Franklin County, FL Environmental Rules: Stormwater Management (2026)
Key Facts
- Governing standard
- F.A.C. Ch. 17-25 plus county regulations
- Plan required
- erosion and sediment control plan
- Watercourse easement width
- adequate to the watercourse
- Off-road easement minimum
- 15 feet, perpetual, unobstructed
- Enforcement tool
- plat approval withheld
Summary
New subdivisions in unincorporated Franklin County cannot be platted without an adequate stormwater management system. The county requires design under state stormwater rules, an erosion and sediment control plan, submitted runoff computations, and dedicated stormwater easements across any watercourse the subdivision crosses.
(1)Design. The stormwater management system shall be designed in accordance with Chapter 17-25, F.A.C., and applicable county regulations. The stormwater management system shall include an erosion and sediment control plan. Runoff computations shall be submitted along with the construction plans.(2)Stormwater easements.a.Where a subdivision is traversed by a watercourse, drainageway, channel, or stream, there shall be provided a stormwater easement conforming substantially to the lines of such watercourse, and of such width as will be adequate for the purpose.
Full Breakdown
5. Subsection (a) bars the commission from recommending approval of any plat that lacks adequate provision for stormwater management, erosion control and flood damage prevention. and applicable county regulations, to include an erosion and sediment control plan, and to come with runoff computations submitted alongside the construction plans. Where a subdivision is crossed by a watercourse, drainageway, channel or stream, the developer must provide a stormwater easement following the lines of that watercourse, sized adequately for its purpose; the code favors conveying stormwater through a swale or open channel with landscaped banks rather than piping it.
Where topography makes it impractical to keep stormwater facilities inside road rights-of-way, the developer must record a perpetual, unobstructed easement at least fifteen feet wide, connected from the road to the stormwater facilities and accessible from the road. If the system will carry water across private land outside the subdivision, that easement must be secured and recorded with the final plat. 5.
Violations & Fines
There is no numeric fine listed in § 15.5-35 itself; the enforcement mechanism is denial of plat approval. Under § 15.5-35(a) the planning commission cannot recommend, and the board cannot approve, a final plat that fails to make adequate provision for stormwater management, meaning a noncompliant developer cannot record the plat or obtain a certificate of occupancy until the stormwater design and easements meet the section's requirements.
Frequently Asked Questions
Does Franklin County require a stormwater plan before I can plat a subdivision?
What stormwater easement does a lot along a creek need in a Franklin County subdivision?
Who reviews stormwater design for new subdivisions in unincorporated Franklin County?
Sources & Official References
Other rules in Franklin County
Florida rules heatmap·Compare Franklin County to another location·View the Florida environmental rules overview
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