Cell Tower Site Design
Erie County Department of Public Safety, Erie County, PA |
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Erie County was upgrading its existing radio system to better serve residents, businesses, and tourists of the county. To achieve the overall plan, Erie County contracted the construction of eight raw lands to finish tower sites across the county to provide RF coverage for first responders. This project consisted of eight cell towers located at Union City, Corry City, Waterford Township, Girard Township, Fairview Township, Greenfield Township, Harborcreek Township, and Springfield Township.
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Stahl Sheaffer provided site engineering and geotechnical services for the project. The site survey included research to identify property deeds and easements to assist in locating proposed towers. Stahl Sheaffer also provided construction stakeout.
Geotechnical services included subsurface investigation, laboratory testing, geotechnical analysis, and report. The subsurface investigation included drilling inspection, visual inspection of the boring samples, determination of Rock Quality Designation (RQD) and Percent Recovery of rock core samples, photographic documentation of project site and findings, ground water table measurement, digitize the boring log. All laboratory tests were performed at Stahl Sheaffer’s AASHTO resources-accredited geotechnical lab. The tests included natural water content, Atterberg Limit, sieve analysis, soil classification, soil density, soil resistivity, unconfined compressive strength and direct shear of soil, and compressive strength of rock core. Based on the results of the subsurface investigation and laboratory testing, Stahl Sheaffer estimated the parameters for the design of drilled shafts and a shallow pad foundation. The parameters estimated included soil strength, Skin Frictional Resistance of soil and rock, Ultimate Bearing Pressure, Strain E50 and Lateral Subgrade Modulus. All findings were described in the geotechnical report.
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