Prior to digging or excavating, it is required by law to call the local 811 State One-Call service to have buried utilities marked. 811 State One-Call locators are responsible for only locating specific types of public utilities. Furthermore, the 811 State One-Call locators will only locate utilities from the utility main to the service meter. Our team of experts at Advanced Infrastructure Mapping, LLC, can mark all privately owned and maintained utilities. Any utility beyond the service meter is usually considered to be a private utility, which will require a second call to a firm that offers private utility location services. Some examples of private utilities not located by the 811 State One-Call include sewer systems, sprinkler systems, fire protection mains, parking lot lights etc.
Ground-penetrating radar (GPR) is a geophysical method that uses radar pulses to image the subsurface. This nondestructive method uses electromagnetic radiation in the microwave band (UHF/VHF frequencies) of the radio spectrum, and detects the reflected signals from subsurface structures. GPR can have applications in a variety of media, including rock, soil, ice, fresh water, pavements and structures. In the right conditions, practitioners can use GPR to detect subsurface objects, changes in material properties, and voids and cracks. Advanced Infrastructure Mapping, LLC use GPR primarily for locating non-metallic utilities, underground storage tanks (UST’s) and grave sites.
Often it is necessary to know the exact depth, size, or material of the underground utility. This can be accomplished using a non-destructive method of digging known as vacuum excavation to physically expose a utility at a desired location. This method uses either high pressure water or air to loosen and disturb the soil. A high suction vacuum then removes the soil.
Traditional excavation equipment such as a backhoes may damage the utility in the excavation process or require a larger excavated area. Precise vertical and horizontal information can then be obtained in addition to material type without damaging the utility.
Closed circuit television inspection (CCTV) pipe inspection is one of the most effective methods to determine pipe defects, the likelihood of failure and rehabilitation requirements. CCTV is the industry’s tried and true method of determining the exact location and severity of all features and defects associated with Client’s pipe system. We use remotely controlled cameras to capture high-quality videos and pictures of internal pipe conditions.
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