9 weigh stations · 4 interstates · updated October 2026
Pennsylvania Weigh Stations
All 9 weigh stations in Pennsylvania on I-79, I-81 and I-83 – location, direction and exit for every Pennsylvania weigh station.
Opens the map at your location – it stays in your browser.
Pennsylvania has 9 weigh stations in our data, on I-79, I-81, I-83 and I-380. Each Pennsylvania weigh station has its own page with its location, the direction of travel and the nearest exit.
8 stations serve one direction only – check the list for the side of the highway before you plan your route.
Whether a weigh station is open changes by the hour. The sign before the exit ramp shows OPEN or CLOSED, and it always has the final word.
Pennsylvania Weigh Station Map
Open the Pennsylvania weigh station mapWeigh Stations in Pennsylvania by Interstate
West to east or south to north, with the exit and what we know about each station.
I-792
| Weigh station | Direction | Exit |
|---|---|---|
| I-79 Southbound Weigh Station near South Strabane | Southbound | Exit 30 |
| I-79 Northbound Weigh Station near Cranberry | Northbound | Exit 78-77 |
I-812
| Weigh station | Direction | Exit |
|---|---|---|
| I-81 Northbound Weigh Station near Delano | Northbound | Exit 131B |
| I-81 Southbound Weigh Station near Delano | Southbound | Exit 131B |
I-831
| Weigh station | Direction | Exit |
|---|---|---|
| I-83 Southbound Weigh Station near Valley Green | Southbound | Exit 34 |
I-3801
| Weigh station | Direction | Exit |
|---|---|---|
| I-380 Southbound Weigh Station near Clifton | Southbound | Exit 20 |
Other highways3
| Weigh station | Direction | Exit |
|---|---|---|
| Chester Weigh Station | – | Exit 6 |
| PA 100 Northbound Weigh Station near Lionville | Northbound | – |
| PA 248 Westbound Weigh Station near Palmerton | Westbound | – |
What Happens at a Pennsylvania Weigh Station
When a Pennsylvania weigh station is open, trucks above the state’s weight threshold leave the highway and roll across the scale at low speed. A signal or a loudspeaker tells you to return to the highway or to park for a closer look. Officers can check your weight per axle, your credentials and your hours-of-service records, and they may inspect the vehicle itself.
If you’re overweight, you may get a fine and have to shift or remove part of the load before you can continue. Weighing first on a certified truck scale at a truck stop avoids most surprises.
Bypass Systems and Weigh-in-Motion
Many states pre-screen trucks at highway speed with weigh-in-motion sensors and electronic bypass programs such as PrePass or Drivewyze. Whether a particular Pennsylvania station takes part varies, so follow your in-cab signal and the roadside signs: when they tell you to pull in, pull in.
Federal Weight Limits
| Gross vehicle weight | 80,000 lbs |
|---|---|
| Single axle | 20,000 lbs |
| Tandem axle | 34,000 lbs |
Interstate System, 23 CFR Part 658. States may allow more with permits.
Pennsylvania Weigh Station FAQ
How many weigh stations are in Pennsylvania?
We list 9 weigh stations in Pennsylvania, mostly on I-79, I-81 and I-83.
Who has to stop at a weigh station in Pennsylvania?
Commercial vehicles above the state’s weight threshold must pull in when a station is open, unless a bypass system clears them. Private cars don’t. The posted signs at each station apply.
Are Pennsylvania weigh stations open 24 hours?
Some are, many aren’t – hours depend on staffing. Watch for the OPEN/CLOSED sign before each station.
Do RVs and pickups have to stop at weigh stations in Pennsylvania?
Privately used RVs, pickups and cars generally don’t, but rules for trailers and commercial use differ by state. The posted signs at the station always apply.
What is the weight limit at Pennsylvania weigh stations?
On interstates the federal limits apply: 80,000 lbs gross, 20,000 lbs on a single axle and 34,000 lbs on a tandem axle, unless a permit allows more.