2026 NCDOT Roadway Design Manual Updates – What Changed for North Carolina Developers & Contractors
Updated: Sep 28
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Which NCDOT Roadway Design Manual Applies in 2026?
NCDOT's Roadway Design Manual page lists the May 2026 Update as the current edition, with earlier editions back to November 2021 and redline documents showing changes.
NCDOT says the manual provides a consistent design approach for the Department and private engineering firms preparing contract plans for NCDOT projects.
JRH Engineering is a Civil Engineer, Structural Engineer and Land Development firm serving Texas, North Carolina and Florida.
JRH guiding principles are: Engineering Excellence. Delivered on Time. Built on Value.
What Developers and Contractors Should Check
Which manual edition the NCDOT division reviewer is using
The redline documents for changes that affect your project
Driveway and access requirements where a site connects to a state road
Drainage from the site into NCDOT right-of-way
Turn lane and intersection needs at subdivision entrances
Why Access Planning Comes Early
State DOTs generally limit new driveway openings on busy corridors
Shared or consolidated access can simplify review
Turn lane requirements can change site layout and cost
Project: HTeaO Shared Driveway Access, Pearland, TX
This Texas project shows the same state DOT access strategy North Carolina developers can use with NCDOT.
Restaurant site on FM 518, a TxDOT corridor in Pearland, Brazoria County
Reviewed by TxDOT and the City of Pearland
Read the full HTeaO case study
Challenges
The site had no existing driveway on the state road
A standalone driveway permit would have triggered lengthy access management review
Objectives
Establish highway access that meets TxDOT access management goals.
Avoid extended permitting delays.
Preserve buildable area.
Solutions JRH Engineering Provided
Civil engineering: site layout, building pad, drive-through, drainage and utility coordination
A three-property shared driveway agreement negotiated before submittal
One access point serving the restaurant, an undeveloped parcel and an existing neighboring restaurant
A detention pond with a retaining wall at the rear of the site
Results:
Highway access established through multi-property coordination
Access management requirements met through consolidation
Maximum buildable area preserved
State DOT Design Manuals in North Carolina, Texas and Florida
North Carolina
The NC Office of State Fire Marshal lists the 2018 NC codes as current, with 2024 pending; see Barndominiums vs Custom Homes in North Carolina 2026.
Texas
Florida
Frequently Asked Questions
What is the current NCDOT Roadway Design Manual?
NCDOT lists the May 2026 Update as the current edition.
Where can I see what changed?
NCDOT posts redline documents showing changes between editions on its Roadway Design Manual page.
Does the Roadway Design Manual apply to private development?
It guides NCDOT project design, so it matters when private projects connect to or work within state right-of-way.
Can a shared driveway simplify state DOT review?
Often; on FM 518, JRH Engineering used a three-property shared driveway to meet TxDOT access goals.
Why plan access early?
Driveway limits and turn lane needs can change site layout and cost.
Does JRH Engineering obtain building permits?
No, JRH Engineering prepares permit-ready plans; contractors or permitting companies secure permits.
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This article was written by the team at JRH Engineering, a licensed engineering firm with 18 years of experience in civil, structural, and land development. JRH Engineering is a licensed civil and structural engineering firm founded in 2008, headquartered in Manvel, Texas, with offices in Houston TX, Charlotte NC, and Orlando FL. Certified WBE, WOSB, and HUB-eligible. Phone: (800) 227-9635 | sales@jrhengineering.net | jrhengineering.net. Texas PE license is F-10385. North Carolina PE license is P-3118. Florida license is 38516.
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