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Pearl and Mapleton streets: 30th Street has intermittent lane closures in the northbound right lane. The lane closure will be between Pearl and Mapleton. Traffic will be directed with arrow boards and traffic control devices. The project is expected to be complete in July.

Baseline and Gapter roads: Residents with direct driveway access from Baseline and parents of children attending the Countryside Montessori School are the only traffic allowed into the area. Access from Baseline to and from Meadow Glen Drive is also closed. Bobolink Trailhead access is open from Cherryvale Road to the east. The project is anticipated to end in March.

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.

Walnut and Mapleton streets: 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 to be complete in July.

North Broadway Street: Concrete is being added, and a bike lane is being installed on North Broadway. Vehicle lanes shift to the existing northbound lane and bike lane. The west sidewalk is closed. The bicycle and pedestrian re-route is on the west along Ninth Street. Construction occurs from 7 a.m. to 5 p.m. weekdays and is expected to be complete by Sept. 30.

Baseline Road and 55th Street: Traffic will be shifted to two lanes starting March 31 along Baseline, west of 55th. There will be periodic closures on Thunderbird Drive and the multiuse path west of Foothills Highway. The project is expected to be complete in July.

Folsom Street and Hawthorn Avenue: There are minor lane shifts on Folsom and bikes are required to merge with vehicle traffic at Hawthorn. A sidewalk detour is in place. Work is expected to be complete on Friday.

Lehigh Corridor: A detour is in place for pedestrians and cyclists from 9 a.m. to 5 p.m. The project is expected to be complete May 2.

Boulder County

North 95th Street and Vermillion Road: Work is underway to install a culvert. Vermillion will be closed for about two months at the ditch. Residents living west of the work zone will need to use North 87th Street to access Vermillion and their properties.

Cherryvale Road and 55th Street: Baseline Road from Cherryvale to 55th is closed as part of a sanitary sewer project. The closure is in place 24 hours a day, seven days a week through March.

Magnolia Road bridge: The bridge south of Colo. 119 and Boulder Canyon Drive is under construction. Work takes place from 8 a.m. to 5 p.m. weekdays. During working hours, Magnolia Road is reduced to one lane in the area. Flaggers are in place to direct traffic through the work zone. Crews may need to return in spring to complete the repaving portion of the project.

Walker Avenue and Morton Road: Residents of the Morton Heights subdivision in Niwot will see a waterline replacement project at the intersection of Walker and Morton that will require the full closure of the intersection in all directions from 7 a.m. to 6 p.m., Monday to Friday. Residents will need to use Audubon or Paiute avenues to enter and exit the subdivision during the closure.


Pratt and Main streets: There will be lane shifts for westbound drivers on Third Avenue from Pratt and Main streets while a water line is replaced. The affected from 7 a.m. to 7 p.m. starting March 28. There will also be limited on-street parking along Third Avenue as well as driveway, sidewalk and alley closures on the northside of Third Avenue. The driveways, sidewalks and alleys will be open overnight. Construction is expected to be complete May 6.

Lamplighter Drive to Alpine Street: 17th Avenue from Lamplighter to Alpine will be affected during a concrete rehabilitation project from Monday to Friday.

Bowen to Coffman street: Longs Peak Avenue from Bowen to Coffman will be affected during a concrete rehabilitation project from Monday to Friday.


South Boulder Road: As part of the South Boulder Road project, sidewalk upgrades will begin at Merlin Drive, near Alicia Sanchez Elementary, on Monday and will continue through Saturday. Work will occur from 8 a.m. to 6 p.m. Motorists should expect flagger-controlled, alternating lanes of travel. The sidewalk on the north side of the work zone will be closed for pedestrians and cyclists.

South Boulder Road: The LaMont Does Park parking lot is closed along South Boulder Road. The parking lot on Saratoga Drive will remain open and accessible for overflow parking. The restrooms at LaMont are also closed. Temporary restrooms are available in the Saratoga Drive parking lot.

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 because of buses stopping to pick up and drop off passengers.

RTD bus stop: RTD bus riders who use the stop on South Boulder Road at Robin Hood Street can catch the bus at the next stop on Sir Galahad Drive at South Boulder Road. Please be aware of all traffic and stay on designated paths.

South Boulder Road: The sidewalk on the south side of South Boulder Road from Saratoga Drive to 120th Street is closed. Pedestrians and cyclists should follow sidewalk detour signage and use the sidewalk on the north side of South Boulder Road in this area.


Multiple areas: There is restricted access for residents and contractors only to Original Town and Sagamore.