A tow zone sign in Oregon must be visible from the driver's normal sight line as they enter the property, mounted at 7 feet minimum to bottom of sign per MUTCD §2A.18, with letter height of 3 inches minimum on the primary "TOW-AWAY ZONE" or "VIOLATORS TOWED" legend. Oregon ORS 98.812 requires posting at every entrance and at intervals along the property boundary, and the sign must include the tow contractor name and 24-hour phone number to be enforceable.
This guide walks the install procedure our crew at Cojo runs on every commercial private-property tow signage job across Salem, Eugene, and Portland metro. It covers visibility-distance math, sign spacing, photo-evidence support, and the failure modes that get tows contested.
What does ORS 98.812 mean by "reasonably calculated to provide notice?"
The Oregon tow statute does not specify exact dimensions or mount heights -- it requires the sign be "reasonably calculated to provide notice" to the driver. Case law and tow-contractor practice have settled on these working standards:
- The driver must be able to see the sign from the vehicle while approaching the property
- The sign must be readable at the typical decision distance (60 to 120 feet for entrance signs)
- The sign must include the tow contractor name and 24-hour phone number
- The sign must be at every vehicular entrance to the property
A sign that meets the dimensions but is hidden behind a tree or planter does not satisfy the standard. Visibility from the driver's normal sight line is the test, not the existence of the sign on the property.
How does visibility distance translate to sign size and letter height?
MUTCD §2A.13 specifies 1 inch of letter height per 30 feet of expected reading distance for night reading by elderly drivers. Practical translation:
| Driver decision distance | Letter height | Sign size match |
|---|---|---|
| 30 to 45 ft | 1.5 to 2 in | 12 x 18 standard |
| 60 ft | 2 in | 12 x 18 standard |
| 90 ft | 3 in | 18 x 24 |
| 120 ft | 4 in | 24 x 30 |
| 180 ft | 6 in | 30 x 36 oversize |
Where exactly does the tow zone sign mount?
Three placement rules:
- At every vehicular entrance. The sign is the first thing the driver sees on entering. A property with two entrances needs two signs.
- At intervals along the property frontage. Long commercial frontage where vehicles can enter at multiple unmarked points needs supplementary signs at 100 foot maximum intervals. Tighter spacing (50 to 70 feet) at downtown commercial corridors.
- At the head of any tow-restricted zone within the lot. Loading zones, fire lanes, ADA stalls, and reserved-tenant rows all need their own sign in addition to the property-entry sign.
The 7 foot mount height to bottom of sign is the same MUTCD §2A.18 standard that applies to public regulatory signs. We do not compromise on the 7 foot minimum -- lower mount heights get blocked by parked vehicles in the lots the sign is enforcing.
Step-by-step tow zone sign installation
Step 1 -- Map the property and identify sign locations
Walk the property and identify:
- Every vehicular entrance (primary and secondary)
- Every property-line frontage where vehicles can enter unmarked
- Every internal tow-restricted zone (loading zone, fire lane, ADA stalls, reserved tenant rows)
A 14,000 square foot retail center with two entrances and 220 feet of frontage typically needs 5 to 7 signs total.
Step 2 -- Verify line of sight
For each sign location, stand at the typical driver decision point (30 to 60 feet before the sign on the approach drive lane) and confirm:
- The sign location is visible from the decision point
- No vegetation, planter, or building element blocks the sight line
- The sign will not be blocked by parked vehicles in the adjacent stalls
If any sight line fails, relocate the sign or trim the obstruction. We have moved sign placements 20 to 40 feet on installs to clear a tree branch or signage clutter.
Step 3 -- Coordinate locate and dig
Call 811 for utility locates 48 business hours before excavating per ORS 757.541. Locate ticket number gets recorded on the install paperwork.
Step 4 -- Set posts and pour footings
24 to 30 inch deep footings in the Willamette Valley, 36 to 42 inch in Bend and Central Oregon. 10 inch sonotube, 3,000 psi mix. Plumb the post in two directions. Cure 24 to 48 hours before mounting signs.
Step 5 -- Mount signs at 7 foot AFG minimum
Bottom of sign at 7 feet minimum from finished grade. We typically install at 7.5 to 8 feet to maintain visibility above box trucks and SUVs in the adjacent stalls.
Step 6 -- Verify legend matches tow contractor
Confirm the tow company name and 24-hour phone number on every sign matches the active tow contract. A property manager who changes tow contractors after install must replace or relabel every sign on the property.
Step 7 -- Document for the tow contractor
Photograph every installed sign from the typical driver decision distance. The tow contractor needs these photos to verify compliance before they will execute tows under ORS 98.812.
What about supplementary curb paint and pavement stencils?
