I-80 closures Saturday morning between Laramie and Cheyenne due to crash

Courtesy: WYDOT
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CHEYENNE, Wyo. (RELEASE) - UPDATE 12:30 pm:
I80 Laramie - Cheyenne: Open to all traffic BOTH DIRECTIONS

UPDATE 12:00pm:
I80 Exit 348, Otto Rd - Cheyenne: Closed WESTBOUND due to hazardous material. As of August 12 at 12:01 p.m., the estimated opening time is in 2 to 5 hours. Parking on the roadway is prohibited and delays WYDOT from opening the road.
Exit 335, Buford - Exit 348, Otto Rd: Closed WESTBOUND due to hazardous material. As of August 12 at 12:01 p.m., the estimated opening time is in 3 to 5 hours. Parking on the roadway is prohibited and delays WYDOT from opening the road.
Laramie - Exit 335, Buford: Closed WESTBOUND due to hazardous material. Laramie - Cheyenne: Open to all traffic EASTBOUND. 12-AUG 12:01

UPDATE 11:50 am:
Hazmat crews have determined it is safe to reopen the eastbound lanes of I-80 as well as one westbound lane. Cleanup of the crash is still expected to take 12 hours or more.

ORIGINAL 11:30 am:
Interstate 80 between Laramie and Cheyenne is CLOSED to all traffic following a Saturday morning crash at mile marker 338.
The interstate is expected to be closed for 12 hours or more.
WYO 210 (Happy Jack Road) is closed to commercial vehicles.
The single-vehicle crash involved a tractor trailer carrying ethanol. The truck rolled over from the westbound lanes. Hazmat crews are on scene.