New Info

Night Work

After 15 years of planning, construction on the Central 70 Project is beginning this month. The Project will include intermittent nighttime work on and adjacent to I-70 from Brighton Boulevard to Chambers Road. Nighttime work must follow specifications set out in a variance recently approved by the Denver Board of Public Health and Environment.

Night work for general construction must stay under certain decibel levels (75 decibels on average/86 decibels peak). Work may occur Monday-Friday 9 p.m. to 7 a.m. and Saturday and Sunday 5 p.m. to 8 a.m.

General construction may not occur in the same residential area for more than five consecutive nights in a 7-day period.

When major construction activities (e.g. bridge demolitions) are scheduled, hotel vouchers will be offered to the eligibility zones. Major construction activities may not occur for more than three consecutive nights.

Night work will begin in the east segment of our Project on Sept 23. Below are the English and Spanish notification that will be distributed to residents in the area beginning early next week. Please do not hesitate to reach out to the team. Connect with us by calling 833-C70-INFO or email us at [email protected]

Notification of Work at Night for Central 70 Project General construction activities will begin the week of Sept. 23, 2018 and continue through the duration of the project. General construction activities will move from location to location throughout the corridor and include, but are not limited to:

  • Maintenance of Traffic (MOT) concrete barrier set/remove
  • Excavation, embankment, and grading work
  • Drainage and utility work
  • Bridge construction
  • Asphalt road surface removal
  • Asphalt road paving
  • Concrete work
  • Concrete road surface removal
  • Concrete road paving
  • Drilled shafts

Work activities will take place between the Colorado Boulevard/I-70 interchange and the Chambers Road/I-70 interchange.

This work is classified as general construction activity and must stay under certain decibel levels (75 decibels on average/86 decibels peak) during the overnight hours of Monday-Friday 9 p.m. to 7 a.m. and Saturday and Sunday 5 p.m. to 8 a.m.

To make a complaint about construction noise during the night call the 24-hour hotline at 833-C70-INFO (270-4636). A noise monitoring technician will be dispatched to the area in question within 30 minutes of the complaint. If noise levels exceed the allowed decibel range, work will be shut down. Residents can decide if they would like a call back with results that night or the following morning. Residents may also call the city at 3-1-1.

The Central 70 team is committed to being a good community partner and will closely monitor noise to ensure requirements are being met.

For more information, please visit, call 833-C70-INFO or email [email protected]

Noise Variance Request

Kiewit Meridiam Partners (KMP) has applied for a noise variance to work at night on the Central 70 Project. As with many large construction projects (such as the multiple-year T-REX Project which rebuilt a section of I-25) a noise variance request is a standard step in the pre-construction process. Without approval to conduct night work, impacts to commuters, residents and businesses are extended. Per City ordinance, variance requests are reviewed by the Denver Department of Public Health and Environment (DDPHE) and decided upon by the Board of Public Health and Environment.

DDPHE will consider input received by Wednesday, August 29th, in its written recommendation to the Board regarding the variance request. The recommendation from DDPHE will be posted on the Department’s website. The Board will also take into consideration all input provided in email/writing up until September 5th at 5 p.m.

Input for DDPHE’s recommendation and comments for the Board on the variance request can be sent via email to [email protected], or sent via regular mail or in-person to: DDPHE Board, 200 West 14th Ave., Suite 300, Denver, CO 80204. Note: All information received will be shared with the Board and is also considered a public record.

The Board of Public Health & Environment will hold a public hearing on Thursday, September 6, 2018 to consider the variance request, and members of the public can attend and provide public comment. For more information about the hearing, please view the Board’s Notice of Public Hearing. For more information on hearings before the Board of Public Health & Environment, please view the Board’s Rules Governing Hearings.

For more information about DDPHE’s Noise Program, visit us at and select the Noise Program.

In advance of the start of construction on Central 70, CDOT has partnered with the City of Denver to provide home improvements (e.g. insulation, air conditioning units and soundproof windows) to approximately 250 homes. The intent of these improvements is to reduce the impact of construction dust and noise to local residents.

Central 70 Telephone Town Hall

Telephone Town Hall recording from Monday August 6, 6:30 to 7:30 p.m.

Listen to it now

  • 1,552 overall attendees
  • More than 300 callers on halfway through the 60-minute call
  • Callers listened for an average of 17 minutes
  • 195 total votes for the three different questions

The Central 70 Project Officially Breaks Ground

Central 70 Breaks Ground

Gov. Hickenlooper today was joined by Mayor Hancock, Deputy Federal Highway Administrator Brandye Hendrickson, Colorado Department of Transportation's (CDOT) Executive Director Mike Lewis, local cities and counties, and the construction team to break ground on the Central 70 Project. The Project is the largest construction project in the state and is CDOT's second Public Private Partnership (P3).

