Florida Administrative Code › 14 - DEPARTMENT OF TRANSPORTATION › 14 - Departmental › Chapter 14-86 - DRAINAGE CONNECTIONS › Section 14-86.003 - Permit, Assurance Requirements, and Exceptions

Current through Reg. 50, No. 138; July 16, 2024
(1) Permit.
A Drainage Connection Permit, Form 850-040-06, rev. 12/18,
				  and incorporated herein by reference at
https://www.flrules.org/Gateway/reference.asp?No=Ref-10197
is required for all improvement(s) on an adjacent property whether or not the
				  work is done in conjunction with a driveway connection, and whether or not the
				  improvement retains stormwater runoff on the adjacent property up to and
				  including the 100 year event of critical duration.
(2) Assurance Requirements.
(a) The applicant for a drainage connection
				permit shall provide reasonable assurances that:
1. The adjacent property has an approved
				stormwater management plan or master drainage plan adopted or approved by a
				city, county, water management district, or other agency with specific drainage
				or stormwater management authority, which plan includes downstream mitigation
				measures. To the extent the plan relies on the use of any Department
				facilities, such use must have Department approval.
2. The peak discharge rates and total volumes
				of stormwater discharging from the adjacent property to the Department's
				right-of-way are those provided for in an approved stormwater management plan
				or master drainage plan; otherwise the post-improvement stormwater runoff
				discharging from the adjacent property to the Department's right-of-way shall
				not exceed the more stringent of the following:
a. The peak discharge rates and total volumes
				allowed by applicable local regulation; or
b. The pre-improvement discharge rate, and in
				watersheds which do not have a positive outlet, the volume shall not be
				increased beyond the pre-improvement volume considering worst case storms for
				up to the frequencies and durations contained in paragraph
				14-86.003(2)(c),
				F.A.C.
3. Any discharge
				pipe establishing or constituting a drainage connection from the adjacent
				property to the Department's right-of-way is limited in size based on the
				pre-improvement discharge rate, downstream conveyance limitations, downstream
				tailwater influences, and design capacity restrictions imposed by other
				governmental entities.
4. If the
				improvement changes the inflow pattern of stormwater or method of drainage
				connection to the Department's right-of-way, post-improvement discharge will
				not exceed the pre-improvement discharge to the Department's right-of-way, any
				new drainage connection will not threaten the safety or integrity of the
				Department's right-of-way, and will not increase maintenance costs to the
				Department. At a minimum pavement hydraulics, ditch hydraulics, storm drain
				hydraulics, cross drain hydraulics, and stormwater management systems shall be
				analyzed by the applicant. The analysis must follow the methodology used in the
				design of the Department's drainage facilities receiving the discharge and meet
				the criteria in the Department's
Drainage Manual
, Topic Number
				625-040-002, eff. 1/19, incorporated herein by reference at
https://www.flrules.org/Gateway/reference.asp?No=Ref-10117
and available from the Department at:
				http://www.fdot.gov/roadway/Drainage/Manuals and Handbooks.
5. The quality of water conveyed by the
				proposed connection will meet all applicable water quality standards. In the
				event the discharge is identified as potentially causing or contributing to a
				violation of applicable water quality standards, the applicant will be required
				to incorporate such abatement as necessary to bring the discharge into
				compliance with applicable water quality standards.