Boulder

• 28th Street improvements: Pearl to Iris. This project will improve multimodal travel along 28th Street from Pearl to Iris. Northbound 28th and Valmont Road RTD Stop #17992 serving 205 and BOLT routes will be temporarily relocated to just south of the Valmont intersection until Dec. 31.

• 28th and Colorado protected intersection improvements: One westbound vehicle lane on Colorado Avenue will be closed. Drivers will be directed to the other westbound lane that remains open. The westbound transit stop at 28th and Colorado will be closed; transit riders are directed to the transit stop at 30th and Colorado. The project is expected to last until May 31.

• 19th Street and Fourmile Canyon Creek Underpass: Crews will begin replacing the bridge over Fourmile Canyon Creek and construct a bike/pedestrian underpass. During construction at all times, seven days a week, 19th Street will be closed to northbound vehicles, bikes and RTD bus service at Sumac Avenue with a detour at Quince Avenue via Broadway. Northbound RTD 204 bus stops at Riverside and Upland will be temporarily closed. Work is anticipated to end March 2, 2026.

• Juniper Avenue bridge maintenance: In order to complete repairs to the bridge structure, make drainage improvements, asphalt overlay and add new sidewalk, Juniper Avenue will be reduced to one-lane traffic 24 hours a day. Yield to oncoming traffic through work zone. Work is expected to be completed by May 24.

• 30th Street multimodal improvements: On 30th Street from Colorado to Arapahoe, crews will be adding sidewalk-level protected bike lanes and transit stop improvements, requiring single lane closures as needed on 30th Street. Work is expected to be completed Feb. 11, 2025.

Boulder County

• Riverside Drive at Cave Creek culvert replacement: A new culvert will be installed at the Cave Creek crossing on Riverside Drive and CR 103. This work will require a full closure of Riverside Drive at Cave Creek. Work will start at the end of March and the closure is anticipated to begin in early April. The closure is anticipated to last through the summer. All work is weather permitting. Residents of Riverside Drive west of Cave Creek (uphill) will need to use Peak to Peak Highway to access their properties. Residents of Riverside Drive east of Cave Creek (downhill) will need to use South St. Vrain Road/CO 7 to access their property. The project is expected to last through July.

• 95th Street (Valmont to Lookout Road) reconstruction and flood safety improvements: 95th Street between Valmont and Lookout roads will see significant construction activity lasting through the year. The project will be completed in two phases. The first phase, which is the reconstruction of the roadway, will require daytime, weekday road closures. The second phase, which is the construction of a large new culvert system, will require a full roadway closure. In addition, a new traffic signal and intersection configuration will be created at Lookout Road and 95th Street. Expect daytime, weekday lane shifts with short travel delays.