PHOENIX – Improvement projects this weekend will require closures or lane restrictions along sections of interstates 10 and 17.

In addition, a closure also is scheduled along northbound State Route 143 near Sky Harbor, state transportation officials said.

Here is the weekend work that will take place from Friday night, Feb. 14, through Monday morning, Feb. 17:

• Southbound I-17 will be closed between Loop 303 and Happy Valley Road in north Phoenix from 10 p.m. Friday to 5 a.m. Monday for a pavement improvement project. 

Southbound I-17 on-ramps at State Route 74/Carefree Highway and Dove Valley Road also will be closed. Drivers should stay on the primary detour route and avoid using local streets, according to the Arizona Department of Transportation. Primary detour: Southbound I-17 traffic will exit to westbound Loop 303 and use southbound Lake Pleasant Parkway to eastbound Happy Valley Road to return to I-17. Some street closures will be in place, allowing local traffic only.

• Westbound I-10 will be narrowed to two lanes in areas between Elliot Road and 24th Street near Sky Harbor Airport from 8 p.m. Friday to 4 a.m. Monday for work on the I-10 Broadway Curve improvement project.

Westbound I-10 traffic will usenew local lanes (collector-distributor road) between Baseline Road and 40th Street. Westbound US 60 will be narrowed to one lane between Rural Road and I-10. Drivers can use the westbound US 60 ramp that now connects with the westbound I-10 local lanes. Westbound I-10 on-ramps at Baseline and Broadway roads will be closed. Note: All I-10 on- and off-ramps at 32nd Street will be closed from 8 p.m. Friday to 4 a.m. Monday for signal work. 32nd Street also will be closed in both directions near I-10. ADOT suggests drivers considering using 40th Street.

• Northbound State Route 143 will be closed between I-10 and Loop 202 near Sky Harbor Airport from 10 p.m. Friday to 4 a.m. Monday for pavement marking and lane shifts as part of the I-10 Broadway Curve project. 

Northbound 48th Street will be closed between Broadway Road and I-10. Note: Some ramp closures and other restrictions can start at 8 p.m. Friday. SR 143 detour: Use alternate routes, including westbound I-10 to eastbound Loop 202 to reach southbound SR 143.