Travel is now open and work is complete on the underpass! Join the community celebration on April 22.

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Celebrate with us! 19th Street underpass opening, Bike to School Day, and Earth Day celebration 04/22/2026 09:45 04/22/2026 08:00 America/Denver <p class="address" translate="no"><span class="address-line1">Crest View Elementary School, 1897 Sumac Ave.</span><br> <span class="address-line2">Centennial Middle School, 2205 Norwood Ave.</span><br> <span class="locality">Boulder</span>, <span class="administrative-area">CO</span> <span class="postal-code">80304</span><br> <span class="country">United States</span></p> MM/DD/YYYY CONFIRMED OPAQUE

All neighbors welcome to join

The new underpass will allow students, families, and neighbors walking and biking to cross 19th Street completely separate from vehicle traffic to access Crest View Elementary, Crestview Park, and other destinations to the east and west. New LED lighting has also been installed in the underpass and will stay on 24/7.

The city and Boulder Valley School District invite the community to celebrate on April 22, local Bike to School Day — and Earth Day — with city staff, school communities, Transportation Advisory Board and City Council members, and surrounding neighbors.

Join from 8 to 9 a.m. near the new 19th Street and Fourmile Canyon Creek underpass at Crest View Elementary School, 1897 Sumac Ave. Boulder, CO 80304.

A bike ride will leave from Crest View at 9 a.m. and head to Centennial Middle School to highlight the projects’ transportation improvements. Join from 9:15 to 9:45 a.m. at Centennial Middle School, 2205 Norwood Ave, Boulder, CO 80304.

Learn more about each project below: