Proposal Highlights
The selected Design-Build contractor team, Improve 70 Alliance, was one of three shortlisted Design-Build teams. The winning proposal highlights engineering and design endeavors set out before the teams and an understanding of the local, statewide, and national importance of an improved I-70. The winning proposal includes:
-
Constructing a third lane in each direction on I-70 from Warrenton to I-64 in Wentzville, including replacing the existing I-70 lanes with new full-depth concrete pavement.
-
Interchange improvements at I-70 and the I-64/Route 61 interchange.
-
Interchange and outer road improvements in Foristell, Wright City, Warrenton, and at Route Z.
-
Realignment at the railroad bridge on I-70 between Wentzville Parkway and Route Z.
-
Addition of a third lane of travel to eastbound and westbound I-64 between I-70 and Route K.
-
The team has also committed to keeping two lanes of travel open on I-70 in both directions during peak travel times.
Project Renderings
Proposed design renderings of Improve I-70 Warrenton to Wentzville. More renderings and information are avaliable on this webpage.
Proposed design renderings of Improve I-70 Warrenton to Wentzville. More renderings and information are avaliable on this webpage.
Construction Segments and Schedule
Interchange Improvements
- I-70 and I-64/U.S. Route 61 Interchange (Plans)
- Wentzville Bottleneck / Norfolk Southern Railroad Bridge (Plans)
- I-70 Interchange at T/W in Foristell (Rendering)
- I-70 Interchange at T/W in Foristell (Plans)
- I-70 at Route 47 in Warrenton (Rendering)
- I-70 at Route 47 in Warrenton (Plans)
- I-70 at F/J/Elm in Wright City (Rendering)
- I-70 at F/J/Elm in Wright City (Plans)
MO Route 47 Bridge Replacement Plans & Displays
Press Release: MO Route 47 Bridge Closure on March 27, 2026
2026 Impacts:
- MO Route 47 over I-70 Bridge Removal
- Northbound MO Route 47 Detour
- Southbound MO Route 47 Detour
- I-70 and MO Route 47 Traffic Messaging
- Wildcat Drive Detour (U-Turn)
- I-70 Lane Split at Stracks Church Road
2027 Impacts:
- Spring 2027: Phase 3 North Service Rd. and Roundabout Construction
- Summer 2027: Phase 4 Continued Construction on North Service Rd.
- Summer 2027: Phase 5 Construction of Westbound I-70 Ramps
- Fall 2027: Phase 6 Construction of partial Westbound I-70 On Ramp
- Fall 2027: Phase 7 Temporary Pavement and Westbound I-70 On Ramp Construction
- Late 2027/Early 2028: Phase 8 Construction of Route 47 and North Service Rd. Intersection
Customers with visual impairments or other disabilities that require the use of a screen reader: please contact the Improve I-70 East Team at improvei70east@modot.mo.gov for a description of the image.
MO Route 47 Bridge Replacement Informational Video
Foristell Interchange Construction Phasing
- Phase 0 (Bridges) - I-70 and Route T/W Interchange in Foristell Construction
- Phase 1 - I-70 and Route T/W Interchange in Foristell Construction
- Phase 2 - I-70 and Route T/W Interchange in Foristell Construction Phasing
- Phase 3 - I-70 and Route T/W Interchange in Foristell Construction Phasing
- Phase 4 - I-70 and Route T/W Interchange in Foristell Construction Phasing
- Phase 5 - I-70 and Route T/W Interchange in Foristell Construction Phasing
- Phase 6 - I-70 and Route T/W Interchange in Foristell Construction Phasing
- I-70 and Route T/W Interchange Information Handout
Foristell Interchange Construction Phasing Videos
Use the gallery above to slide through each available construction phasing video. More videos wil be available as construction continues.
