North Carolina Dam Safety: Approvals, Inspections, and Penalties

North Carolina’s dam safety regulations, codified at N.C. Gen. Stat. 143-215.23 through 143-215.36, require most dam owners to get state approval before building, repairing, altering, or removing a dam, to have the work designed and supervised by a licensed professional engineer, to maintain the structure to standards set by the Environmental Management Commission, and to keep an approved Emergency Action Plan on file if the dam is classified high or intermediate hazard.¹ The Dam Safety Program within the Department of Environmental Quality (DEQ) administers the law and can inspect any regulated dam at any time.²

Is Your Dam Regulated

Not every dam in the state falls under DEQ oversight. The statute exempts several categories, and the size cutoffs are more nuanced than a single height limit.³

The broadest exemption covers dams that are either less than 25 feet tall or impound less than 50 acre-feet of water, unless the DEQ determines that failure could cause loss of life or significant property damage downstream. A narrower exemption applies to dams under 20 feet tall or impounding less than 15 acre-feet, but only when a qualified engineer performs failure analyses and confirms the dam is not high hazard.

Other categories are exempt regardless of size:

Federal dams built by the Army Corps of Engineers, TVA, or another federal agency that designed, approved, and supervised construction. The exemption ends if the federal agency transfers responsibility to a local entity.
Dams built with Natural Resources Conservation Service assistance under the same design-and-supervision conditions.
Dams licensed by, or with a pending application before, the Federal Energy Regulatory Commission.
Dams for electric generating facilities regulated by the Nuclear Regulatory Commission.
A single-owner private dam that protects only that owner’s land and threatens no life or property below.
Agricultural dams designed or approved by a licensed engineer or qualifying official, supervised during construction, and registered with DEMLR before construction begins. The exemption disappears if the DEQ later classifies the dam as high hazard.

If your dam doesn’t clearly fit an exemption, treat it as regulated. Even an exempt dam can be pulled into the program if downstream conditions make it dangerous.

Hazard Classification

Every regulated dam receives one of three hazard classifications based on what would happen if it failed, not on its current structural condition. The administrative code at 15A NCAC 02K .0105 sets the definitions:⁴

Class C (high hazard): Failure would likely cause loss of life or serious damage to homes, commercial and industrial buildings, important public utilities, primary highways, or major railroads.
Class B (intermediate hazard): Failure could damage highways, secondary railroads, or isolated homes, or interrupt public utilities. Damage counts as “minor” only if the structure sits in a backwater area outside the direct breach flood wave and would experience no more than 1.5 feet of flood rise above the lowest adjacent ground elevation or the lowest floor, whichever is lower.
Class A (low hazard): Failure may damage uninhabited, low-value non-residential buildings, agricultural land, or low-volume roads.

Classification drives inspection frequency, emergency planning duties, and design standards, so it is worth watching over time. A classification can change when downstream conditions change. New housing, commercial construction, or road upgrades below a dam can push it from Class A to Class B or even Class C, and a reclassification to high hazard can trigger expensive spillway upgrades and new emergency planning requirements that did not previously apply.

Approvals for Construction, Repair, Alteration, and Removal

You cannot start building a dam in North Carolina until at least 10 days after filing a statement with the DEQ describing the dam’s height, impoundment capacity, purpose, location, and other required details. If the DEQ decides the dam is not exempt, construction must stop until you file a full application and receive approval.⁵ Every applicant for a non-exempt dam must file a certificate from a North Carolina-licensed professional engineer stating that the engineer is responsible for the design and that the design is safe and adequate.

The DEQ routes completed applications to the State Health Director, the Wildlife Resources Commission, the Department of Transportation, and other agencies as appropriate. That interagency review takes time, so build it into your schedule.

Repairing, altering, or removing a dam also requires prior written approval, with detailed plans, maps, and specifications.⁶ Emergency repairs to protect life and property are the exception; you can start immediately, but you must notify the DEQ within 24 hours.

Design and construction must be supervised by a licensed professional engineer. If the DEQ finds during construction that work is deviating from approved plans, it can order an immediate halt, and continued noncompliance can result in revocation of approval.⁷

Dams that involve filling or dredging in waters of the United States may also need a federal Section 404 permit from the Army Corps of Engineers under the Clean Water Act.⁸

Application Fees

North Carolina charges a nonrefundable processing and compliance fee equal to 2.25 percent of the actual cost of construction, repair, alteration, breach, or removal. The fee is paid in two parts, and the total is capped at $50,000:⁹

An initial payment of $500 or one-half of the estimated processing fee (based on the engineer’s cost estimate), whichever is greater, submitted with the application.
A final payment covering the remainder based on actual construction cost, due when as-built plans are submitted.

Actual cost includes labor and materials for the dam itself. It does not include land acquisition, right-of-way costs, design fees, quality control, electrical generating machinery, or roadway construction across the dam. Before the DEQ grants final approval to impound water or approves a breach, the owner must submit an Owner’s Cost Certification form with the as-built plans and the engineer’s certification of completion.

Inspections and Maintenance

The DEQ inspects Class C dams at least every two years and Class A and Class B dams at least every five years, and it can inspect any dam at any time on request from an affected person or agency or on the Commission’s own motion.² If an inspection finds the dam is not strong enough, not properly maintained, dangerous, or failing minimum streamflow requirements, the DEQ presents its findings to the Environmental Management Commission for enforcement action.

Between inspections, owners are responsible for routine maintenance, prompt correction of deficiencies, and records of structural modifications and operational changes.¹⁰ Significant repairs cannot be handed to unlicensed contractors; the engineer supervision rule applies to any regulated work.