“Today’s groundbreaking reflects our commitment to have our infrastructure meet the needs demanded by the country’s number one economy,” said Gov. John Hickenlooper. “This corridor of Interstate 70 has served the state well, but it’s time to no longer depend on a 54-year old stretch of interstate to handle the demands of a growing and mobile state.”

With construction anticipated to stretch through 2022, the Central 70 Project and KMP have pledged to minimize impacts to the adjacent communities and the traveling public. The Project will be built in phases and all lanes on the interstate must be kept open during daytime hours.

Swansea Art Fence Asbestos Soil Remediation

While installing the foundations for the art and safety fence on the campus of Swansea Elementary School, the construction team encountered an existing foundation and building debris from the historical school building. Some of the debris was suspected to contain asbestos. When the materials were tested, the results indicated that the samples were positive for asbestos content. Soil remediation will begin on July 31, 2018.

Prairie dogs will be donated to the Rocky Mountain Raptor Rehabilitation

Prairie dog removal begins on July 18 and will continue through August in various locations throughout the corridor. Prairie dogs will be donated to the Rocky Mountain Raptor Rehabilitation Program.

Application to close road/railway crossing at 46th Avenue and UPRR railroad tracks

In preparation for construction on the Central 70 Project, CDOT and the City of Denver have filed an application with the Public Utilities Commission to close 46th Avenue between York Street and Brighton Boulevard, to reconstruct the railroad tracks on a new bridge and construct a new roadway. Construction and the closure will start this summer. If you have comments on this closure, please send a letter to the address below. Parties have the right to file written intervention or objection with the Commission at 1560 Broadway, Suite 250, Denver CO 80202. If writing, include Proceeding No. 18A-0293R. All interventions or objection must be filed by no later than June 28, 2018.

Central 70 Project Office

The Central 70 Project Office will be located north of I-70 at Steele/Vasquez. Please watch for crews entering and exiting the work area as they prepare the site.

Construction starts on Central 70 this summer

Construction Schedule

Construction will begin on the Central 70 project this summer. One of the first action items is the closure of 46th Avenue between York Street and Brighton Boulevard, to allow for the construction of a railroad detour (adjacent to Purina, under the I-70 viaduct). Download the graphic.

Soil Testing Started April 2018

Central 70 Project construction crews will conduct soil characterization testing along the 10-mile corridor. The intent of this sampling is to develop a detailed picture of soil types and conditions. This sampling is a critical step in understanding those conditions and allowing the contractor to minimize truck trips in the neighborhood during construction.

Demolition of the Colonial Manor Motel

As part of the Central 70 Project, the demolition of the Colonial Manor Motel is underway. Removal of the motel will accommodate for the widened I-70 and realigned 46th Avenue North. This pre-construction activity is another step toward construction starting this summer on a highway that carries more than 200,000 vehicles per day.

This demolition process, which began in late March, will continue through late-April. Watch for truck traffic on Elizabeth Street and Thompson Court near 46th Avenue.

Financial Close Reached for Central 70

On Dec. 21, 2017 CDOT reached financial close with Kiewit Meridiam Partners. This is the final step in the contract process and sets the terms of the financing for the Project over the contract term. The Central 70 project website includes a complete copy of the contract. Summaries of the financial structure, both over the 4-year construction period and 30-year operation period, are available for download.

Kiewit Meridiam Partners Selected to Build and Operate Central 70 Project

Read the Press Release | Nota de Prensa

CDOT has selected Kiewit Meridiam Partners (KMP) as the preferred proposer to design, build, finance, operate and maintain the Central 70 Project. KMP was chosen from four teams of finalists who submitted proposals for the project in early June.
See Kiewit Meridiam Partners' project highlights.

Preparing for Construction

Selecting a Contractor

In August of 2017, CDOT selected Kiewit Meridiam Partners as the state's partner to design, build, and finance Central 70 as well as operate and maintain the project over a 30-year period. KMP was chosen from four teams of finalists who submitted proposals for the project in early June of 2017.

Finalizing the Contract

In November of 2017 CDOT finalized the contract, with Kiewit Meridiam Partners (KMP), the selected contractor for the Central 70 Project. The contract, also known as the Project Agreement (PA), establishes KMP’s scope of work in delivering the project and details each party’s rights and obligations over the term of the contract. Approval of the PA means that KMP is now officially on board to build Central 70, and the agreement will be in effect until 30 years after construction completion.

The next step is financial close, the stage at which financing is secured. Financial close is expected to occur before the end of January 2018.

