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I-70 at Fifth Street & Fairgrounds Improvement Project (a project in partnership with the City of St. Charles and St. Charles County)

ProjectOverview

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For further questions on the project, please contact MoDOT Resident Engineer John Lewis at 888-ASK-MODOT (275-6636) or by email at John.Lewis@modot.mo.gov

Project Alerts & Updates (updated 8/23)

There are no additional lane closures this week as part of the I-70 and Fifth Street/Fairgrounds Road improvement project.  However, there will be two lanes closed on both eastbound and westbound I-70 between Fifth Street and Route 94 from 11 p.m. to 6 a.m. Monday through Thursday of next week. 

Below is a list of the ongoing closures:

  • Various lane closures from 7 a.m. to 5:30 p.m., daily, on northbound and southbound Fifth Street between Veterans Memorial Parkway and Ameristar Boulevard
  • The eastbound I-70 exit to Fifth Street is closed until November so crews can build the new northbound ramp into the new diverging diamond interchange at Fifth Street.  In the meantime, drivers can exit at Fairgrounds Road, go around the roundabout and take Veterans Memorial Parkway to Fifth Street. 
  • The entrance ramp from Fifth Street to westbound I-70 is closed through mid-September.  Drivers can detour around the closure by taking EITHER eastbound I-70 to northbound Route 141 and then looping back onto westbound I-70 OR by taking Boone’s Lick to Route 94 to westbound I-70.
  • The left lane on eastbound I-70 between Route 94 and Fifth Street is closed through mid-September. 
  • The left lane on westbound I-70 between Fifth Street and Route 94 is closed through mid-September.
  • Fairgrounds Road over I-70 is closed until mid-September. 

 

Information from previous updates:

  • The new westbound I-70 exit to southbound Fifth Street is open.  The exit is a shared ramp with the westbound I-70 exit to northbound Fifth Street.  Drivers wanting to go southbound will have to stop at a signal before making the left turn onto Fifth Street. 
  • The new eastbound I-70 exit to Fairgrounds is open. 
  • The new westbound I-70 exit to northbound Fifth Street is open. 
  • The new ramp from southbound Fifth Street to eastbound I-70 is open.  Drivers must stop at a traffic signal before turning left onto eastbound I-70.  This is temporary until the diverging diamond interchange is complete in November
  • Veterans Memorial Parkway between Fairgrounds Road and Fifth Street is one-way (eastbound only).  This is a permanent change.  Drivers coming from Fifth Street should take Boone's Lick Road to Route 94 to Veterans Memorial Parkway to access the area. 

 

OneWay

To see photos of the ongoing construction, please visit St. Charles County's Flickr page.

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What will the project include?

5thStreet

  • replacement of the Fairgrounds Road overpass
  • new sidewalks along Fifth Street, Veterans Memorial Parkway and Fairgrounds Road
  • new bike lanes at the Fairgrounds Road overpass

Click here for a full project map.                                                                           

Why is the project needed?

The project will help improve traffic flow, as well as access to and from Interstate 70 at the very busy Fifth Street interchange.  This will improve the overall safety of the area and provide better access to a variety of St. Charles County‚Äôs top attractions, including the Ameristar Casino, Historic Main Street and the St. Charles Convention Center.

***Please Note: this project is not a part of the City of St. Charles' Fifth Street Gateway Project currently under construction between Bass Pro Drive/Ameristar Boulevard and First Capitol Drive.

What kind of traffic impacts will there be?

The project will require nighttime and weekend lane restrictions, as well as the narrowing of Interstate 70 in both directions.  Other impacts will include:

  • an around-the-clock lane closure on westbound I-70 between Fifth Street and Route 94 from late March to late May
  • an around-the-clock lane closure on westbound I-70 before Fifth Street in early spring
  • an around-the clock lane closure on eastbound I-70 in early spring
  • a 120-day closure of the Fairgrounds Road bridge in late spring 2016
  • a weekend closure of 5th Street in fall 2016
  • the closure of the commuter lot at Fairgrounds and I-70 throughout the project.  The nearest commuter lot is at I-70 and Zumbehl Road.

Crews will limit impacts on holidays and large scale events,         such as the Festival of Little Hills. 

 

Below is a general schedule of when work will begin in each location.  Dates are subject to change.  Any changes will be update as they become available.

MARCH
  • Westbound I-70 at Route 94 (narrowing and shifting of lanes through May)
  • Westbound I-70 ramp to 5th Street
  • 5th Street ramp to eastbound I-70
  • Veterans Memorial Parkway near Fairgrounds
APRIL
  • Fairgrounds Road south of Veterans Memorial Parkway (signals will be removed and temporary four-way stop will be in place)
  • Veterans Memorial Parkway east of Fairgrounds (traffic will be on a temporary by-pass)
  • North Outer Road at Fairgrounds (construction of new ramps at I-70 and Fairgrounds)
MAY
  • Removal of Fairgrounds Road bridge (120-day closure of Fairgrounds between Veterans Memorial Parkway and Booneslick)
  • 5th Street ramp to westbound North Outer Road
JUNE
  • Work continues on new Fairgrounds Road bridge
JULY
  • Eastbound I-70 ramp to 5th Street (exit will be closed/motorists will detour onto the newly opened Fairgrounds Road interchange)use newly opened
  • Veterans Memorial Parkway traffic becomes eastbound only
AUGUST
  • Work continues at Fairgrounds interchange
SEPTEMBER
  • Work continues at Fairgrounds interchange
OCTOBER
  • 5th Street Diverging Diamond work underway (will require a 36-hour closure of 5th Street to switch traffic)

What is the construction schedule?

The project will begin in March of 2016.  Schedule updates will be posted as the become available, but the milestone dates include:

  • The 5th Street interchange is expected to be completed by late November 2016. 
  • All roads are expected to be open by late 2016.
  • All construction is expected to be completed by spring 2017. 

The schedule is subject to change and is weather dependent.

What is the cost of the project?

The project was awarded to Millstone Weber for approximately $20 million.  The cost is being shared between MoDOT, the city of St. Charles, St. Charles County and the federal government.  Below is a breakdown of the funding.

FundingBreakdown

Where can I get more information?

For any further questions, please contact MoDOT Resident Engineer John Lewis at 888-ASK-MODOT (275-6636) or by email at John.Lewis@modot.mo.gov.  To receive e-updates on the project, click here.

 
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