Turning Parking Garage Conditions Into a Long-Term Repair Strategy

Technical Assurance evaluated the four-level Parkwood Five Parking Garage in Indianapolis, Indiana, to document existing conditions, identify repair and maintenance needs, and establish a strategy for extending the useful service life of the structure. The precast concrete garage consists of prestressed double-tee decks with cast-in-place concrete topping slabs.

The evaluation combined visual observations with chain-drag testing to identify areas of deteriorated and delaminating concrete. Overall, the garage was found to be in fair condition, with repairs and extensive maintenance needed to support long-term performance.

Identifying Conditions and Prioritizing Repairs

Technical Assurance documented cracking, spalling, deteriorated concrete, aging sealant joints, worn traffic membranes, and expansion joint conditions throughout the garage. Several areas of deterioration were associated with water infiltration and corrosion of reinforcing steel, making control of moisture intrusion an important component of the recommended repair strategy.

Recommendations included concrete crack and patch repairs, sealant replacement, traffic membrane repairs, expansion joint replacement, and application of penetrating water repellent to help protect concrete surfaces from moisture and deicing salts.

Planning for Long-Term Garage Performance

Rather than addressing individual deficiencies only as they occurred, Technical Assurance recommended a comprehensive maintenance and restoration program. Repair quantities and budget estimates were developed to help prioritize work and phase investments over time.

The resulting plan provided a structured approach for addressing immediate repair needs while planning future maintenance. Technical Assurance also recommended reevaluating the garage at least every five years so the maintenance plan could be adjusted based on changing conditions and performance.