Two-Level Below Grade Garage

Structural Concrete Repair

Parking Garage

Two-Level Below Grade Garage Structural Repairs and Waterproofing

Location

Central Business District

Summary

Comprehensive structural concrete repairs in a two-level below-grade parking garage in downtown Denver, addressing spalled and deteriorated overhead concrete that posed safety and structural risks. Through phased construction, corrosion treatment, and the use of high-performance repair mortars, the team restored safety, durability, and functionality while keeping the garage operational.

Challenge

The parking garage at a two-level below-grade facility in downtown Denver, had deteriorated significantly, with multiple areas of spalled and loose overhead concrete creating falling hazards and undermining structural strength. The structural engineer’s assessment called for immediate concrete restoration to prevent further damage and ensure tenant safety. Because the garage needed to remain in use during construction, DCPS was tasked with delivering a structural concrete repair solution in Denver that combined safety, durability, and minimal disruption to building operations.

Solution

After a detailed concrete sounding inspection, DCPS identified approximately 1,650 square feet of overhead concrete requiring urgent repair. Working closely with the client and the structural engineer, we designed a phased repair plan to keep portions of the garage open while work was completed. To ensure long-lasting results, DCPS used structural repair mortars, chosen for its superior bonding strength, corrosion protection, and ability to perform in demanding overhead applications. By integrating these high-performance repair materials into the project, DCPS delivered a durable, cost-effective solution that restored both safety and functionality.

The concrete repair process began with a carefully staged phasing plan, allowing tenants to safely access parking throughout construction. Each work zone was secured with safety barriers and signage. Crews removed all loose and damaged concrete, followed by a thorough inspection of reinforcing steel. Where corrosion was present, steel was cleaned, primed, and supplemented with additional reinforcement as needed.

Once reinforcement preparation was complete, DCPS applied materials to rebuild overhead concrete surfaces. These structural mortars provided excellent adhesion and durability, ensuring the repairs would withstand long-term environmental and load demands. The project was completed per engineering specifications, restoring critical overhead sections and safeguarding the garage from further deterioration.

Through strategic phasing, technical precision, and the use of Sika repair products, DCPS successfully executed a parking garage restoration project in downtown Denver that eliminated immediate safety hazards while extending the service life of the structure.