Project Overview and Purpose
Planning and design is underway for two proposed projects that would improve traffic flow and reduce congestion on N.C. 150 – from the N.C. 16 Bypass in Catawba County to just west of the U.S. 21/N.C. 150 interchange in Mooresville, in Iredell County.
The first project will widen a 15-mile two-lane stretch of N.C. 150 – from the N.C. 16 Bypass in Catawba County to just west of the U.S. 21/N.C. 150 interchange in Iredell County – to a multilane highway.
The second project involves improvements to the I-77/N.C. 150 interchange in Mooresville.
N.C. 150 Widening
Work to widen N.C. 150 – from the N.C. 16 Bypass in Catawba County to just west of the U.S. 21/N.C. 150 interchange in Iredell County – would be divided into two sections:
- Section A will widen N.C. 150 in Catawba County.
- Section B will widen N.C. 150 in Iredell County as well as improving the intersection at Williamson and Bluefield roads in Mooresville.
Following state and federal agencies reviewing the proposed project and evaluating its potential effects on the Terrell Historic District, the N.C. Department of Transportation project team selected a design option, referred to in the Environmental Assessment as Alternative 2, that would widen N.C. 150 in Catawba County and also incorporate a northern bypass around the historic district, which is protected under federal law. Another design option that was studied – Alternative 1 – would have widened N.C. 150, but would have had adverse effects on the historic district.
In addition to widening N.C. 150 in Iredell County, NCDOT also proposes building a "continuous flow intersection" in Mooresville, at the intersection of Williamson and Bluefield roads. In a continuous flow intersection, vehicles turning left cross opposing lanes of traffic at a signal-controlled crossover, before reaching the intersection.
I-77/N.C. 150 Interchange Improvements
Improvements to the I-77/N.C. 150 interchange in Mooresville would reconfigure the interchange by adding lanes to N.C. 150 and to the existing on- and off-ramps, as well as building overpass bridges.
The N.C. 150 widening project is listed as two separate projects in the 2016-2025 State Transportation Improvement Program, the N.C. Department of Transportation's plan that identifies funding and scheduling for transportation projects over a 10-year period.
The first project, which widens N.C. 150 in Catawba and Iredell counties, is identified in the plan as R-2307. Work on this project would be completed in two sections:
- Section A, which widens N.C. 150 in Catawba County, is funded for project development and study. Right-of-way acquisition and construction, however, are not currently funded.
- Section B, which widens N.C. 150 in Iredell County, is funded for project development and study as well as right of way acquisition and construction.
The second project, improvements to the I-77/N.C. 150 interchange in Mooresville, is identified in the State Transportation Improvement Program as I-5715, and is currently funded for project development and study, as well as right of way acquisition and construction.
A traffic safety analysis by the NCDOT's Safety Planning Group in June 2011 found that crash rates on the 15-mile stretch of N.C. 150 exceed the statewide crash rates in the total non-fatal injury and wet-condition categories and exceed critical crash rates in the total and non-fatal injury categories.
A report on the traffic safety analysis concluded that a divided roadway with a raised median "should potentially reduce frontal impact crashes along the corridor." The median also acts as an area where drivers can slow and attempt to regain control of their vehicles, and is an important safety feature of a high-volume or high-speed roadway. The report also recommended that a driveway access review be conducted to determine if driveways can be closed or combined to reduce conflict points.
A traffic forecast completed in September 2013 found that:
- N.C. 150 traffic volumes exceeded two-lane capacity between Sherrill's Ford Road and the I-77 Interchange commercial district
- N.C. 150 traffic volumes west of Sherrill's Ford Road are projected to exceed capacity between 2015 and 2020
- The projected length of N.C. 150 will exceed two-lane capacity by 2035
NCDOT collected public feedback on the proposed project's Environmental Assessment and build alternatives during a public comment period that ended Sept. 23, 2016. In addition, there were two public meetings – one in Maiden on Aug. 22, 2016, and another in Mooresville on Aug. 23, 2016.
All comments – regardless of how they are submitted – carried equal weight and were taken into consideration, during the conclusion of the project development process.
The maps and materials available at the meeting are available on this page under Project Documents.
|Environmental Assessment approved
|Finding of No Significant Impact issued
||Late spring 2017
|Right of way acquisition begins
|Construction contracts awarded
* Future dates are preliminary and subject to change
*Alternatives 1 and 2 are identical except in Map 3, which runs through the Terrell Historic District.
Karen S. Reynolds
Project Planning Engineer
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1548 Mail Service Center
Raleigh, NC 27699-1548
Bryan C. Key, P.E.
Roadway Design Engineer
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1582 Mail Service Center
Raleigh, NC 27699-1582
Larry Carpenter Jr., P.E.
Division Construction Engineer
Highway Division 12
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P.O. Box 47
Shelby, NC 28151-0047
Resources for Local Property Owners
In many cases, it is inevitable that a certain amount of private property must be acquired. The displacement of homes and businesses is minimized to the extent practicable. The following brochures will answer questions about this process.