Asphalt Paving in Vista, CA

Vista soil: decomposed granite

Vista has a soil series named after it. The Vista series is a well-drained coarse sandy loam formed from weathered granitic rock, typically 20 to 40 inches deep over weathered bedrock.

Sandy decomposed granite drains well, which is good for pavement. The trade-off is erosion: water running off or alongside a driveway can wash out the edges and undermine the base. Good edge support and a drainage plan matter more here than on flat ground. Soils vary, so some Vista properties also have clay-rich or fill soils that need more base.

Slopes and long driveways

Many east Vista properties have long or steep driveways. Steep asphalt needs good compaction, edge support and somewhere for water to go other than straight down the pavement. Commercial and industrial properties in the Vista Business Park area bring heavier truck traffic, which calls for a thicker pavement section.

Permits in Vista

Driveway approaches, curbs, gutters and sidewalks are in the public right-of-way and need a City of Vista encroachment permit. The city's permit package requires a state contractor's license, a City of Vista business license and insurance naming the city. It sets right-of-way work hours of 7 a.m. to 5 p.m. on weekdays and requires calling 811 before any digging.

The package also lists a minimum permit cost that covers inspection time, so it's worth asking whether permit fees are included in each estimate you get.