An 18-wheeler has jackknifed on U.S. 280 at Red Mountain Expressway and authorities expect more traffic issues to come as snow blanketed many Alabama roadways overnight.

”Right now, if I was a driver, I’d consider every bridge impassable whether that bridge is impassable or not,’’ said Jefferson County EMA Director Jim Coker.

”I would consider every road to be a risk and do everything you can to alleviate that risk,’’ he said.

Alabama State Troopers report snow and ice-covered roads for most of central and north Alabama.

See also: Your photos and videos of Alabama snow

U.S. 31 in Vestavia Hills headed toward Homewood near Brookwood Baptist Medical Center is closed and barricaded.

In Talladega County, Childersburg has closed all city roads, said ALEA Lt. Jeremy Burkett, and authorities are on the scene of a wreck on I-20 eastbound between mile markers 165 and 168.

The roads are also covered with ice and snow in Calhoun County where several crash investigations and motorist assists are in progress, Burkett said.

In Pickens County, all roads have been deemed impassable as of 7:30 a.m.

All roads are covered in snow and are becoming impassable in Etowah, Dekalb and Cherokee counties, King said.

There are reports of several crashes on I-59 between the 185 and 190 mile markers in Etowah County.

Authorities in Chambers County are reporting ice and slick spots on multiple roads, with the bridge over Wehadkee Creek being the worst area currently.

So far, said Trooper Cpl. Reginal King, Tuscaloosa, Bibb, Green, Sumter, Dallas, Perry, Hale, Wilcox and Marengo counties are reporting no significant weather or road conditions.

Here are travel reports from across the state:

Birmingham Post:

Jefferson County – Roadways are covered with ice and snow.

St. Clair County – Roadways are covered with ice and snow. Trooper advised it is raining in St. Clair County at this time. There are multiple vehicles and tractor trailers stuck in the two right lanes at Interstate 20 westbound 153 mile marker. ALEA Troopers are on scene clearing the vehicles, no crashes have occurred at this location.

Shelby County – Roadways are covered with ice and snow.

Quad Cities Post:

Colbert County – All roads are covered with snow and ice and are impassable at this time.

Franklin County – All roads are covered with snow and ice and are impassable at this time.

Lauderdale County – All roads are covered with snow and ice and are impassable at this time.

Hamilton Post:

Fayette County – All roads are covered with snow and ice and are impassable at this time.

Lamar County – All roads are covered with snow and ice and are impassable at this time.

Marion County – All roads are covered with snow and ice and are impassable at this time.

Walker County – All roads are covered with snow and ice and are impassable at this time.

Winston County – All roads are covered with snow and ice and are impassable at this time.