Curb Repair Cambridge

A localized repair can work where remaining concrete is sound, reinforcing is suitable, geometry is intact, and deterioration is shallow. Replacement is more appropriate for settlement, rotation, deep delamination, broken sections, widespread salt damage, or failed base. Harrowgate removes to sound limits and chooses the method from the exposed condition.

Ponding occurs when gutter grade is not surveyed, tie-ins are too abrupt, the catch basin is high, or asphalt settles at the curb. Harrowgate establishes a wider drainage profile, checks form elevations, and restores pavement with full compaction. The repair is reviewed as part of the flow line rather than an isolated segment.

The project specification selects a CSA A23.1 mix suited to freeze and thaw and de-icing exposure, including strength, air, water-to-cementing-materials ratio, aggregate, and curing. Harrowgate checks delivery tickets and field tests, avoids adding finishing water, and protects fresh curb from cold and premature salt.

Existing concrete is sawcut to a sound joint, retained ends are protected, and dowels are installed where detailed with correct drilling, cleaning, embedment, and alignment. Forms carry the profile smoothly between sections. Harrowgate avoids narrow wedges and uncontrolled break lines that create weak corners or drainage sags.

Yes. If a catch-basin frame is high, low, damaged, or poorly aligned, adjusting it during curb repair can restore the complete gutter profile. Harrowgate coordinates excavation, structure adjustment, curb forms, concrete, and asphalt so water reaches the inlet without an abrupt dip or lip.

The closure remains until concrete reaches the required strength and edge durability for the expected traffic. Weather, curing, mix, plow or truck exposure, and project requirements affect timing. Harrowgate protects curb from tires, delivery vehicles, paving equipment, and de-icing chemicals during the vulnerable early period.

Yes, under an approved design coordinating running slope, cross slope, clear width, tactile walking surface indicators, gutter transition, drainage, and adjoining sidewalk. Harrowgate surveys the full route and rebuilds enough curb and walk to avoid short steep transitions or ponding at the bottom.

Settlement can return when weak base, trench backfill, washout, roots, groundwater, or adjacent pavement movement remains below the new concrete. Full-depth support and drainage are corrected where the observed cause requires them.

Survey establishes elevations at sound ends, inlets, low points, pavement, and transitions. Forms and grade checks preserve continuous drainage rather than copying a settled or ponding section.