Post Oak Rest Area Northbound – I-57
Looking for a break on I-57 northbound near Selmaville, Illinois? Post Oak Rest Area is along the way. Reported truck parking: 18 spaces. The next northbound stop is Green Creek Rest Area, about 51 miles further along I-57.
Location map
Marker shows recorded coordinates, not an entrance or approved driving route. Follow highway signs.
Open directionsReported parking capacity
Reported capacity from the 2019 federal truck parking survey (FHWA Jason's Law). This is not real-time vacancy information.
Facilities and amenities
Unknown (not documented in the sources): Family restroom, Accessible facilities, Picnic tables, Pet area, Vending machines, Public phone, RV dump station, EV charging.
A reported facility does not guarantee current availability.
About this rest area
The Post Oak Rest Area serves northbound traffic on Interstate 57 near Selmaville, Illinois. We have no dated confirmation of its current operating status. Confirm the current situation with the Illinois Department of Transportation before you plan a break here.
Location and driving direction
The rest area sits on the northbound side of I-57 near Selmaville. It is listed near mile marker 114.
The southbound lanes have their own facility, Post Oak Rest Area; make sure the entrance matches your direction of travel.
If you would rather drive on, Green Creek Rest Area is the next listed stop, around 51 miles ahead by the mile markers.
Parking and amenities
The 2019 federal truck parking survey (FHWA Jason's Law) lists 18 truck parking spaces.
Listed amenities include:
- Restrooms
- Drinking water
These are capacity figures, not a live count of free spaces. Individual facilities can be closed temporarily.
Parking rules
Illinois limits stays at rest areas to 3 hours for all vehicles; a shorter limit can be posted when a rest area is full. Tollway oases have their own rules. Posted signs at this rest area can set a different limit. Source: 92 Ill. Adm. Code 533.20 (checked November 2026).
Map and coordinates
Recorded coordinates: 38.596702, -88.964312. The point marks the recorded position, not the entrance ramp, so follow the highway signs.
Frequently asked questions
Is this rest area on I-57 Northbound?
Yes. The federal truck parking inventory record identifies it as the northbound facility on Interstate 57 near Selmaville. The southbound lanes have a separate facility.
Is truck parking available?
The 2019 federal truck parking survey (FHWA Jason's Law) lists 18 truck parking spaces at this facility. This does not indicate how many are currently free.
Can I get drinking water and use the restroom?
Yes, both are included in the official amenities listing. Check current conditions before travel.
How long can I park here?
Illinois limits stays at rest areas to 3 hours for all vehicles; a shorter limit can be posted when a rest area is full. Tollway oases have their own rules. Posted signs on site apply.
Where is the next rest stop?
Green Creek Rest Area, about 51 miles further along I-57 by the official mile markers.