Speed Limits and Control

The default speed limit in a residential area without posted signs

In Oregon, the default residential speed limit is 25 mph unless otherwise posted. Going even 35 mph exceeds the legal limit.

Traveling 70 mph on rural highway with no speed signs

The basic rural speed limit in Oregon is 55-65 mph. Driving at 70 mph is too fast without a posted sign.

Default speed limit through a school zone when children are present

Oregon school zone limits are 20 mph when children are present. Even driving 25 mph would be too fast in most marked zones.

Following posted limit during thick fog on rural highway

Oregon basic speed rule says you must drive at a speed safe for conditions even if it is below the posted limit.

Speeding up to 40 mph in a work zone with workers present

Work zones with workers present often have lower posted limits like 25-35 mph. Speeding here leads to doubled fines.

Driving 65 mph on interstate with clearly posted 65 mph signs

On Oregon interstates, 65 mph is typically the maximum for most cars unless otherwise indicated. It’s legal if posted.

Slowing to 20 mph on icy highway despite 55 mph signs

Under Oregon law, drivers must reduce speed during hazardous conditions like ice, even if posted limits are higher.

Maintaining 55 mph on mountain road with sharp downhill curves

Even if 55 mph is legal, Oregon law requires drivers to slow for curves, grades, and road features when necessary.

Driving slower than posted limit to avoid hydroplaning

Slowing down when hydroplaning risk is present is legal and encouraged under Oregon’s basic speed rule.

Driving 70 mph on straight empty freeway at night

The maximum speed on freeways is usually 65 mph. Nighttime emptiness does not allow for higher speeds without specific signs.

When turning a sharp turn in 35 mph zone

Oregon encourages drivers to adjust speed based on turns and curve severity to maintain control and safety.

Exceeding posted limit by 5 mph to keep up with traffic

Matching flow does not justify speeding. Oregon law penalizes drivers even if everyone else is speeding too.

Driving 30 mph in a residential area with heavy pedestrian traffic

Pedestrian heavy areas require reduced speeds. 30 mph may be legal by sign but unsafe due to foot traffic.

Driving 45 mph on city street marked with 35 mph sign

In Oregon, driving 10 mph over a posted sign even in a city is considered speeding and punishable.

Driving posted 55 mph limit during heavy downpour and low traction

Oregon law expects drivers to reduce speed based on weather. 55 mph may be too fast on slick roads.

Passing other vehicles at 75 mph in 65 mph freeway zone

Passing must still stay within posted limits. 75 mph in a 65 zone is speeding regardless of intention.

Driving 65 mph in zone with temporary 45 mph construction signs

Temporary posted construction zone limits override regular limits. 65 mph in a 45 mph zone is a violation.

Driving 20 mph in school zone at 9 p.m. at night

Oregon school zone limits apply only when children are present or during posted hours. At 9 p.m., 20 mph is unnecessary.