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The City of Lawrence put out a release announcing the start of the construction of the SLT/6th Street interchange

--- Quote from: City of Lawrence ---
KDOT project to begin in Lawrence today
Announced by the Kansas Department of Transportation (KDOT) last week, a KDOT project at the interchange of U.S. 40 (6th Street) and K-10 in Lawrence is scheduled to begin on Monday, July 24, weather permitting.

The project will reconfigure the current interchange to a diverging diamond interchange (DDI) and add a sidewalk with barriers for pedestrian protection down the center of the bridge. Phases I and II of the project will primarily take place west of the interchange, along U.S. 40 and East 900 Road. The current East 900 Road intersection tie-ins will close to allow room for the new interchange configuration. The north intersection of East 900 Road will be relocated to the west of its current location. The southern intersection tie-in will be permanently closed, and a cul-de-sac will be constructed for local traffic.

This work will require U.S. 40 to temporarily close later this summer for approximately 100 days. Phase III is expected to occur in the 2024 summer months and will require a complete closure of the interchange when U.S. 40 and the K-10 ramps are reconfigured to create the diverging diamond layout. Motorists will be notified, and traffic information will be provided prior to the closures.

Work will take place Monday through Friday, and Saturdays as needed, during daylight hours and is expected to be complete by the end of 2024.

To stay aware of highway construction projects across Kansas, go to or call 5-1-1.

--- End quote ---

The official US 40 detour during the closure of 6th Street is K-10 and the Turnpike.

Saw this update about the Pittsburg Bypass on the KDOT site today.

--- Quote ---KDOT stopping work on U.S. 69 Crawford County Corridor western alignment; starting new corridor study later this year

In response to feedback from communities and residents along U.S. 69 in Crawford County, the Kansas Department of Transportation (KDOT) is stopping any further progress on developing the western alignment of the Crawford County Corridor (also known as the Pittsburg Bypass). This includes stopping design work and planned construction of the U.S. 160 improvements (Phase 3) of the Crawford County Corridor. That project would have extended U.S. 160 to the west along 590th Avenue.

Discussions about improving the U.S. 69 corridor have been happening for decades. The project would expand an 18-mile corridor of U.S. 69 to a four-lane freeway, starting at the Cherokee-Crawford county line and continuing north of the City of Arma.

Over time, KDOT has done preliminary engineering and environmental reviews, working with cities and counties along the U.S. 69 corridor. The last study on the project was completed in 2012, and at that time, the western alignment was presented as the preferred alternative. While there have been ongoing conversations through KDOT’s Local Consult process and individual project meetings, until this spring, KDOT had not had a dedicated conversation with communities along the corridor about the project in more than 10 years.

In May, more than 350 people attended city council and county commission meetings where KDOT presented about the U.S. 69 Crawford County Corridor. The overwhelming
majority of people KDOT heard from were opposed to the western alignment of the U.S. Crawford County Corridor. The most common reasons included:
- The cost of the project relative to its benefit to the community;
- The last study was completed in 2012, and there have been significant changes in
development since that time;
- Impacts to homes; and
- The potential impact of a new bypass on towns and existing businesses in the area.

“We heard loud and clear the U.S. 69 corridor is a top priority for southeast Kansas,”  said Greg Schieber, KDOT State Transportation Engineer. “We also heard things have changed since decisions were made more than a decade ago, and we need to step back and work with communities to find the right solution for the future of U.S. 69. Infrastructure improvements are expensive, and we want to invest in projects that not only improve the state highway system, but also align with the needs and visions of Kansas communities.”

Later this year, KDOT will start a new corridor study to re-evaluate the current highway and identify the current and future needs of the communities along U.S. 69 in Crawford County. The study will include an updated traffic and safety analysis to help determine viable options to improve the Crawford County Corridor.

To help inform the study, KDOT will establish a stakeholder group composed of representatives of the cities, county, and businesses along the corridor to hear a variety of perspectives on the priorities in the region. The study will include a robust public outreach effort and multiple opportunities for public input. It will take 12-18 months to complete the new study.

At this year’s Local Consult meetings in October, KDOT will not list a specific U.S. 69 Crawford County Corridor project for discussion. At the last two rounds of Local Consult, KDOT heard from southeast Kansans that improvements to U.S. 69 in Crawford County are a priority. KDOT is actively taking steps, like this new corridor study, to address that priority. The study needs to be done so that KDOT can have projects for consideration at the next round of Local Consult meetings in 2025.

As more information about the study schedule and opportunities for input are available, KDOT will post information online at:

--- End quote ---


--- Quote from: mvak36 on August 11, 2023, 01:50:33 PM ---Saw this update about the Pittsburg Bypass on the KDOT site today.

--- Quote ---KDOT stopping work on U.S. 69 Crawford County Corridor western alignment; starting new corridor study later this year

--- End quote ---

--- End quote ---

So another 10+ years until they turn dirt.


--- Quote ---As Kansas’ first-ever express toll lanes are under construction on U.S. 69 in Overland Park, the state is now considering adding more to ease congestion on another highway in Johnson County: Kansas 10.

The Kansas Department of Transportation is studying how to address traffic and safety issues on the 17-mile stretch from the interchange with Interstates 435 and 35 in Lenexa, west through Olathe and De Soto to the Douglas County line. And officials said one option could be widening the highway with one express toll lane in each direction. The other lanes would remain free.


As western Johnson County continues to grow, with major projects such as the development of the $4 billion Panasonic plant in De Soto, the state has prioritized improving K-10. Officials have been analyzing solutions since last fall.


The state wants to decide how to expand the highway by next spring.

KDOT is completing a study to explore widening K‑10 to three lanes in each direction, with express toll lanes, from Cedar Creek Parkway to I‑435.


Cross said complete reconstruction of the 17-mile highway is estimated to cost $1.6 billion. But that work would be constructed in phases over time, as needed.

--- End quote ---

Project Website:

The Ghostbuster:
So, this study is about pre-existing easternmost freeway segment of K-10, not the portion between Interstate 70 and US 59 that is planned to be converted into a four-lane freeway. I wouldn't be surprised if, in the distant future, the toll lanes eventually continue west of the County 442/N. 1400 Rd. interchange.


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