What is a driveway?

What this means for your home project

1. For a Skagit County driveway bid, request the base depth and driving width in writing; compare the reply with the county’s eight-inch base and 12-foot surface requirements. (source)
2. For a Skagit County driveway, compare its recorded length with 300 feet to determine whether the county’s turnout rule applies. (source)
3. For driveway paving along a Pennsylvania state route, ask the PennDOT permit inspector to determine whether the work qualifies as maintenance only before planning the permit scope. (source)

What are the construction requirements for a driveway?

Driveway construction requirements vary locally. Skagit County specifies a "12-foot driving surface" over at least eight inches of gravel base. Portland applies City Code section 17.28.110 and TRN 10.40 to driveways accessed from its public right-of-way. Compare the written scope with the rules for the road serving your property. (Read 2026-11-06.) (source)

“The driveway must be constructed using a minimum of eight inches of gravel base and a 12-foot driving surface.” (source) “For driveways longer than 300 feet, turnouts are required every 300 feet.” (source) In Portland, “The standards of PCC 17.28.110 and TRN 10.40 always apply to any driveway accessed from a City of Portland right-of-way.” Source: City of Portland, read 2026-11-06.

Why Are Gravel Driveways Considered Impervious?

Gravel driveways can shed rainwater rather than absorb it. The City of Falls Church attributes its impervious classification to "compaction of the underlying soil and stones by vehicles." Impervious here means the surface prevents water from soaking in; loose-looking gravel alone does not establish drainage performance. (Read 2026-11-06.) (source)

“Gravel driveways are considered impervious because they prevent infiltration, which results in stormwater flowing off these surfaces at a higher rate than pervious surfaces.” (source) “This is typically due to compaction of the underlying soil and stones by vehicles.” (source)

Are There Permeable Driveway Surfaces?

Permeable driveway surfaces provide an alternative to gravel that the City of Falls Church classifies as impervious. The city lists "permeable pavers, grass pavers, porous concrete, and porous asphalt." Its FAQ also identifies permeable driveway surfaces as eligible for its local stormwater credit. (Read 2026-11-06.) (source)

“There are several widely accepted permeable surfaces available for use as a driveway and which would qualify for a stormwater credit.” (source) “The most common permeable pavers, grass pavers, porous concrete, and porous asphalt.” (source)

When is a permit required and how long is the process?

Driveway permit timing can affect the work schedule. For qualifying work within Pennsylvania state highway right-of-way, PennDOT says "It may take 30-90 days" for issuance. Location and the nature of work can require additional review; this is permit timing, not a driveway construction duration. (Read 2026-11-06.) (source)

“A permit is required when a driveway, local road or drainage facility, or structure is constructed or altered within state highway right-of-way and may alter or need to be connected to a PennDOT drainage facility.” (source) “It may take 30-90 days for a permit to be issued.” (source) “Sometimes an application will need to be reviewed by additional units depending upon the location and nature of work, (i.e. within a planned construction area, delicate or specialized work).” (source)

My driveway has potholes. When can you fix them?

Driveway pothole repairs remain the property owner’s responsibility in PennDOT’s Pennsylvania FAQ. PennDOT says it "cannot fix potholes on private driveways," including driveways meeting state routes. The FAQ points owners to PA Title 67, Chapter 441 for maintenance and repair responsibilities concerning pavement conditions. (Read 2026-11-06.) (source)

“PennDOT cannot fix potholes on private driveways, even if the driveways intersect with a state route.” (source) “PA Title 67, Chapter 441, defines maintenance and repair responsibilities for driveway owners with respect to pavement conditions.” (source) “Property owners are responsible for fixing the potholes.” (source)

Sources

• Development and Review: driveway construction FAQ — Skagit County; read 2026-11-06.
• Stormwater: gravel driveways FAQ — City of Falls Church; read 2026-11-06.
• Frequently asked questions: personal property issues — PennDOT; read 2026-11-06.
• Driveways: standards and permit requirements — City of Portland; read 2026-11-06.