Omaha, NE Fence Regulations: Retaining Walls (2026)
Key Facts
- Max unprotected slope
- 2.5 horizontal to 1 vertical
- Engineer trigger
- steeper slopes over 6 ft rise
- Engineer must be
- Nebraska-registered
- Toe-of-slope setback
- 1/2 slope height, max 20 ft
Summary
Omaha bars grading a slope steeper than 2.5-to-1 unless a Nebraska-registered engineer designs the retaining wall holding it back, with a narrow exception for short slopes.
It shall be unlawful to make an excavation or fill which causes a ground slope of more than 2.5 horizontal to one vertical. ... Exceptions ... Slopes whose faces are protected by retaining walls or other systems which are designed by an engineer registered in the State of Nebraska. ... Slopes whose vertical elevation change is less than six feet.
Full Breakdown
City Code § 43-261 makes it unlawful to cut or fill land into a slope steeper than 2.5 horizontal to 1 vertical. The rule doesn't apply if the slope face is protected by a retaining wall (or comparable system) designed by an engineer registered in Nebraska, if the vertical rise is under six feet, if it's part of an already-permitted active construction project, or if it's a temporary surcharge pile. Sec. 43-262 adds setback minimums keeping cut and fill slopes off neighboring property lines. A code official who finds a violation must give the owner written notice to fix it under Sec. 43-263.
Violations & Fines
No set fine listed for this specific section; Sec. 1-10's general penalty applies (up to $500 fine and/or up to 6 months in jail), and each day the unsafe slope stands is a separate offense.
Frequently Asked Questions
Do I need an engineer for a short retaining wall in Omaha?
What triggers engineering review for an Omaha retaining wall?
Sources & Official References
Other rules in Omaha
Compare Omaha to another location·View the Nebraska fence regulations overview
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