Construction Testing, Site Inspection, Laboratory Testing Task Order Contract Columbus, Ohio

Project Owner/Client: Central Ohio Transit Authority (COTA)

National Engineering & Architectural Services Inc. (NEAS Inc.) was retained by the Central Ohio Transit Authority to conduct construction inspection and testing services for the renovation and addition of the Fields Avenue Facility in Columbus, Ohio. The project included the 273,000-square-foot building, driveways and parking areas into “like new” condition. The renovated facility provided space for storage and maintenance of 180 fixed-route coaches. The project replaced vehicle maintenance hydraulic lifts and other equipment, deteriorated concrete, electrical and lighting, heating, ventilation, air conditioning and plumbing, in addition to other general construction work. Work also included construction of a 1,300-square-foot wellness center addition for COTA employees. NEAS Inc. provided on-site inspection and quality control testing for the project including footing and reinforcing steel inspection, subgrade inspection and proofroll as well as the testing of approximately 3500 yds3 of cast in place concrete.

COTA also constructed a new Paratransit facility. The 94,000-square-foot building includes the construction of approximately 10 acres of new parking area. The new facility houses up to 104 Paratransit vehicles, in accordance with COTA’s goal to double the size of the Mainstream fleet by 2030. The new facility also houses Administrative offices of the Mainstream program. NEAS Inc. was retained for Phases I and II of the project to provide inspection and testing of the site preparation, earthwork and building pad construction. Our activities included identification of unsuitable subgrade materials and the remediation thereof. Field density verification of subgrades and engineered fills, using nuclear densometer, observation and documentation of demolition of structures, proofrolling and testing of cast in place concrete were performed.

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