Transportation
N.C. 150 Widening Improvements – R-2307B/I-5717
N.C. 150 R-2307B corridor
Verified Project Information
Summary
NCDOT is widening approximately 6.9 miles of N.C. 150 from Greenwood Road in Catawba County to U.S. 21 in Mooresville, Iredell County. The active construction package includes a wider N.C. 150, a reconfigured I-77 interchange, a new Lake Norman bridge, and intersection improvements.
Current stage: Under construction.
Current condition: Active.
Key Facts
Estimated Cost
No overall project cost is published.
Latest Progress
2025-07-07: NCDOT announced permanent lane shifts and nightly closures on I-77 to begin construction of the new bridge at the N.C. 150 interchange. The phased work is designed to retain two travel lanes in each direction during construction.
Project Leaders
North Carolina Department of Transportation
Project owner, Project planner, Project sponsor
Project Funding
Funding type: Public · Status: Allocated
North Carolina Department of Transportation: $249.37 million (2024)
Timeline
I-77 bridge construction traffic phase begins
NCDOT announced permanent lane shifts and nightly closures on I-77 to begin construction of the new bridge at the N.C. 150 interchange. The phased work is designed to retain two travel lanes in each direction during construction.
Stage after event: Under constructionConstruction begins on N.C. 150 widening
NCDOT announced that Blythe Development was preparing to begin work on the six-mile construction section between Greenwood Road and U.S. 21, including widening, bridge, intersection, signal, and drainage improvements.
Stage after event: Under constructionNCDOT lets the R-2307B construction contract
NCDOT's letting record lists a 6.943-mile project from Greenwood Road to U.S. 21, with Blythe Development LLC as apparent low bidder at $249,369,373.21. The contract included an interim completion date in November 2029 and final completion in May 2030.
Stage after event: Contract awardedFinding of No Significant Impact approved
State and federal agencies approved the project's Finding of No Significant Impact. NCDOT later identified an alternative that widened the corridor while routing around the Terrell Historic District.
Stage after event: Preliminary design or environmental reviewTraffic forecast identifies capacity pressure
NCDOT's traffic forecast found N.C. 150 volumes exceeded two-lane capacity in the commercial district near I-77 and projected additional capacity pressure west of Sherrills Ford Road.
Stage after event: Preliminary design or environmental reviewNCDOT documents corridor safety concerns
NCDOT's safety analysis found crash rates on the 15-mile N.C. 150 corridor exceeded statewide or critical rates in several categories and identified a divided roadway with a raised median as a potential safety improvement.
Stage after event: Planning or feasibility
Geography
Project site / location
- Lake Norman of Catawba, NC
- Lake Norman of Iredell, NC
- Mooresville, NC
- Catawba County, NC
- Iredell County, NC
Affected / impact geography
- Lake Norman of Catawba, NC
- Lake Norman of Iredell, NC
- Mooresville, NC
- Catawba County, NC
- Iredell County, NC
Map
ExactApproximate
Solid geometry is exact. Dotted geometry and dotted-outline markers are approximate. Multiple markers may show independently verified locations; they are not connected and do not establish a route or alignment.
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Government Sources
- Primary
- North Carolina Department of TransportationLane Closures Scheduled for I-77 in Mooresville2025-07-07Primary
- Primary
- Supporting
- Primary
- Primary
- North Carolina Department of TransportationContract Awarded to Improve N.C. 150 in Two Counties2024-11-07Government press release
Media Coverage
The Construction Broadsheet · 2024-11-07
NCDOT awards Blythe $249M highway widening project, other contracts (opens original source in a new tab)
The Construction Broadsheet reports NCDOT's award to Blythe Development, the planned lane widening and a spring 2030 completion schedule.