Construction Updates

KDOT K-7/I-70 INTERChange project

In mid-March 18, 2013, a KDOT replacement project began on the Riverview Avenue Bridge spanning over I-70 (MM 224.9) in Wyandotte County. This is the first part of KDOT's ten-phase K-7 and I-70 Interchange Project. Riverview Avenue project work includes replacement of the existing bridge along with the realignment of a section of Riverview Avenue and 122nd Street to accommodate the new longer bridge. For information on this project, including additional impacts to traffic on I-70/Turnpike, please visit the project web site.

Reconstruction of Wittenberg Road & 29th Street bridges

Reconstruction of the Wittenberg Road Bridge and re-decking of the 29th Street bridge crossing over the Turnpike/I-470 near mile markers 180 and 181 in southeast Topeka are set to begin soon, weather permitting.

  • Wittenberg Road Bridge will close to all traffic on Monday, March 24th.
  • Work on the 29th Street Bridge will begin on Monday, March 31st. The 29th Street Bridge will remain open to traffic during construction.

The Wittenberg Road (Br. No. 181.190) and the 29th Street (Br. No. 180.510) Bridges have deteriorated to the point they need to be reconstructed. LG Barcus is the contractor for the project. Construction on both bridges are expected to be complete in November. Kansas Turnpike/I470 travelers  can expect intermittent lane closures throughout the project.

Most bridges crossing over the Turnpike are approximately the same age – 50+ years. During the next several years, KTA will be re-decking many of these bridges. Future bridge re-decking schedule will be determined by annual bridge inspections.

Map showing Wittenberg & 29th Street bridges

Mulvane Toll Plaza Temporarily Closed

The Mulvane toll plaza (exit 33) is temporarily closed until early October. Traffic will detour through the toll plaza adjacent to the Kansas Star Casino. During this time, self-pay equipment will be installed and other plaza updates will occur.

KTA Fact

SPEED LIMIT CHANGES
1956 - 1957
Reasonable and Prudent

1957 - 1970
80 mph Maximum
40 mph Minimum

1970 - 1974
75 mph Maximum - Day
70 mph Maximum - Night
40 mph Minimum

1974 - 1987
55 mph Maximum

May 1987
65 mph on rural interstates
55 mph through town of 50,000 or more and from Emporia to Topeka

October 1987
Emporia to Topeka re-classified as I-335 and now 65 mph

1993
65 mph around Wichita & Topeka

1996
70 mph from Oklahoma line to I-70/435. 65 mph from I-70 to 18th St.

1997
Entire Turnpike changed to 70 mph

2011
Turnpike from K-7 near Bonner Springs south to Oklahoma border changed to 75 mph