|Begin: East of Route BB, Exit
End: Columbia, East
of Route Z, Exit 131
Length: 18 miles
Impact Study (EIS))
Section 4 is an 18-mile stretch of I-70
in central Missouri that passes through Columbia. Its termini
are west of Route J (Mile Post 116) and east of Route Z (Mile
Outside of Kansas City and St. Louis, Columbia
is the largest city along I-70 in the state, with 88,300 residents.
Columbia is home of the University of Missouri-Columbia, which
has an enrollment of 26,000 students and is the city’s
largest employer. Other features of SIU4 include several stream
crossings, and proximity to recreational areas and parks.
This section of I-70 carries volumes of
traffic that exceed the facility’s current capacity,
with most trips beginning and ending locally. There are 10
interchanges, with four classified as urban. Of the urban
interchanges, three are operating at unacceptable levels of
service, resulting in traffic slow-downs and stoppages. This
section of I-70 through Columbia also has a crash rate higher
than the statewide average.
Because this growing area is heavily
developed and improvements to I-70 could affect many local
interests, MoDOT has assembled a community input group with
the help of a professional facilitator. The Improve I-70 Advisory
Group is composed of people interested in planning I-70’s
future in the Columbia area. Other opportunities for public
input in the Columbia area include drop-in centers and public
meetings. All local input will help ensure that improvement
decisions for the future of I-70 balance the varied local
needs with the needs of I-70 travelers.