Roll Plot Displays for I-70
Display shows roadway plans for I-70 between mile markers 191 and 192. For the full size image visit https://www.modot.org/media/50684 For more accessibility assistance, please contact us at improvei70east@modot.mo.gov
Display shows roadway plans for I-70 between mile markers 192 and 193. For the full size image with zoom in capability visit https://www.modot.org/media/50688 For more accessibility assistance, please contact us at improvei70east@modot.mo.gov
Display shows roadway plans for I-70 between mile markers 193 and 195. For the full size image with zoom in capability visit: https://www.modot.org/media/50691 For more accessibility assistance, please contact us at improvei70east@modot.mo.gov
Display shows roadway plans for I-70 between mile markers 195 and 196. For the full size image with zoom in capability visit https://www.modot.org/media/50694 For more accessibility assistance, please contact us at improvei70east@modot.mo.gov
Display shows roadway plans for I-70 between mile markers 196 and 197. For the full size image with zoom in capability visit https://www.modot.org/media/50696 For more accessibility assistance, please contact us at improvei70east@modot.mo.gov
Display shows roadway plans for I-70 between mile markers 197 and 198. For the full size image with zoom in capabbility visit https://www.modot.org/media/50698 For more accessibility assistance, please contact us at improvei70east@modot.mo.gov
Display shows roadway plans for I-70 between mile markers 198 and 199. . For the full size image with zoom in capability visit:. For the full size image with zoom in capability visit: https://www.modot.org/media/50700 For more accessibility assistance, please contact us at improvei70east@modot.mo.gov
Display shows roadway plans for I-70 between mile markers 199 and 201. For the full size image with zoom in capability visit: https://www.modot.org/media/50702 For more accessibility assistance, please contact us at improvei70east@modot.mo.gov
Display shows roadway plans for I-70 between mile markers 201 and 202. For the full size image with zoom in capability visit: https://www.modot.org/media/50704 For more accessibility assistance, please contact us at improvei70east@modot.mo.gov
Display shows roadway plans for I-70 between mile markers 202 and 203. For the full size image with zoom in capability visit https://www.modot.org/media/50706 For more accessibility assistance, please contact us at improvei70east@modot.mo.gov
Display shows roadway plans for I-70 between mile markers 203 and 204. For the full size image with zoom in capability visit: https://www.modot.org/media/50708 For more accessibility assistance, please contact us at improvei70east@modot.mo.gov
Display shows roadway plans for I-70 between mile markers 204 and 206. For the full size image with zoom in capability visit: https://www.modot.org/media/50710 For more accessibility assistance, please contact us at improvei70east@modot.mo.gov
Display shows roadway plans for I-70 between mile markers 206 and 207. . For the full size image with zoom in capability visit: https://www.modot.org/media/50712 For more accessibility assistance, please contact us at improvei70east@modot.mo.gov
Display shows roadway plans for I-70 between mile markers 207 and 208. For the full size image with zoom in capability visit: https://www.modot.org/media/50714 For more accessibility assistance, please contact us at improvei70east@modot.mo.gov
Display shows roadway plans for I-70 between mile markers 208 and 209. For the full size image with zoom in capability visit: https://www.modot.org/media/50716 For more accessibility assistance, please contact us at improvei70east@modot.mo.gov
Display shows roadway plans for I-70 between mile markers 209 and 211. For the full size image with zoom in capability visit: https://www.modot.org/media/50718 For more accessibility assistance, please contact us at improvei70east@modot.mo.gov
Display shows roadway plans for I-70 between mile markers 211 and 212. For the full size image with zoom in capability visit https://www.modot.org/media/50722 For more accessibility assistance, please contact us at improvei70east@modot.mo.gov
Roll Plot Displays for I-64
Display shows roadway plans for additional lane of I-64 at log mile 1. See the full size display with zoom in ability here: https://www.modot.org/media/50667 For more accessibility assistance, please contact us at improvei70east@modot.mo.gov
Display shows roadway plans for additional lane of I-64 at log miles 1 through 3. See the full size image with zoom in ability here: https://www.modot.org/media/50668 For more accessibility assistance, please contact us at improvei70east@modot.mo.gov
Display shows roadway plans for an additional lane on I-64 between log miles 3 and 4. See the full size image with zoom in ability here: https://www.modot.org/media/50672 For more accessibility options, contact us at improvei70east@modot.mo.gov
Photo shows roadway plans for additional lane on I-64 between log miles 4 and 6. See the full size image with zoom in ability here: https://www.modot.org/media/50675 For more accessibility assistance, contact us at improvei70east@modot.mo.gov.
Display shows roadways plans for an additional lane at I-64 between logmiles 6 through 7. For the full size image with zoom in ability visit: https://www.modot.org/media/50677 For more accessibility assistance, please contact us at improvei70east@modot.mo.gov.
Display shows roadways plans for an additional lane of I-64 between logmiles 7 through 9. For the full size image with zoom in ability visit: https://www.modot.org/media/50679 For more accessibility assistance, please contact us at improvei70east@modot.mo.gov.
Display shows roadway plans for an additional lane on I-64 between log miles 9 and 10. For the full size image with zoom in ability, visit: https://www.modot.org/media/50681 For more accessibility assistance, please contact us at improvei70east@modot.mo.gov.