.g., excavations, drilling, boring, and probing work)to ensure that underground installations, and subsurface structures, are identified properly before work commences. 1.3 This procedure applies to all Americas-based employees and operations and any other entity and its personnel contractually required to comply with this document's content. 1.4 The Manager is responsible for meeting all the requirements in this procedure. 1.5 AECOM's clients may have specific procedures which shall be followed to identify and map utility and subsurface structures on their properties or facilities. Provided the client's procedures meet or exceed those of AECOM, approval shall be obtained from the Manager and the SH&E Manager to follow the client's procedures. 2.0 Terms and Definitions 2.1 Underground Utilities—All utility systems located beneath grade level, including, but not limited to, gas, electrical, water, compressed air, sewage, signaling and communications, etc. 2.2 Clearance—includes the following: • The positive locating of underground utilities or subsurface installations in or near the work area. • A signed statement by an appropriate representative attesting to the location of underground utilities and/or the positive de-energizing (including lockout)and testing of electrical utilities. 2.3 Ground Disturbance(GD)—Any indentation, interruption, intrusion, excavation, construction, or other activity in the earth's surface as a result of work that results in the penetration of the ground. 2.4 Hand Clearance/Tolerance Zone—The area on either side of the locate marks of a utility that shall be maintained in order to expose the utility through the use of non-destructive ground disturbance techniques acceptable to the owner of the buried utility and applicable jurisdictional requirements. Visual exposure is required before mechanical excavation equipment may be used. 2.5 Intrusive Activities—Examples: Excavation of soil borings, installations of monitoring wells, installation of soil gas sampling probes, excavation of test pits/trenches or other man-made cuts, cavity,trench or depression in an earth surface formed by earth removal. 2.6 Non-Destructive Ground Disturbance Technique—A safe and acceptable excavation method that is used to visually expose an underground utility without causing damage. Non-destructive ground disturbance techniques may include, but are not limited to: • Hand digging. • Use of non-conductive tools. • Hydro-vacuum. 2.7 Subsurface Installation—Examples: Subterranean tunnels, underground parking garages and other structures beneath the surface. 2.8 Utility Strikes—Unplanned contact with utilities resulting in damage to the utility or its protective coating. Underground Utilities(S3AM-331-PR1) Revision 2 September 30,2020 PRINTED COPIES ARE UNCONTROLLED. CONTROLLED COPY IS AVAILABLE ON COMPANY INTRANET. Page 1 of 8