9 weigh stations · 3 interstates · updated October 2026
Iowa Weigh Stations
All 9 weigh stations in Iowa on I-80, I-35 and I-29 – location, direction and exit for every Iowa weigh station.
Opens the map at your location – it stays in your browser.
Iowa has 9 weigh stations in our data, on I-80, I-35 and I-29. Each Iowa weigh station has its own page with its location, the direction of travel and the nearest exit.
7 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.
Iowa Weigh Station Map
Open the Iowa weigh station mapWeigh Stations in Iowa by Interstate
West to east or south to north, with the exit and what we know about each station.
I-804
| Weigh station | Direction | Exit |
|---|---|---|
| I-80 Westbound Weigh Station near Walnut | Westbound | Exit 46 |
| I-80 Eastbound Weigh Station near Walnut | Eastbound | Exit 46 |
| I-80 Eastbound Weigh Station near Van Meter | Eastbound | Exit 117 |
| I-80 Westbound Weigh Station near Mitchellville | Westbound | Exit 149 |
I-352
| Weigh station | Direction | Exit |
|---|---|---|
| I-35 Northbound Weigh Station near Osceola | Northbound | Exit 29 |
| I-35 Southbound Weigh Station near Joice | Southbound | Exit 214 |
Other highways2
| Weigh station | Direction | Exit |
|---|---|---|
| US-71 Weigh Station near Audubon | – | – |
| US-71 Weigh Station near Early | – | Exit 71 |
What Happens at a Iowa Weigh Station
When a Iowa 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 Iowa 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.
Iowa Weigh Station FAQ
How many weigh stations are in Iowa?
We list 9 weigh stations in Iowa, mostly on I-80, I-35 and I-29.
Who has to stop at a weigh station in Iowa?
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 Iowa 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 Iowa?
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 Iowa 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.