Website updated: December 9, 2014

Welcome to the I-70 East Environmental Impact Statement (EIS) project website! En Español – La página de internet del IIA de la I-70 Este está en línea en Español
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Click to view Visualization and Animation of the Preliminarily Identified Preferred Alternative

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Reports

Click to read the Supplemental Draft Environmental Impact Statement (SDEIS) Document

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Read the latest Online Notice

Join the I-70 East Email List:

Looking for information about the Purchase and Relocation (ROW) process - click here

Welcome to the I-70 East Environmental Impact Statement (EIS) project website!

Community Leaders Coordination Meetings - the December Meeting is cancelled (see Meeting Notices)
Comments Online! Nearly 900 comments were submitted to CDOT and FHWA on the SDEIS. The comments are available online and at several viewing locations (see the Reports page).
Supplemental Draft EIS Released (SDEIS) is available online on the Reports page
Meeting materials and summaries for the September Public Hearings are online - see Meeting Minutes
Meeting summaries for the November 19 and October 15, 2014 Community Leaders Coordination Meetings are available online - see Meeting Minutes
Preliminarily Identified Preferred Alternative - explore the Partial Cover Lowered Alternative in 3d - click to view Visualization and Animation
I-70 East Project Office Open - see Project Updates
Property Purchase and Relocation - CDOT has started the early acquisition efforts to purchase certain impacted properties. Click to read the Project Update below
CDOT Project Team to be in the Community - read the Project Update
CDOT is NOT Considering Rerouting I-70! Read the Project Update
See Detailed Design Maps for the SDEIS Alternatives. New engineering drawings for the Partial Cover Lowered Alternative Basic and Modified Options have been added! See the Alternatives page
Notice to Elyria and Swansea Residents: Community Mitigation Update - Read the Project Update
Get involved and stay informed about the project! Join the email list, see New Info, and attend the next meeting

Supplemental Draft EIS (SDEIS) Released — August 29, 2014. Click to read the Project Update below

Supplemental Draft EIS Released August 29

I-70 East Supplemental Draft EIS is available for public review and comment! CDOT encourages you to comment from August 29 - October 31.

More info »

Public Hearings

Meeting materials & summaries from the September 23, 24, & 25 Public Hearings are available online!

Meeting materials and summaries from the September Public Hearings are online!

Meeting Minutes

November 19th Community Leaders Coordination Meeting

October 15th Community Leaders Coordination Meeting

View meeting minutes »

SDEIS Comments Online! Public and Agency

Comments Received on
SDEIS Available Online and at Viewing Locations

The comment period on the Supplemental Draft EIS (SDEIS) began on August 29 and closed on October 31, 2014. The comments received on the SDEIS are available online and at viewing locations: Reports

More info »

Upcoming Meetings

Community Leaders Coordination Meeting

December meeting

cancelled

More info »

Project Snapshot

Read the I-70 East EIS Project Snapshot

Read the I-70 East EIS Project Snapshot »

Consultants
& Contractors

Learn about project procurement and how to schedule a consultant and contractor meeting »

You may have heard ...

Visualization & Animation

Visualize the Partial Cover Lowered Alternative – explore the Partial Cover Lowered Alternative in 3d with animated video.

Project Updates

Supplemental Draft EIS (SDEIS)

I-70 East Supplemental Draft EIS is available for public review and comment! CDOT encourages you to comment from August 29 - October 31. CDOT is encouraging the public to comment on the I-70 East Supplemental Draft EIS that evaluates transportation alternatives to improve safety, access and mobility while addressing congestion in one of the state's most heavily traveled corridors, I-70 from I-25 to Tower Road.

The Supplemental Draft EIS (SDEIS) is a report that includes a detailed analysis of the social, environmental, and economic effects of the project alternatives as required by the federal government according to the National Environmental Policy Act (NEPA). The 2008 Draft EIS alternatives were modified and a new alternative option was developed that better met the project's purpose, need, goals, and objectives and satisfied the public's and agencies' expectations. Due to these changes and further developments on the project, the Supplemental Draft EIS identifies environmental impacts not previously identified.

View the I-70 East Supplemental Draft EIS (SDEIS): Reports

Comments Online!

The comment period on the Supplemental Draft EIS (SDEIS) began on August 29 and closed on October 31, 2014. The comments received on the Supplemental Draft EIS have been posted on the Reports page.

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I-70 East Project Office

3501 East 46th Avenue (Denver Rescue Mission)

CDOT Right of Way Specialists will be available at this location to answer questions about property purchases and the relocation process. Translators are available upon request.

More information: I-70 East Project Office

The I-70 East Project Office is not accessible under the Americans with Disabilities Act (ADA). For disability assistance, please call 303.313.2459 in order for CDOT to arrange other accommodations. Dial 711 to use Relay Colorado (TTY).

