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Section of Pearl Parkway to Be Closed January 10-11 for BNSF Quiet Zones Railroad Crossing Work

UPDATE 1/7/21: This press release previously reported that BNSF Railway will be closing portions of Pearl Parkway and 55th Street on Jan. 10-11 to perform Quiet Zones work. Please note that as of Jan. 7, BNSF has cancelled the work on 55th Street but will be proceeding with the work on Pearl Parkway on Jan. 10-11. We will update the community if a new date is determined by BNSF for the 55th Street Quiet Zone improvements.

In order to install necessary infrastructure for a future Quiet Zone at the Pearl Parkway railroad crossings, BNSF Railway will be closing portions of the street on Jan. 10 and 11 between 6 a.m. and 6 p.m.:

  • Pearl Parkway will be closed between Junction Place and Frontier Avenue. Through-traffic will be detoured north to Valmont Road. Access to parking garage entrances off of Pearl Parkway will be restricted in the closure area. Pedestrian sidewalk access will be maintained.

The Pearl Parkway railroad crossing will be designated as a Quiet Zone following approval of the new infrastructure by the Federal Railroad Administration and the Colorado Public Utilities Commission.

Quiet Zones address the impact of train horn noise on surrounding neighborhoods and businesses through physical infrastructure that allows train engineers to pass through railroad crossings without needing to sound train horns. Train engineers still have the authority to sound the horn if unsafe conditions exist.

In response to concerns expressed by community members regarding the impacts of train horn noise, the City of Boulder is also designating Quiet Zones on Valmont Road (completed), 47th Street south of Diagonal Highway, and 63rd Street north of Arapahoe Avenue.

Quiet Zones work includes both roadway improvements managed by the City of Boulder and railroad improvements managed by BNSF Railway, which owns the right-of-way at railroad crossings in the city. Funding to design and construct Quiet Zones comes from a $1 million grant from the Denver Regional Council of Governments (DRCOG) with a local match of $200,000 from the City of Boulder transportation fund.

For more information on Quiet Zones, visit For real-time updates on construction and traffic impacts, visit

Media Contact:
Samantha Glavin, Media Relations, 720-667-9480

Published Jan. 6, 2021