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🌍 Environmental Rules/Grading & Drainage

Carrollton vs Dallas

How do grading & drainage rules compare between Carrollton, TX and Dallas, TX?

Carrollton has fewer restrictions than Dallas.

Carrollton, TX

Dallas County

Some Restrictions

Carrollton requires grading permits for significant earth-moving work. Drainage must not redirect water onto neighboring properties. Proper grading prevents erosion and flooding.

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Dallas, TX

Dallas County

Heavy Restrictions

Dallas Development Code Sec. 51A-8.611 sets comprehensive requirements for grading and drainage. All storm drainage facilities must be designed to safely convey a 1% annual chance storm event per the Dallas Drainage Design Manual. Erosion control plans are required for any grading or clearing activity. Financial assurance is required for grading improvements. The city requires that development not increase stormwater runoff onto adjacent properties without proper management.

View full Dallas rules β†’

Key Facts Comparison

FactCarrolltonDallas
Permit Threshold50 to 100 cubic yards-
Neighbor DrainageCannot redirect water-
Retaining WallsPermit if over 4 feet-
TopicGrading Drainage-
Code Section-Sec. 51A-8.611 (Storm Drainage Design)
Design Standard-1% annual chance storm capacity
Manual-Dallas Drainage Design Manual
Financial Assurance-Required for grading improvements
Adjacent Property-No increased runoff without management

Highlighted rows indicate differences between cities.

Carrollton FAQ

Do I need a grading permit?

Generally required for earth-moving over 50 to 100 cubic yards or changes to existing drainage patterns. Small landscaping projects are usually exempt.

My neighbor changed their grading and water flows onto my property. What can I do?

Contact Carrollton code enforcement. Redirecting drainage onto neighboring properties violates most municipal codes. The neighbor may be required to restore proper drainage.

Dallas FAQ

What drainage standard does Dallas require?

All storm drainage facilities must safely convey a 1% annual chance (100-year) storm event per the Dallas Drainage Design Manual under Sec. 51A-8.611.

Can my development increase runoff to neighboring properties?

Dallas requires that development manage stormwater so as not to increase runoff onto adjacent properties without proper drainage infrastructure.

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