The complete, final contract is available here. Given the length and complexity of this document, CDOT has prepared a summary of the project agreement. Additional documents relating to the Central 70 contract and financing are available on the HPTE website.

Download the latest construction fact sheet by using the large "Latest Construction Phasing" button on this page.

Meet SAM! Swansea Air Quality Monitor

At the request of the community, CDOT has partnered with Denver's Department of Environmental Health (DEH) and the Colorado Department of Public Health and Environment (CDPHE) to install a comprehensive air quality monitor at Swansea Elementary School. This Project is known as the Swansea Air Monitoring Station, or SAM. SAM is in the parking lot to the east of the school.

The air quality monitor at Swansea Elementary School has been running
continuously since last spring. A report summarizing the results is now
available. Click to see hourly updates.

Download the fact sheet.

Join the project team at the monthly Chips and Chat

You may be eligible for free home improvements

Central 70 fulfilling another commitment

The CDOT Central 70 Project and the City of Denver are partnering to provide home improvements to those living closest to the upcoming reconstruction of I-70. The purpose of this program is to reduce noise and dust during construction by providing improvements that help insulate homes. Homes between 45th and 47th avenues, between Brighton and Colorado boulevards are eligible to receive improvements.

The home improvements were a commitment to the community from CDOT during the 14-year Environmental Impact Statement process and became a requirement in the list of mitigation measures in the Record of Decision the project’s federal approval document. Call 303-757-9413 or email [email protected] to confirm eligibility and get more info.

The home improvements flyer

Resources for residents not in the eligible area

Recursos para Viviendas Fuera de la Zona de Mitigación

FAQ's from Denver City Council Committee meeting

Welcome from NDCC's Executive Director, Tim Sandos and information on
CDOT's homeowner improvements

'duct-work2' a success!

Named Westword’s 2016 Best Urban Art Project, we are building on the success of 'duct-work by presenting ‘duct-work 2! On Friday, Aug. 18, nearly 20 local artists started the process of transforming the viaduct from a beast to a beauty. We partnered with Denver Urban Arts Fund, North Denver Cornerstone Collaborative, Atkins, Xcel Energy and Denver Urban Arts Fund, along with other local sponsors, to fund this community art project and allowed artists to transform the viaduct into something remarkable.

On Saturday, Aug. 26, we wrapped up a week of painting with a community event featuring food from local vendors, the sounds of DJ Beau Sanchez and a community wall for kids to test their urban art skills!

Ductwork 2 photo

Download additional images

Neighborhood Career Training and Resource Center Opens in GES!

GES Opening

Central 70 is thrilled to celebrate the opening of a new neighborhood career training and resource center that will provide construction training and career support to local residents. The Central 70 Project, along with local partners, hosted a ribbon-cutting and media event on Thursday, July 6. The event also celebrated the $1 million investment from Gary Community Investments (GCI).

Speakers at the celebration included Denver Mayor Michael B. Hancock; CDOT Executive Director Shailen Bhatt; GCI Chief Executive Director Dave Younggren; Community College of Denver President Everette Freeman; Environmental Consulting Services Chief Executive Officer Jessica Acosta; and Denver City Councilmembers Albus Brooks, Debbie Ortega and Stacie Gilmore. Thank you to all who came out to support this milestone event.

Download the flyer to learn more about the
Neighborhood Career Training and Resource Center

Green Pillars on 46th Avenue

Green Pillar
Have you noticed the green pillars under the I-70 viaduct at Columbine and Clayton streets? These pillars indicate the east-west boundaries of the park that will be part of the Central 70 Project once construction is complete. This 4-acre park will be about 1,000 feet long, and will stretch across the lowered highway just south of Swansea Elementary School. The park will include amenities such as youth soccer fields and a splash park.

See flyover animations of the park and covered highway

Central 70 2017 Survey Results

Final RFP Released at March Meeting

At a joint meeting on March 3, 2017, the CDOT Transportation Commission and the HPTE Board approved the issuance of the final Request for Proposals (RFP) for the Central 70 Project. The final RFP was released to the four shortlisted teams on March 6.

Federal Highway Administration Approves Central 70 Project

On Jan. 19, 2017, the Federal Highway Administration (FHWA) approved the reconstruction of I-70 through central Denver, concluding a 14-year unprecedented outreach and community engagement process. In the official Record of Decision (ROD), federal transportation officials outlined what will be built, how it will be funded, and which environmental and community measures will be implemented.

Their approval concludes the federally required National Environmental Protection Act process and allows CDOT to proceed with its Central 70 Project. Construction is scheduled to begin in 2018.

Colorado: The Official State Web Portal