Improve I-70

Overview

I-70 is the most important transportation corridor in Missouri, connecting the state’s two largest cities and carrying more rural daily traffic than any other route. The interstate has been an engine for economic growth and prosperity.

The safety and economic prosperity of Missourians depends, in part, on an I-70 that grows along with the state and nation. That’s why The Missouri Department of Transportation is working to develop a plan for the future of I-70. Today, many portions of the facility are strained beyond capacity, increasing delays and dampening economic activity.

Deteriorating pavement and poorly functioning interchanges compound the problem and make travel on I-70 a daunting experience. And the problems are not exclusive to the metropolitan areas. By the year 2030, all segments of I-70 are expected to operate at unacceptable levels of service – meaning unstable traffic flow, stop-and-go conditions and traffic volumes over the roadway’s capacity.

The following information contains documentation from the NEPA tiered studies of the I-70 corridor.  For current project information, see the District pages.

 

TIER 1

Seven documents have been produced to detail how improvements to I-70 could impact the natural and man-made environments. Each document provides an evaluation of the reasonable alternatives for widening and rebuilding I-70 and recommend a preferred alternative.

On August 14, 2009, the Federal Highway Administration approved and signed the Record of Decision for the I-70 Supplemental Environmental Impact Statement.
I-70 Supplemental EIS Record of Decision


I-70 Improvement Study (First Tier) Documents
All information collected and decisions made during the I-70 Improvement Study are contained in the First Tier Environmental Impact Statement (EIS), which was released in late 2001.

Record of Decision- In December 2001, the I-70 Improvement Study's findings were accepted by the Missouri Department of Transportation and the Federal Highway Administration. This formal acceptance, published in the form of a Record of Decision or ROD, explains the study's findings and any commitments that were made as a result of the study. The ROD is available for your review below.

TIER 2

Seven documents have been produced to detail how improvements to I-70 could impact the natural and man-made environments. Each document provides an evaluation of the reasonable alternatives for widening and rebuilding I-70 and recommend a preferred alternative.

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