GPRS Provides Accurate Utility Mapping for Prison Trenching Project

• A previous contractor, operating off outdated as-built documentation, had struck and damaged the 15,000-volt conduit
• The existing plans showed the conduit being located 20 feet away from where it really was
• The new contractor needed an accurate map of buried utilities in the proposed excavation area

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• A GPRS Project Manager utilized an electromagnetic (EM) locator and ground penetrating radar (GPR) to obtain the accurate location for all buried utilities in the project area
• Utility locations and depth estimations were marked on the ground to clearly indicate where it was safe to trench
• The geolocated and layered utility locating data was uploaded into SiteMap^®

• The contractor was able to safely trench without causing further damage to the penitentiary’s buried infrastructure
• Prison personnel and any future contractors will be able to reference the accurate, complete infrastructure data for future O&M

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