PHOENIX – Parts of westbound Interstate 10 and northbound Interstate 17 will be closed from Friday night until Monday morning for work on Valley improvement projects.

In addition, a 60-day closure of the northbound Loop 101 off-ramp at Raintree Drive will begin starting at approximately 1 a.m. Monday

The Arizona Department of Transportation advises drivers to plan on using detour routes from Feb. 21-24:

•  Westbound I-10 will be closed between the I-17 “Split” interchange near Sky Harbor Airport and the I-17 “Stack” interchange near McDowell Road from 9 p.m. Friday to 5 a.m. Monday for deck joint work.

The southbound State Route 51 ramp to westbound I-10 will be closed. The westbound Loop 202 ramp to westbound I-10 will be open, but traffic must exit I-10 at Seventh Avenue, ADOT officials said. Primary Detour: Westbound I-10 traffic approaching the closure can detour to northbound I-17 and reconnect with I-10 at the Stack interchange. Secondary Detours: Drivers near westbound I-10 north of downtown Phoenix can consider using westbound McDowell Road or Van Buren Street to travel beyond the closure. Note: The Sky Harbor west exit ramp to westbound I-10 will be open for access only to northbound SR 51 or eastbound Loop 202 (toward Tempe).

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

The northbound I-17 on-ramps at Deer Valley, Pinnacle Peak, Happy Valley and Jomax roads will be closed. ADOT urges drivers to stay with the primary detour route and avoid using neighborhood streets next to I-17 that are not designed to handle freeway traffic. Detour: Northbound I-17 traffic can travel west on Happy Valley Road to northbound Lake Pleasant Parkway and use eastbound Loop 303 to return to I-17. Some street closures will be in place (local traffic only).

• Westbound I-10 will be narrowed to two lanes between 48th and 24th streets near Sky Harbor Airport from 7 p.m. Saturday to 4 a.m. Monday for pavement maintenance as part of the I-10 Broadway Curve Improvement Project.

The southbound SR 143 off-ramp at University Drive will be closed from 10 p.m. Saturday to 4 a.m. Monday for guardrail repair.

• The eastbound Loop 101 on-ramp at 59th Avenue and off-ramp at 51st Avenue will be closed from 11:30 p.m. Friday to 3 p.m. Saturday for a widening project.

For detours, plan on using other nearby ramps including the eastbound Loop 101 off-ramp at 59th Avenue and on-ramp at 51st Avenue.

• The northbound Loop 101 off-ramp at Raintree Drive closed for approximately two months starting at approximately 1 a.m. Monday for reconstruction as part of widening project.

The ramp is scheduled to be closed until late April. Detours: Consider exiting northbound Loop 101 at Cactus Road and using northbound Hayden Road or 94th Street to reach Raintree Drive.

We’d like to invite our readers to submit their civil comments on this issue. Email AZOpinions@iniusa.org.