Oregon District Parking Garage
Dayton, OH
Owner/ Client:
City of Dayton
O&S Services Used:
Condition Assessment
Structural Investigations
Structural Engineering
Design Services
Bidding Services
Construction Phase Services
The Oregon District Parking Garage (Formerly Dayton Transportation Center Garage) is a large, six-story post-tensioned reinforced, cast-inplace concrete parking garage located in Downtown Dayton Ohio. It is a public garage that serves the surrounding area including the Oregon entertainment district, the Dayton Convention Center and several nearby business. O&S responded to a Request for Proposal by the city for a complete condition assessment of the garage, development of a recommended restoration program, as well as engineering design and construction management/contract administration for the garage. O&S submitted a comprehensive proposal to the city and was awarded the engineering contract.
In early 2018, O&S performed our comprehensive in-field condition assessment of the parking garage, inclusive of chain drag and hammer-tap sound testing. Upon completion of our visual inspection, it was determined that the helical speed ramps were considerably deteriorated, and we performed a follow-up investigation that included exploratory core extractions of the ramp slabs. Based on our findings, we developed our recommended restoration program for the 1,500 space parking garage, which included comprehensive structural restoration of the deteriorated helical speed ramps, concrete patch repairs, EIFS repairs, expansion joint seal replacement, new traffic bearing waterproofing membranes and water repellent sealers, a new upgraded LED lighting package, and a new security surveillance system. A construction cost line item estimate and restoration budget was developed with a total estimated value of $8 million. Due to budgeting, the city requested the project be phased.
The first phase of the project was implemented in 2019 for a total cost of roughly $3.5 million. O&S provided engineered repair documents, bidding services, construction management, and contract administration services throughout the duration of the project. Phase 1 included complete resurfacing of the deteriorated helical ramp slab with a new 3” bonded topping, complete waterproofing of the ramp and roof level slabs, new LED lighting package, partial depth, vertical and overhead concrete repairs throughout the supported levels of the garage, and replacement of selected expansion joint seals.
This year, the city has retained O&S to provide design services for Phase 2 of the project. Phase 2 will be a $1.5 million project that will complete all recommended structural repairs, replace all expansion joint seals, and provide a new half million-dollar security camera package. Construction is expected to commence late summer 2020.