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I-70 East EIS - Visualize the Partial Cover Lowered Alternative - see animated videos and still imagery

Preliminarily Identified Preferred Alternative

Visualization & Animation

Visualize the Partial Cover Lowered Alternative—explore the Partial Cover Lowered Alternative in 3d with animated video

Click Visualization & Animation to see animated videos and still imagery of the Partial Cover Lowered Alternative.*

The Partial Cover Lowered Alternative is the Preliminarily Identified Preferred Alternative for the I-70 East EIS project. This Alternative adds additional lanes in each direction of the highway to provide better mobility between I-25 and Tower Road, removes the existing viaduct between Brighton Boulevard and Colorado Boulevard, rebuilds I-70 along this segment below grade on the existing alignment, and places a cover on the highway between Columbine Street and Clayton Street.

Visit often—this is a work in progress!

I-70 East EIS - Visualize the Partial Cover Lowered Alternative I-70 East EIS - Visualize the Partial Cover Lowered Alternative I-70 East EIS - Visualize the Partial Cover Lowered Alternative
I-70 East EIS on YouTube - see all of the Preliminarily Identified Preferred Alternative Animations on YouTube

* Visuals represent conceptual design; further refinement of the design will occur during future phases of the project.

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I-70 East Corridor Project: Creating a Better Future

This video features the structural, safety and congestion challenges the I-70 East Corridor Project currently faces between Brighton Boulevard and Tower Road in Denver, Colorado. It presents a solution developed by CDOT and the community.

http://youtu.be/V6yJddTX19M

Let's create a better future.

Your input is essential!

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Property Purchase and Relocation Process

CDOT has started the early acquisition efforts to purchase certain impacted properties for the I-70 East Project. Agreements have been reached with owners and these purchases are almost complete. By June, CDOT will begin closing on multiple properties, and these properties will be vacated. Perimeter fencing will be installed and an environmental inspection of the properties will be completed. The properties will be temporarily boarded up. This entire process, ending with demolition, will take several months to complete. During this time, the neighborhood will be monitored. Should you notice any suspicious activity, please call 911.

For more information about the property purchase and relocation process see the Purchase & Relocation (ROW) page.

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Share Your Ideas for Improvement to the Project

Community Mitigation Update, Notice to Elyria and Swansea Residents (Dec. 2013) (thumbnail) Since the start of the I-70 East project a decade ago, the Colorado Department of Transportation (CDOT) and the Federal Highway Administration (FHWA) have demonstrated a strong commitment to engaging the communities along the study area to be a part of the decision making process.

CDOT would like the members of the community to know what the plans are for reducing impacts of the I-70 East project on the community and how they can participate in making the project better for their neighborhood. For more information about the measures being considered to reduce impacts and how to provide input please read the notice to Elyria & Swansea Residents (this document will be updated periodically):

Community Mitigation Update (Dec. 2013)

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CDOT Project Team to be in Community

I-70 East EIS Team Member ID Card - project team members will have project identification cards like the one shown here As part of the I-70 East project, members of the project team will be in the community performing a variety of field survey functions. They will be easily recognizable by the I-70 East project identification tags they will be wearing. They will be using various types of surveying and monitoring equipment to identify the location of utilities and other notable land features.

If you have any questions or in the event you believe that any I-70 East project personnel inadvertently entered property other than the public right-of-way, please notify Lee Lovell at Atkins at 720.475.7090. Please note that any concurrent activities by the personnel of the public utility companies are beyond the control of I-70 East project team.

Notice to Elyria and Swansea Residents—CDOT has been notified by concerned residents that individuals have been going door-to-door in the neighborhood with materials on the I-70 East project. If you have any questions on whether or not the person approaching you is from CDOT, please ask them for their project identification tags or call the project office at 303.313.2420.

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FACTS about the I-70 East EIS Project. You may have heard ...

MYTHS & FACTS about the I-70 East EIS Project

You may have heard ...

MYTH:  "Families being moved for the project aren't being treated fairly."

FACT:  Acquiring homes is one of CDOT's most difficult and serious undertakings. However, treating families fairly during this process isn't just a matter of principle, it's Federal law. The Uniform Relocation Assistance and Real Property Acquisition Policies Act of 1970 (Uniform Act) was enacted by Congress to make sure people whose homes are affected by the project will be treated fairly and equitably.

For example, when homeowners are unable to purchase comparable replacement housing at price levels equal to what CDOT paid for their property, the department is required to make up the difference between the fair market value of a residential property and the cost of active listings of similar properties with similar characteristics. CDOT must provide equivalent protections when it comes to renters, including assistance in the purchase of a home, if possible. Several renters affected by the I-70 East project already have become homeowners as a result of the CDOT process. More information is available at: Purchase & Relocation (ROW)

MYTH:  "The I-70 East project will make air quality worse."

