Parking Lot
ADA Parking Lot Compliance in Tigard, Oregon: 2026 Guide
Cojo
May 30, 2026
7 min read
Tigard is one of the busiest retail destinations in Washington County, drawing shoppers from across the southwest Portland metro to Washington Square, the Tigard Triangle, and the dense commercial frontage along Pacific Highway (99W) and Scholls Ferry Road. With the Bridgeport Village area just over the line in Tualatin, the whole corridor turns over enormous parking volume — and every one of those lots answers to the same accessibility rules: the 2010 ADA Standards for Accessible Design and Oregon's accessible-parking statute, ORS 447.233.
For Tigard property owners, ADA compliance is both a legal obligation and a practical safeguard. High-traffic suburban retail lots see thousands of trips a day, and accessible-parking complaints are common and inexpensive to file in Oregon — metro-area lots in particular draw the attention of disability-rights advocates. This guide walks the requirements that apply to a Tigard lot. The full statewide reference is our ADA parking compliance guide for Oregon.
The required accessible count scales with total lot size, following the federal table Oregon adopts.
| Total Parking Spaces | Required Accessible | Van-Accessible Minimum |
|---|---|---|
| 1–25 | 1 | 1 |
| 26–50 | 2 | 1 |
| 51–75 | 3 | 1 |
| 76–100 | 4 | 1 |
| 101–150 | 5 | 1 |
| 151–200 | 6 | 1 |
| 201–300 | 7 | 2 |
Accessible parking is defined by exact dimensions, and a stall that misses by inches is non-compliant.
The access aisle is where wheelchair lifts and ramps deploy, so it stays level with the stall and connects to a continuous accessible route to the entrance.
Accessible stalls and their aisles cannot exceed 2 percent slope in any direction. Tigard's lots on the rolling terrain west of 99W can drift past tolerance as the base settles, even when they were poured compliant. Slope has to be measured, not estimated, and a failure here means targeted regrading and repaving of the stall — not just fresh paint.
Each accessible stall in Tigard needs a vertical sign carrying the International Symbol of Accessibility, mounted at least 60 inches from the ground to the bottom of the sign so it stays visible when a vehicle is parked. Van stalls add a "Van Accessible" plate. Oregon law also requires a supplemental sign stating the fine for unauthorized parking — a requirement many national chains along 99W miss. The mounting specifics are in our ADA parking sign placement rules.
Tigard sits in the wet western Willamette Valley, where a long rainy season and steady UV fade traffic paint relatively quickly. A blue accessible symbol or the diagonal hatching in an aisle that looks crisp in early fall can wash pale by spring, and a worn symbol is treated as a missing one in a complaint. The sheer traffic of a Washington Square-area lot accelerates the wear, grinding markings down faster than a quiet office lot. Tigard lots should have their accessible markings inspected at least annually and repainted before they fade past legibility. The dry striping window in the valley is shorter than in drier parts of the state, so timing matters: traffic paint needs dry pavement above 50°F, which here runs roughly late spring through early fall.
Routine maintenance — sealcoating, crack filling, patching, refreshing existing lines — does not trigger new ADA obligations, though it can never make a lot less accessible than it was. But an alteration, such as a full resurfacing or overlay, triggers the duty to bring the parking and the path of travel up to current standards to the maximum extent feasible. If you are repaving a Tigard lot in the Triangle or along Scholls Ferry, fold the ADA upgrade into the same project — it is cheaper than restriping twice.
The most reliable way to know where your lot stands is a site-specific review. An ADA parking compliance audit measures counts, dimensions, slopes, signage, and surface condition and produces a prioritized punch list. From there, most Tigard lots need restriping, symbol stenciling, and signage corrections, sometimes with minor asphalt repair for slope or surface issues.
Cojo Excavation & Asphalt serves Tigard and Washington County with ADA restriping, signage, and the asphalt work that keeps accessible areas in tolerance. For general line work, see our parking lot striping in Tigard page, and our professional striping services outline the full scope.
The counts and dimensions above are general guidance under the 2010 ADA Standards and ORS 447.233. Every lot differs, so confirm yours with a survey. Request a free quote and we will assess your Tigard property.
Understand what happens during an ADA parking compliance audit, common violations found in Oregon commercial lots, and how to prepare your property.
Complete guide to ADA parking requirements in Oregon, including space dimensions, van accessible standards, signage rules, and ORS 447.233 specifics for commercial property owners.
See real before-and-after results of commercial sealcoating projects in Oregon and learn how this affordable maintenance extends parking lot life by a decade or more.
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