Asphalt Paving Contractor

Thickness comes from traffic volume and axle loads, subgrade support, drainage, frost, granular design, asphalt mix, service life, and the engineer or owner standard. Harrowgate builds the issued pavement section and verifies each layer. A car parking area, fire route, loading dock approach, and truck yard do not receive one generic section.

Failures around structures follow weak backfill, poor compaction, incorrect frame elevation, water entry, narrow hand patches, or differential movement. Harrowgate reconstructs the support zone, sets frames to the paving plan, uses clean cut limits, compacts with suitable equipment, and checks final drainage so the structure and mat operate together.

Harrowgate establishes a rolling plan based on mix, lift, weather, paver speed, temperature, and equipment. Breakdown, intermediate, and finish rolling remain close enough to the paver to work within the compaction window. Density testing or cores follow the contract, and results are tied to exact production areas and joints.

Yes. Harrowgate coordinates traffic, deliveries, fire routes, pedestrians, loading, temporary surfaces, structure access, paving limits, cooling, markings, and reopening by phase. Each stage has clean joints and drainage. The facility receives advance route changes, and fresh pavement stays protected until the stated reopening condition is met.

Ponding results from missed base elevations, insufficient crossfall, low points at joints, incorrect structure rims, settlement, screed variation, or tie-ins that block flow. Harrowgate surveys the granular base and key surface points, coordinates structures before paving, maintains paver control, and checks drainage routes before final acceptance.

The contract identifies the governing documents. Common references are OPSS 310 for hot-mix asphalt construction, OPSS 1150 for hot-mix materials, related OPSD details, municipal amendments, and project-specific mix and testing requirements. Harrowgate confirms the applicable editions and owner requirements before mix submission, production, and testing.

Provide pavement areas, design sections, geotechnical information, traffic loading, survey and drainage plans, curbs and structures, milling or removal limits, mix and testing requirements, phasing, access, markings, and restoration. Harrowgate reviews base correction and drainage because the visible asphalt quantity alone does not define a durable scope.