Stormwater Engineering in NC Just Got More Complex — Here's Why
Updated: 7 days ago
Why Choose JRH Engineering
Why Developers, Contractors & Property Owners Choose JRH
Most engineering firms talk about technical capability.
We focus on what actually matters to your project: speed, cost, communication, and results.
Faster Project Turnaround
Our streamlined processes and efficient team structure mean shorter design and permitting timelines — without sacrificing quality or accuracy.
Clear & Responsive Communication
You work directly with engineers who keep you informed. No long delays or unanswered emails — just straightforward updates and quick responses.
Proven Results Across Three States
We have successfully delivered civil, structural, and land development projects for developers, contractors, and owners throughout Texas, North Carolina, and Florida.
Check out JRH’s case studies.
Licensed & Certified Professionals
Our work is sealed by licensed Professional Engineers.
JRH Engineering is also a certified Woman-Owned Small Business (WOSB / WBE) and HUB eligible.
Why NC Stormwater Engineering Is Getting More Attention
North Carolina’s fast-growing counties are adding homes, warehouses and commercial sites, and reviewers are looking more closely at how each project handles stormwater.
Construction permit coverage, local drainage ordinances and post-construction rules all have to line up before work begins.
Getting the stormwater design right early keeps a project on schedule.
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.
Construction Stormwater Permit Coverage
Erosion control plan: land disturbance of more than 1 acre needs an approved erosion and sedimentation control plan under G.S. 113A-57, filed at least 30 days before work begins
NCG01 coverage: the current construction stormwater general permit, NCG010000, took effect April 1, 2024 and applies to projects disturbing 1 acre or more
Electronic NOI: after the erosion control plan is approved, the financially responsible party submits the eNOI through NCDEQ’s AccessDEQ portal; a consultant cannot sign it
Response time: NCDEQ’s Division of Energy, Mineral and Land Resources responds within 3 business days
Post-Construction Stormwater
NCDEQ’s Stormwater Design Manual follows the state’s post-construction rules in 15A NCAC 02H .1000
Cities and counties add their own drainage and detention pond criteria
Watershed and coastal areas can carry additional water quality and buffer requirements
Lessons from Hurricane Helene
Hurricane Helene caused major flooding in western North Carolina in 2024 and led to federal disaster declaration DR-4827.
The storm put new focus on drainage resilience, especially in mountain and flood-prone areas.
What This Means for Your NC Project
Confirm whether your site disturbs more than 1 acre.
Submit the erosion control plan early.
Design detention pond and drainage systems before layout is final.
Check watershed, buffer and local ordinance requirements.
Use an NC-licensed engineer; final drawings must be sealed under G.S. 89C-16.
Project: Flood Zone Duplex, Charlotte, NC
New duplex on a FEMA flood zone lot in Charlotte, Mecklenburg County
An existing flood permit required the driveway and building pad about four feet above existing grade
Challenges
Charlotte’s stormwater ordinance, FEMA rules and the flood permit all applied
Four feet of fill had to drain without affecting neighbors
Objectives
Meet the flood permit’s elevation conditions.
Satisfy Charlotte and Mecklenburg County drainage criteria.
Solutions JRH Engineering Provided
Civil engineering grading design with four-foot fill
A drainage plan directing stormwater to compliant outfall conditions
Results:
Flood permit elevation conditions satisfied
Stormwater managed without adverse impacts to adjacent properties
Stormwater Resources for North Carolina, Texas and Florida
North Carolina
Texas
Florida
See FDEP’s Environmental Resource Permit program.
Frequently Asked Questions
When is NCG01 coverage needed?
For construction projects disturbing 1 acre or more.
Who submits the NCG01 eNOI?
The financially responsible party, through AccessDEQ after the erosion control plan is approved.
When must the erosion control plan be filed?
At least 30 days before land disturbance of more than 1 acre begins.
Do NC engineering plans need a seal?
Yes, final drawings must be sealed by an NC-licensed engineer under G.S. 89C-16.
Do local governments add stormwater rules?
Yes, cities and counties often add drainage and detention pond criteria.
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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