Layered communication strengthens enforceability. Optional supplementary marking at tow zones:
- Yellow curb paint along loading-zone tow zones
- Red curb paint along fire-lane tow zones
- Pavement stencils reading "TOW AWAY" or "NO PARKING" at 50 foot intervals
- Painted stall numbers at reserved-tenant rows
The supplementary marking is not legally required for ORS 98.812 enforcement, but it makes the signage system more defensible against contested tow claims. Photo evidence showing the violating vehicle alongside both vertical signage and pavement marking is harder to challenge in small claims court.
Industry Baseline Range
| Component | Cost per sign / per zone |
|---|---|
| 18 x 24 ORS 98.812 tow zone sign HIP Type III | $58 to $96 |
| 24 x 30 entrance tow zone sign HIP Type III | $86 to $138 |
| Sign post and footing (installed) | $244 to $410 |
| Custom legend screen-print with tow contractor info | $14 to $28 per sign upcharge |
| Full property tow signage (6 signs + 4 posts + footings) | $1,840 to $3,240 |
Current Market Reality
Tow contractor info screen-print pricing has stabilized at minimum order quantities of 4 to 6 units. Reflective sheeting prices climbed 4 to 6 percent annually from 2023 to mid-2026. Bundling tow signage with restripe and other private-property sign work cuts mobilization cost. Most of our Oregon property managers refresh tow signage on a 5 to 7 year cycle to track tow-contractor changes and sheeting fade.
Real install reference -- Salem multi-tenant office park
In April 2026, our crew installed tow zone signage at a 22,000 square foot Salem multi-tenant office park experiencing recurring weekend trespass-parking from a neighboring nightclub.
Spec delivered:
- 6 ORS 98.812 signs at 18 x 24 HIP Type III at the two vehicular entrances and along the 280 foot Liberty Street frontage
- 7.5 foot post-mount on hot-dip galvanized 2.375 inch round posts
- "PRIVATE PROPERTY -- TENANT PARKING ONLY -- VIOLATORS TOWED AT OWNER'S EXPENSE -- PER ORS 98.812 -- Acme Towing 503-555-9100"
- 2 supplementary signs at the head of each reserved-tenant row reading "RESERVED -- TENANTS WITH PERMIT ONLY"
Total: $2,840 installed. First weekend after install, three vehicles towed under ORS 98.812. Trespass-parking has dropped to roughly 4 events per quarter from 8 to 12 events per week.
Common tow zone sign installation mistakes
- Missing entrance. A sign at the primary entrance but not the secondary entrance creates an unenforceable zone.
- Mount height under 7 feet. Parked vehicles block the sign from incoming drivers.
- Stale tow contractor info on the sign. Old phone number breaks the photo-evidence chain and prevents tow execution.
- Faded sheeting on signs older than 7 to 10 years. Fails the "reasonably calculated to provide notice" test.
- Signs at the property line obscured by overgrown vegetation. Owner is responsible for maintaining sight lines.
- Single sign on a 220 foot frontage where vehicles can enter at any of 4 unmarked points.
For broader sign-category context, see our parking sign buyer's guide hub, the ORS 98.812 private property sign wording reference, and the best tow-away signs Oregon ranked roundup.
Tow zone sign installation FAQ
How tall should a tow zone sign be mounted in Oregon? 7 feet minimum from finished grade to the bottom of the sign per MUTCD §2A.18. Most Oregon commercial property installs default to 7.5 to 8 feet to maintain visibility above box trucks and SUVs in adjacent stalls. Mount heights below 7 feet get blocked by parked vehicles and violate the "reasonably calculated to provide notice" standard.
How far apart should tow zone signs be on a long commercial frontage? 100 foot maximum intervals along property frontage that allows unmarked vehicle entry. Tighter spacing of 50 to 70 feet at downtown commercial corridors. The first sign goes at the primary vehicular entrance and additional signs fill the frontage at the maximum interval.
Do I need a tow zone sign at every entrance? Yes -- ORS 98.812 requires posting at "all entrances or at intervals along the property boundary." A property with two entrances needs a sign at each entrance. Missing one entrance is the most common reason tows get contested in small claims court.
What needs to be on a tow zone sign legend in Oregon? "PRIVATE PROPERTY," a parking restriction (typically "NO PARKING" or "PARKING BY PERMIT ONLY"), tow-authority language ("VIOLATORS TOWED AT OWNER'S EXPENSE"), the statute reference "PER ORS 98.812," and the tow contractor's name and 24-hour phone number. All five are practically required for enforceability.
Can I install a tow zone sign without a permit in Oregon? Most Oregon municipalities do not require a permit for tow zone signs on private commercial property. Portland Title 32 and Salem Chapter 79 cover sign permitting but exempt regulatory parking signs from most permit triggers. A locate call through 811 under ORS 757.541 is required for any post installation regardless of permit status.