Parking Structure Repair

De-icing chlorides and moisture enter through cracks, worn membranes, failed joints, and drains. Chlorides initiate reinforcing corrosion, and expanding rust fractures the surrounding concrete. Freeze-thaw, impact, and poor drainage add damage. Harrowgate repairs the concrete and reinforcement, then restores the water and chloride protection that addresses the cause.

Engineers use visual mapping, hammer sounding, chain drag, cover survey, cores, chloride testing, corrosion-potential data, and other methods suited to the structure. Harrowgate transfers repair limits, exposes suspect edges during removal, and expands work where sounding or open-condition review shows deterioration continues beyond the initial map.

Yes. Harrowgate divides work into engineered phases with barriers, alternate routes, protected pedestrian paths, overhead containment, ventilation controls, and clear height and weight restrictions. Each phase respects shoring and maximum removal limits and reopens only after concrete, membrane, joints, drainage, and markings meet release criteria.

A traffic-bearing membrane limits water and dissolved chlorides from entering the deck while resisting tire wear and accommodating designed crack movement. It requires sound dry-enough concrete, prepared profile, compatible crack and joint treatment, correct thickness, and cure. Harrowgate verifies these conditions and details continuity at drains, curbs, columns, and ramps.

Full-depth repair is used where deterioration, cracking, impact, corrosion, or prior work affects the complete slab thickness or both reinforcement layers. The engineer defines limits, shoring, bar work, forming, and load restrictions. Harrowgate protects the level below, forms the opening, restores reinforcement, and places concrete monolithically through the section.

Harrowgate removes failed seals and adjacent unsound concrete, verifies the joint opening and movement range, rebuilds nosings or blockouts, prepares clean parallel faces, and installs the specified gland, seal, or assembly. Drainage and traffic membrane tie-ins are restored so water does not bypass the new joint at its ends.

Useful records include repair maps by type and depth, open-condition photos, reinforcing replacement, concrete and mortar batches, tests, curing, crack injection, drain and joint work, membrane preparation and adhesion tests, coating thickness, deficiencies, phase opening dates, and approved field changes. Harrowgate organizes these records by level, grid, and phase.