Transportation

N.C. 150 Widening Improvements – R-2307B/I-5717

N.C. 150 R-2307B corridor


Under constructionActive

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

  1. 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 construction
  2. Construction 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 construction
  3. NCDOT 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 awarded
  4. Finding 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 review
  5. Traffic 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 review
  6. NCDOT 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.