PHOENIX – A stretch of northbound Loop 101 in Scottsdale will be closed this weekend for work on a widening project north of Shea Boulevard, state transportation officials said Thursday.

Other weekend restrictions are scheduled, according to the Arizona Department of Transportation, and drivers should allow extra travel time and plan on using detours from Friday night, May 2, until Monday morning May 5.

• Northbound Loop 101 will be closed between Shea Boulevard and Pima Road/Princess Drive in north Scottsdale from 10 p.m. Friday to 5 a.m. Monday for a widening project.

 Northbound Loop 101 on-ramps at Via De Ventura and 90th Street also will be closed. Alternate routes include using westbound Loop 202 to northbound State Route 51 to reach Loop 101 in northeast Phoenix, ADOT officials said. Northbound Loop 101 traffic exiting at Shea Boulevard can detour west to northbound Scottsdale Road to reach Loop 101.

• Westbound Interstate 10 will be narrowed to four lanes between State Route 143 and 32nd Street (I-10 right lanes closed) from 10 p.m. Friday to 4 a.m. Monday for pavement work as part of the Broadway Curve Improvement Project. 

Southbound SR 143 ramp to westbound I-10 will be closed as will be the westbound I-10 off- and on-ramps at 40th Street and the westbound off-ramp at 32nd Street. In addition, the westbound I-10 on-ramp at Broadway Road will be closed. Note: Some ramp closures start at 8 p.m. Friday. Plan on using alternate routes including the westbound I-10 on-ramp at 32nd Street and westbound off-ramp at 24th Street. Note: University Drive will be closed in both directions at SR 143 from 8 p.m. Friday to 4 a.m. Monday for signal work. Detours will be in place.

• The westbound Loop 202 on-ramp at McQueen Road and off-ramp at Arizona Avenue will be closed from 10 p.m. Friday to 3 p.m. Saturday for bridge work as part of a widening project.

 The westbound Loop 202 right lane will be closed between McQueen Road and Arizona Avenue. Detours: ADOT suggests drivers consider using other nearby on- or off-ramps, including the westbound Loop 202 off-ramp at McQueen Road or westbound on-ramp at Alma School Road.