US 380 Tracker
US 380 is the big east-west highway just north of Lowry Crossing. This tracker covers the Texas segments most relevant to us — roughly McKinney through Princeton — including the widening project, the proposed bypass, and connecting projects like Spur 399.
Get an alert whenever there's news on this project.
US 380 Widening (Airport Drive to CR 458)
TxDOT project widening US 380 from four to six lanes through the McKinney–Princeton area.
Where it stands
Crews are widening US 380 from four to six lanes. As of May 2026 the work was about 25% complete, with completion targeted for the end of 2028. Collin County contributed $11 million toward the project in December 2023.
Lead agency
TxDOT
Limits
Airport Drive → CR 458
Funding
Funded; under construction
Expected completion
End of 2028
What it means for Lowry Crossing
US 380 is the main east-west highway just north of Lowry Crossing. More lanes should ease daily congestion, but expect lane shifts and slowdowns through 2028.
Next milestone
Construction continues toward end-of-2028 completion
Key documents
Last verified: Sep 25, 2026
Timeline
US 380 widening about 25% complete, targeting end of 2028
By May 2026 the US 380 widening was roughly a quarter finished, with TxDOT targeting completion at the end of 2028. Drivers should expect continued lane shifts through the corridor.
Why it matters: This is the stretch of US 380 most Lowry Crossing residents drive; knowing the timeline helps set expectations for the daily commute.
Collin County commits $11 million to the US 380 widening
Collin County agreed to contribute $11 million toward widening US 380, helping move the project forward through the McKinney–Princeton corridor.
Why it matters: Local funding helps keep a state highway project on schedule — a signal the widening near Lowry Crossing was advancing.
US 380 Princeton Bypass
TxDOT plan for a new controlled-access freeway routing US 380 north around Princeton.
Where it stands
TxDOT plans a new limited-access freeway (ultimately up to eight lanes, about 11.8 miles) that would carry US 380 north of downtown Princeton. TxDOT issued its environmental clearance (a FONSI) on January 6, 2025 and began anticipating right-of-way in 2025. A construction letting is estimated around 2027, pending funding.
Lead agency
TxDOT
Limits
West of Princeton → East of Princeton
Length
About 11.8 miles
Funding
Not yet fully funded for construction
Expected completion
No date announced
What it means for Lowry Crossing
Routing through traffic north of Princeton could take pressure off the existing US 380 near Lowry Crossing over the long term, but this is a large, multi-year project still in the right-of-way stage.
Next milestone
Right-of-way acquisition; letting estimated ~2027
Key documents
Last verified: Sep 25, 2026
Timeline
TxDOT issues environmental clearance for the Princeton bypass
TxDOT issued a Finding of No Significant Impact (FONSI) on January 6, 2025, clearing the environmental step for a new US 380 freeway routed north of Princeton. Right-of-way work was anticipated to begin in 2025, with a construction letting estimated around 2027 pending funding.
Why it matters: Environmental clearance is a major milestone — it lets TxDOT start buying land, though a funded build date is still years away.
Spur 399 Extension
TxDOT project widening Spur 399 and extending it to US 380, with a planned FM 546 interchange.
Where it stands
Segment 1 widening has been under construction since June 2025 (built by Webber, about $157.4 million). A larger extension would carry Spur 399 as a freeway to US 380 with a planned interchange at FM 546. That extension is estimated at roughly $967–983 million and is not yet scheduled.
Lead agency
TxDOT
Limits
US 75 → US 380
Estimated cost
Extension about $967–983 million
Funding
Segment 1 funded; full extension not scheduled
Expected completion
No date announced
What it means for Lowry Crossing
A planned FM 546 interchange would connect Spur 399 directly to the road that runs through Lowry Crossing, which could reshape regional traffic for years to come.
Next milestone
Segment 1 construction continues
Key documents
Last verified: Sep 25, 2026
Timeline
Spur 399 Segment 1 widening begins construction
Construction on the first segment of the Spur 399 widening began in June 2025, built by Webber under a contract of about $157.4 million.
Why it matters: This is the first concrete step in a much larger plan that could eventually connect Spur 399 to US 380 with an interchange at FM 546.
A ~$1B plan would extend Spur 399 to US 380
TxDOT’s longer-range plan would extend Spur 399 as a freeway around McKinney to US 380, including a planned interchange at FM 546. The extension is estimated at close to $1 billion and is not yet scheduled.
Why it matters: A future FM 546 interchange would tie a major freeway directly to the road running through Lowry Crossing — worth watching even though it is years away.
US 380 at Beauchamp Boulevard
Intersection rebuild where US 380 meets Beauchamp Boulevard in Princeton.
Where it stands
Work to rebuild the US 380 and Beauchamp Boulevard intersection began October 5, 2025 and is expected to take about two and a half years.
Lead agency
City of Princeton / TxDOT
Limits
US 380 at Beauchamp Blvd → ?
Funding
Under construction
Expected completion
About 2.5 years (began Oct 2025)
What it means for Lowry Crossing
This is a nearby US 380 intersection Lowry Crossing drivers pass through toward Princeton; expect lane closures and delays during construction.
Next milestone
Construction continues
Key documents
Last verified: Sep 25, 2026
Timeline
Intersection rebuild begins at US 380 and Beauchamp Boulevard
Work to rebuild the US 380 and Beauchamp Boulevard intersection in Princeton began October 5, 2025 and is expected to take about two and a half years.
Why it matters: Lowry Crossing drivers heading into Princeton pass through this intersection, so expect closures and delays during the rebuild.
Each summary is written in our own words to make it easy to understand — always tap the source link to read the original notice or article. This is a community-run hub and is not operated by the City of Lowry Crossing.