US-12 truck parking in numbers
US-12 has 5 public truck parking sites in the federal inventory, with 39 truck spaces across 3 states. That is an average of 8 spaces per site, against a national median of 15 for all public sites, so the sites on this route are smaller than typical.
The most spaces are in Montana (16, 41 percent of the route), then Washington (13). The fewest are in Idaho, with 10 at 1 site.
The largest site is Harlowton in Montana, at mile 100, with 16 truck spaces.
The longest stretch between two listed public sites in the same direction is in Washington: about 287 miles along the route, between mile 126 and mile 413. Private truck stops may fill part of that gap; plan the last stop of the day before you reach it.
These are capacities from the Bureau of Transportation Statistics inventory, not live availability, and private truck stops are not included. The hours of service guide explains why the 14-hour window, not the 11 hours of driving, decides where you need a space, and truck parking by state compares US-12 with the other interstates.
US-12 in Idaho 1 sites
- LenoreUS12, mile 28 10 spaces
US-12 in Montana 1 sites
- HarlowtonUS-12, mile 100 16 spaces
US-12 in Washington 3 sites
- Bevin Lake MDUS 12, mile 126 5 spaces
- Alpowa Summit EBUS 12, mile 413 4 spaces
- Alpowa Summit WBUS 12, mile 413 4 spaces