Central 70 Project

Noise Variance Request for Nighttime Work on I-70

Public input and commentary welcome

Denver’s Board of Public Health & Environment has received a request from Kiewit Infrastructure Company for a variance to Denver’s Noise Ordinance (Chapter 36 of the Denver Revised Municipal Code) associated with planned nighttime work through 2022 on portions of I-70 that pass through Denver.  

This request will be heard at the Board meeting on Thursday, August 12 at 5:30 p.m. The location of the meeting is still to be determined. For more information on hearings before the Board of Public Health & Environment, please view the Board’s Rules Governing Hearings.

As part of the variance process, the Denver Department of Public Health & Environment (DDPHE) will provide a written recommendation to the Board, either to approve the request, deny the request, or approve with conditions. This recommendation must be finalized by Monday, July 19.

To allow for robust public input, DDPHE has submitted, and been granted, an extension to submit the written recommendation. DDPHE will finalize and post their recommendation to the Board by the end of the day on July 19. Input from community members and organizations will inform the recommendation. As such, DDPHE is seeking commentary regarding this variance request through Friday, July 16 at 5:00 p.m.

To provide input, please specify the recipient: DDPHE (for comments to be considered in the departmental recommendation), or DDPHE Board (for input to be considered in the Board’s final decision), and send via email to BEH@denvergov.org, or send via regular mail or in-person to: DDPHE or DDPHE Board, 101 West Colfax Avenue, Suite 800, Denver, CO 80202. You can also provide input by leaving a voicemail on our dedicated phone line – 720-865-5392. You do not need to provide a name or contact information if you wish to remain anonymous. 

  • DDPHE will consider input received by Friday, July 16 at 5:00 p.m., in its written recommendation to the Board regarding the variance request. View the summary of changes(PDF, 278KB) and the recommendation from DDPHE(PDF, 360KB).
  • The Board will also take into consideration all input provided in email/writing up until August 11 at 5:00 p.m.

The variance petition and associated exhibits are available for review here:


On September 6, 2018, the Denver Department of Public Health & Environment Board ruled that the initial variance for this work be approved with the recommendations provided by DDPHE and an amended duration of 12 months (instead of the 52-month timeframe being requested). As part of the approval of the variance, DDPHE agreed to monitor noise levels in the construction area and provide monthly updates to the Board on the project. 

You can view the original noise variance request for the Central 70 Project considered by the Board in September 2018 and other associated documents here.

On August 8, 2019 the Board voted to extend the noise variance for another 12 months.

August 8, 2019, Hearing Documents

On August 13, 2020 the Board again voted to extend the noise variance for another 12 months.

August 13, 2020, Hearing Documents

I-70 Noise Variance Fact Sheet

I-70 Noise Variance Fact Sheet Spanish Version(PDF, 183KB)

I-70 Noise Variance Fact Sheet English Version(PDF, 179KB)

Frequently Asked Questions

Frequently Asked Questions Spanish Version(PDF, 197KB)

Frequently Asked Questions English Version(PDF, 155KB)