"Several freeway improvement projects in the Phoenix area will require closures or lane restrictions this weekend," read a ...

ADOT is continuing work on several improvement projects that will cause delays for travelers across the Valley.

Drivers traveling through Tempe this weekend will have runners to account for, as the Rock 'n' Roll Arizona event warrants a number of road closures.

The Arizona Department of Transportation urged drivers to allow for extra travel time and to use detours due to closures from Feb. 28 through March 3.

"Allow extra travel time and prepare to use detour routes as needed," the Arizona Department of Transportation says.

The Rock 'n' Roll Arizona half marathon, 10K and 5K races are back in metro Phoenix. Here's what to know if you're running or driving around town.