Johnson County Gateway Project Phases:
Substantially completed in December 2012, this phase (Yellow Project) added two additional lanes running in each direction along I-35 from 119th Street to I-435.
Beginning in 2014, this will be the design-build phase of the project and will address many of the existing traffic concerns identified in the Concept Study.
Still pending funding and timing, this phase will build the remaining interchange improvements identified in the Concept Study once Phase 2 is completed.
- Fall 2008
Johnson County Gateway: I-435/I-35/K-10 Concept Study began. The Concept Study evaluated the growth and development in the area in order to provide safety and traffic improvement recommendations for the interchange area.
- Fall 2009
KDOT local consult meetings identified the Johnson County Gateway as a high priority for the region.
- May 2010
The Kansas Legislature passed Transportation Works for Kansas (T-WORKS) a 10-year transportation program. As part of that program, the legislature approved the use of design-build as an alternative delivery method on one project in Johnson or Wyandotte County. Because of its size and complexity, the Johnson County Gateway Phase 2 was selected as the first major design-build project for Kansas.
- February 2011
Final Concept Study completed and provided a phasing recommendation to make $500-$600 million in improvements to the I-435/I-35/K-10 Interchange.
- March 2012
KDOT selected HNTB to serve as its Project Manager Consultant (PMC) to assist KDOT in developing the Phase 2 project procurement documents for selection of the design-build team.
- June 2012
Phase 1: Construction on Phase 1 of the Johnson County Gateway Improvements began. An additional lane was added on I-35 from 119th Street to I-435.
- December 2012
Phase 1: Construction of Phase 1 is substantially completed. KDOT held an Industry Workshop to introduce the Phase 2 design-build project to industry representatives and interested contractors.
- January – March 2013
Phase 2: Public input gathered through focus groups, online surveys, workshops and presentations to stakeholder groups.
- March 2013
Phase 2: Request For Qualifications (RFQ) was released. The RFQ was used to solicit responses from qualified design-build teams.
- May 2013
Phase 2: Draft Request For Proposals (RFP) is released to shortlisted teams. KDOT publishes shortlist of most qualified teams.
- December 2013
Phase 2: Proposals due from shortlisted teams.
- January 2014
Phase 2: KDOT selects Gateway Interchange Constructors as the design-build team to complete the project. Selection was announced on January 10, 2014.
- April 2014
Phase 2: KDOT, along with Governor Sam Brownback and officials from the cities of Lenexa, and Olathe and Johnson County, broke ground in Lenexa for Kansas' first design-build project.
- Spring 2014
Phase 2: Construction starts on Phase 2 of the Gateway Project.
- Summer 2015
The interchange improvements at K-10 and Ridgeview Road are completed in July 2015.
- Fall 2015
Eastbound I-435 and Lackman Road improvements are completed. Eastbound I-435 to Lackman Road opened in late October. Lackman Road to I-35 ramps opened in early November 2015. Lackman Road to eastbound I-435 opened in mid-November.
- February 2016
On February 21, 2016, the 95th and I-35 Interchange CLOSED for six months for reconstruction. The interchange will be rebuilt as a Diverging Diamond Interchange.
- August 2016
As of August 17, 2016, the 95th and I-35 Diverging Diamond Interchange opened to all traffic. Construction was completed on the bridge and the associated side roads of Lenexa Drive and Marshall Drive to improve access and traffic flow.
- November 2016
November 11, 2016 - Westbound I-435 collector-distributor Road and Lackman entrance and exit ramps reopened to traffic. November 29, 2016 - Ribbon Cutting held to celebrate substantial completion!
- December 2016
Phase 2: December 12, 2016 - All lanes open to traffic! December 31, 2016 - All substantial construction on Phase 2 of the Gateway Project should be complete.