FACT:  I-70 East, along with other infrastructure projects, are "an historic, once-in-a-generation opportunity to rebuild a connected, healthy community for all people," reported a September 2014 Health Impacts Assessment by the Denver Department of Health. An in-depth analyses of five major air pollutants, seven air toxins and greenhouse gases conducted for the I-70 East EIS found that the proposed project wouldn't make air quality worse – and had the same level of emissions as the "no-action" alternative. CDOT takes the health of residents in the neighborhoods seriously – it is a defining concern of the project. More information is available in the recently published SDEIS (Volume 1).

MYTH:  "Ten lanes will cost too much."

FACT:  CDOT is making a 100-year investment on I-70. Building eight lanes instead of ten provides a very modest cost difference, but shortens the long-term life of the corridor. While eight lanes may be enough for traffic on opening day in 2021 or 2022, they won't be able to handle the projected traffic growth over the lifetime of the project. Tolled express lanes also offer travelers choices that will better manage congestion for decades, unlike the T-REX project on I-25, where congestion clogged the new highway after only five years. Getting this right on the lowered section of interstate is critical as we can't go back in and add more lanes later. More information is available in the SDEIS (Volume 1).

MYTH:  "There is no need for the project."

FACT:  The I-70 East viaduct is the last of the 30 worst bridges identified following the passage of the FASTER legislation in 2009. It's 50 years old, deteriorating and must be replaced soon. The 12-mile corridor from Brighton Boulevard to Tower Road is critical to the whole state's economic health, tying together DIA, downtown Denver, mountain resorts and communities on the Western Slope and Eastern Plains. This robust business and residential corridor is projected to keep growing over the next 25 years, pushing the estimated traffic volumes to 285,000 vehicles per day from 117,000 vehicles per day today by 2035. Population in the areas served by I-70 East will increase 41 percent and employment will grow by 59 percent, making it one of the region's most important growth corridors. More information is available in the SDEIS (Volume 1).

MYTH:  "Lowering the highway means floods."

FACT:  CDOT's experts on urban drainage are working to build-in measures that would protect the highway from a 100-year flood, including new basins or ponds that will hold excess water, as well as two new, large-capacity culverts that would discharge rainwater to the South Platte around the Denver Coliseum. Rainwater from the highway would flow to the lowest point near York Street, where it will be gravity-fed through pipes to a treatment plant before discharging it to the South Platte River. If there are storms larger than a 100-year event, CDOT would close the highway.

Stapleton Tunnels MYTH:  "The cover at Swansea Elementary will cause shadows and ice like the old Stapleton airport tunnels."

FACT:  The proposed I-70 East project bears little resemblance with the Stapleton tunnels, which were originally constructed over fifty years ago. CDOT is proposing a modern structure with shoulders for snow storage that also will reduce shadows that would cause icing. Take a look at this picture below compared to what CDOT is proposing at www.i-70east.com/viz.

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CDOT is NOT Considering Rerouting I-70!

Perceptions and Realities - click to view the PDF - last updated October 2013 (thumbnail)

Read about some of the false perceptions and learn about the realities regarding this alternative: Perceptions and Realities »

Letter of Support to CDOT - City and County of Denver, Adams County, and Commerce City (thumbnail)

Click to read the Letter of Support from the City and County of Denver, Adams County, and Commerce City to CDOT »

Recently, there have been many questions about whether CDOT is evaluating an alternative that would realign I-70 around Denver using Interstates 270 and 76. This alternative was eliminated from consideration early in the project process, as documented in the Draft EIS (DEIS).

Additional reasons for not considering this option a reasonable alternative for I-70 East will be included in the Supplemental Draft EIS (SDEIS), expected to be available in Spring 2014. The alternatives being evaluated by CDOT for improvements to I-70 can be found on the Alternatives page.

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See Detailed Design Maps for the SDEIS Alternatives

See Detailed Design Maps for the SDEIS Alternatives (thumbnail) Visit the Alternatives page to view the DRAFT design maps of the alternatives being considered in the upcoming SDEIS. These are the maps that are discussed at the monthly Community Leaders Coordination Meetings.

New engineering drawings for the Partial Cover Lowered Alternative Basic and Modified Options from Brighton Boulevard to Tower Road are now available online!

 

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Decisions are coming for I-70 East

The Colorado Department of Transportation (CDOT) and the Federal Highway Administration (FHWA) are close to making decisions on the I-70 East project. See what we have recommended as the Preferred Alternative to improve I-70 between I-25 and Tower Road. Our goals are to resolve congestion, improve safety, and make it easier to get on and off the highway. The recommended Preferred Alternative is the result of many conversations with the community and public input. We are close to making a decision. We want to hear your opinion. Tell CDOT what you think!

What is the recommended Preferred Alternative? See the Alternatives page.

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