When ownership changes hands, the new owner inherits the full compliance history, including any outstanding deficiencies or unresolved DEQ orders. Anyone considering buying property with a dam on it should request the dam’s inspection and compliance file from the DEQ before closing.

Emergency Action Plans

Owners of high-hazard and intermediate-hazard dams must develop an Emergency Action Plan and submit it to both the DEQ and the Department of Public Safety within 90 days of the dam receiving its classification. Both agencies must approve the plan before it takes effect.¹⁰

Each plan must include, at minimum:

A description of potential emergency conditions at the dam, including security risks.
Actions to take in response to each scenario.
Notification procedures supporting warnings and evacuations.
A downstream inundation map showing areas affected by a dam failure and sudden release of the impoundment.

The plan must be updated annually and resubmitted for approval within one year of the prior approval. The DEQ distributes copies to its regional offices, and the Department of Public Safety distributes them to local emergency management agencies. Failing to keep a current, approved plan on file is itself grounds for enforcement.

Streamlined Path for Some Dam Removals

Removing a dam generally follows the same application and approval process as any other alteration. There is a shorter path for what the statute calls “professionally supervised dam removal,” available for low or intermediate hazard mill dams and run-of-river dams that are not primarily used for flood control or hydroelectric power.⁶

To qualify, all of the following must be true:

A qualified engineer determines the removal can be done safely, certifies the dam is low or intermediate hazard, and designs a removal plan that accounts for streambed conditions upstream and downstream and the most desirable post-removal channel profile.
The owner notifies the DEMLR director at least 60 days before removal, providing dam identification details, the engineer’s name and license number, and a notarized certification that the dam is low or intermediate hazard and not used for flood control or hydroelectric generation.
The owner notifies the North Carolina Floodplain Mapping Program.

If the removal involves fill or dredging in waters of the United States, a separate federal authorization may be needed. Nationwide Permit 53 has historically covered removal of certain low-head dams, though its authorization period expired on March 14, 2026, so check with the applicable Corps district office for current requirements.¹¹

Penalties and Liability

Violating the Dam Safety Law is a Class 3 misdemeanor with a fine of $100 to $1,000 per violation. If the violation is willful, each day it continues can be treated as a separate offense, so penalties compound quickly.¹²

Beyond criminal penalties, the statute preserves all common-law liability. Nothing in the Dam Safety Law relieves an owner or operator from the duties and liabilities that come with owning a dam.¹³ If your dam fails and damages downstream property or injures someone, you face civil liability even if you complied with every DEQ regulation. Compliance is not a shield against a negligence claim.

The DEQ can also issue corrective orders. If an owner refuses to act on an unsafe dam, the state can make the repairs itself and pursue the owner for reimbursement.

Federal Funding for High-Hazard Rehabilitation

Rehabilitating a high-hazard dam is expensive, and two federal programs can help.

FEMA High Hazard Potential Dam Grant Program

The FEMA HHPD Grant Program provides technical, planning, design, and construction assistance for rehabilitating eligible high-hazard dams. Only states with authorized dam safety programs can apply as the primary applicant, so North Carolina’s Dam Safety Program submits applications on behalf of eligible subrecipients.¹⁴ Eligible subrecipients include non-federal government organizations and nonprofits described under Section 501(c)(3) of the Internal Revenue Code. Private individuals and for-profit companies cannot receive funding directly.

One eligibility trap: the dam must sit in a jurisdiction with a FEMA-approved hazard mitigation plan that specifically covers dam risk. If the local plan does not, the applicant can request a 12-month extension under the program’s Extraordinary Circumstances provision, but the project is not fundable without that coverage in place.

USDA Watershed Rehabilitation Program

The Natural Resources Conservation Service runs the Watershed Rehabilitation Program, which provides technical and financial assistance to local project sponsors for rehabilitating aging dams originally built through federally assisted watershed projects.¹⁵ The program is aimed at community sponsors rather than individual private owners. Sponsors submit funding requests to NRCS and, if approved, enter an agreement defining roles, costs, benefits, and conservation practices in a watershed plan.

1
North Carolina General Assembly. North Carolina Code 143-215.23 – Short Title
2
North Carolina General Assembly. North Carolina Code 143-215.32 – Inspection of Dams
3
North Carolina General Assembly. North Carolina Code 143-215.25A – Exempt Dams
4
North Carolina Department of Environmental Quality. Hazard Classification Criteria – 15A NCAC 2K .0105
5
North Carolina General Assembly. North Carolina Code 143-215.26 – Construction of Dams
6
North Carolina General Assembly. North Carolina Code 143-215.27 – Repair, Alteration, or Removal of Dam
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North Carolina General Assembly. North Carolina Code 143-215.29 – Supervision by Qualified Engineers
8
U.S. Environmental Protection Agency. Permit Program under CWA Section 404
9
North Carolina Department of Environmental Quality. Dam Safety Applications and Fees
10
North Carolina General Assembly. North Carolina Code 143-215.31 – Supervision Over Maintenance and Operation of Dams
11
US Army Corps of Engineers. Nationwide Permit 53 – Removal of Low-Head Dams
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North Carolina General Assembly. North Carolina Code 143-215.36 – Enforcement Procedures, Penalties
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North Carolina General Assembly. North Carolina Code 143-215.35 – Liability for Damages
14
FEMA.gov. Who Can Apply for the High Hazard Potential Dam Grant Program
15
Natural Resources Conservation Service. Watershed Rehabilitation Program