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Boulder

Walnut Street and Mapleton Avenue: The right lane on 30th Street heading northbound has intermittent lane closures. Arrow boards and signage are being used to direct traffic between Walnut and Mapleton. The project is planned for completion in July.

Central Avenue near 57th Court: The pedestrian bridge is closed at Central near 57th Court. An active detour is in place behind traffic barricades in the roadway. There is no set date for reopening the bridge.

Pearl Street: Pearl from Ninth to 11th streets is closed until April.

Pennsylvania Avenue: Pennsylvania from 12th to 13th streets is closed until April.

Canyon Boulevard and Folsom Street: There will be intermittent left lane closures Monday through Wednesday. Starting Thursday, there will be intermittent right lane closures through Friday. Construction is expected to take place from 9 a.m. to 4 p.m.

Sixth Street and Canyon Boulevard: There are eastbound lane closures on Canyon as well as a full lane closure on Sixth. Work occurs from 9 a.m. to 4 p.m. and is expected to be complete Wednesday.

Folsom Street and Regent Drive: Southbound lanes will be closed from Folsom to Regent, and lanes heading westbound will have one lane of traffic open in both directions. Construction will take place from 8 a.m. to 5 p.m. starting Wednesday and is expected to be complete Friday.

30th Street and Colorado Avenue: There are right lane closures westbound on Colorado and northbound and southbound on 30th Street. There are sidewalk detours, and temporary crossings are in place on 30th, Euclid Avenue and Colorado west of the intersection. Cyclists should merge with traffic. The northbound bus stop on 30th is closed. Construction is from 7 a.m. to 6 p.m. Monday through Friday. Work is expected to be complete in October.

North Broadway: Concrete is being added, and bike lanes are being installed on North Broadway. Vehicle lanes shift to the existing northbound lane and bike lane. The west sidewalk is closed. Construction occurs from 7 a.m. to 5 p.m. weekdays and is expected to be complete in September.

Boulder County

Magnolia Road bridge repair: The bridge south of Colo. 119 and Boulder Canyon Drive is currently under construction. Work takes place from 8 a.m. to 5 p.m. Monday through Friday. During working hours, Magnolia Road is reduced to one lane in the area. Flaggers are in place to direct traffic safely through the work zone. Work is expected to last through January.

Niwot Road and Walker Avenue: A drainage improvement project will start at the intersection of Niwot Road and Walker on Dec. 13. Traffic on Walker will be limited to southbound only, which means traffic will only be able to enter onto Walker from Niwot Road and not exit. A temporary traffic signal will be installed at Paiute Avenue during construction so residents and school staff and visitors can safely exit the area. The multiuse path and crosswalk at Niwot Road and Walker will remain open during construction. The project is expected to take seven weeks to complete.

Longmont

Heather Hill and Lombardy Street: The intersection of Heather Hill and Lombardy will be closed Tuesday until Dec. 16.

Multiple street closure: On Saturday, multiple streets will be closed for a parade. The streets impacted include Main Street from Third Avenue to Ninth Avenue, Coffman Street from Third Avenue to Ninth Avenue, Eighth Avenue from Bross Street to Coffman Street, Bross Street from Sixth Avenue to Ninth Avenue and Longs Peak Avenue from Gay Street to Main Street. The Roosevelt Park perimeter will be closed from 3 to 7 p.m. Main Street will be closed from 4 to 6:30 p.m., and Coffman Street will be closed from 4 to 6:30 p.m.

Lafayette

South Boulder Road: The eastern portion of LaMont Does Park parking lot is under construction and is closed. The parking lot on Saratoga Drive will remain open and accessible for overflow parking.

South Boulder Road: The road is in a two-way, head-to-head configuration on the north side of the road. Eastbound and westbound traffic will continue to use this configuration while crews install storm sewer pipe. Motorists can expect minor delays due to buses stopping to pick up and drop off passengers.

Weld County

Colo. 85 to County Road 29: County Road 34 will be closed Monday through Friday from Colo. 85 to County Road 29.

County Road 81 to County Road 83: County Road 10 from County Road 81 to County Road 83 will be closed from Wednesday to Friday.

County Road 31 to County Road 33: County Road 72 is closed from County Road 31 to County Road 33 until Friday.