Lawrence

• Phase one of annual street maintenance project on Sixth Street from Massachusetts Street to Iowa Street. Completion: late July.

• Complete reconstruction of the westbound lanes of Bob Billings Parkway from Kasold to Crestline Drive. One-lane traffic both directions. Delays expected. Completion: Aug. 12.

• Repairs to concrete curbs and street pavement from Sixth to North Park streets and from Vermont to New Hampshire streets. Parking limitations and some single-lane traffic. Completion: mid-August.

• Add a center turn lane on Sixth Street between Folks Road and Monterey Way. Completion: mid-July

• Single-lane traffic both ways on Kasold Drive between Clinton Parkway and 31st Street for rebuild of road. Access from side streets is right-turn only. Completion: late November.

• Kansas River levee closed — for construction of Bowersock Mills & Power Co.’s new plant on the north bank — so users will be detoured to city streets crossing at the controlled intersection of North Second and Locust streets. Completion: late 2012.

• Second phase of overlay and crack sealing projects could mean temporary single-lane closures. For a map of the overlay projects go to lawrenceks.org/public_works/streetmaintenance and click on “2011 Street Maintenance Plan.”

• Microsurfacing program. To find out what streets are being worked on, visit the city’s website, www.ci.lawrence.ks.us. Completion: late July.

Douglas County

• County Road 442 closed for pavement rehabilitation from Lawrence city limits to Wakarusa River Bridge in Eudora. Traffic will be rerouted to K-10 and North 1500 Road. Completion: end of July.

• County Road 9 closed between U.S. Highway 24-40 and Interstate 70 for bridge construction. Completion: late spring.

• County Road 458/North 1000 Road closed between U.S. Highway 59 and East 1400 Road — which is about one mile east of U.S. 59 — as part of construction of new interchange for U.S. 59 and to repair bridge east of U.S. 59. Local access for residents of area available. Other traffic will follow marked detour. Completion: mid- to late July.

U.S. Highway 24

• Intermittent lane closures near U.S. Highway 24 and Airport Road as crews install sanitary sewer collection holding system. Completion: early August.

U.S. Highway 59

l North 200 Road closed at U.S. Highway 59 for frontage road construction work. Completion: late 2012.

Interstate 70/Kansas Turnpike

• Reconstruction of three miles just east of Lawrence. One-lane traffic each direction between mile markers 208 and 211. Access to the Lawrence Service Area will remain open. Expect delays during rush hour. Completion: November.

• Replacement of 142nd Street bridge in Leavenworth and Wyandotte counties. Both lanes of 142nd Street closed between Kansas Avenue and Riverview Avenue. Daily lane closures could occur on I-70 and the right shoulder. Completion: late fall.

Interstate 435

• Bridge painting at Johnson Drive interchange means varying lane closures from 7 p.m. to 6 a.m. Monday through Friday. Ramps will remain open. Completion: mid-July.

• Pavement-repair from 87th Street to Midland Drive and on the Holiday Drive interchange ramps in Johnson County. Lane closures from 7 p.m. through noon Monday through Friday and from 7 p.m. until 1 p.m. on the weekend. Completion: late October.