ADA Parking Striping in Hillsboro, Oregon: Bringing Your Lot Up to Code

Restriping a Hillsboro Lot to ADA Standards

In Hillsboro, most ADA parking problems are striping problems — stalls painted too narrow, access aisles missing their hatching, and wheelchair symbols faded by Tualatin Valley rain. Restriping is the step that turns a non-compliant Washington County lot into a compliant one, and for most owners it is the most cost-effective correction available. On the city's large tech-campus lots, it is also the most scalable, since the underlying grade is usually fine and the work is mostly about getting the paint and layout right.

This page covers what ADA-compliant striping involves in Hillsboro. For the legal backdrop, see our Oregon ADA parking compliance pillar; for the dimension and paint specs statewide, our Oregon ADA striping requirements for 2026 guide goes into detail.

What an ADA-Compliant Stripe Job Includes

A correct accessible stall means getting all of these right:

• Stall width: at least 8 feet for a standard accessible space; 8 feet for a van stall with the wider aisle, or 11 feet with a 5-foot aisle.
• Access aisle: 5 feet wide for car stalls, 8 feet for van stalls, with diagonal hatching and ideally "NO PARKING" lettering.
• The symbol: the International Symbol of Accessibility in each stall, white on blue.
• Borders and contrast: blue outlines that stay legible on fresh, dark asphalt.

The access aisle is the part Hillsboro owners most often misunderstand. It is the transfer zone a wheelchair user needs beside the vehicle, and it must connect to an accessible route to the entrance — not double as overflow parking. Our ADA access aisle striping spec covers the hatching and shared-aisle rules.

Layout Before Paint

The most valuable step in a Hillsboro ADA restripe comes before the paint: confirming the layout is correct. On large campus and retail lots, that includes verifying the accessible count against the total, the one-in-six van ratio, the aisle widths, and — critically for Hillsboro — that accessible stalls are distributed to serve the shortest route to each building entrance. A tech campus with several entries needs accessible parking near each, not all bunched at one lot.

For older downtown Hillsboro lots that have been traced over for years, the layout pass catches counts and aisle widths that no longer meet current standards.

Paint, Climate, and Durability in Hillsboro

Hillsboro's wet valley climate fades water-based traffic paint within 12 to 24 months — the blue borders and the wheelchair symbol wash out, and because a faded accessible marking can be cited as a violation, durability is a compliance concern. On sprawling campus lots, fade in far corners is easy to miss, which makes longer-life materials attractive.

Oil-based traffic paint adheres better than latex, and thermoplastic markings — several times the cost — can hold three to five years even under heavy employee traffic, often paying off in fewer restripe cycles on large lots. Timing matters too: the Hillsboro striping season runs late spring through early fall, and scheduling for the drier June-to-September window gives paint the best chance to bond before the rains return.

Restriping After Sealcoat

Hillsboro owners frequently pair an ADA restripe with a sealcoat, often section by section on large campuses. The order matters: sealcoat first, cure, then stripe onto the clean dark surface for maximum contrast and adhesion. A fresh sealcoat is the ideal moment to correct an ADA layout because the old lines are gone — a blank slate to fix counts, widen aisles, and reposition van stalls without fighting old paint.

Striping Your Hillsboro Lot Right

Whether you are reviving fading markings or rebuilding a non-compliant layout, ADA striping in Hillsboro means measuring the lot, confirming the layout and distribution against current standards, and applying durable paint in the dry season. A site visit pins down exactly what your lot needs.

Cojo Excavation & Asphalt stripes commercial lots across Hillsboro, Beaverton, and the Washington County tech corridor. See our Hillsboro parking lot striping overview, explore our professional striping services, or request a free quote and we will measure and plan a compliant layout.