The Floodplain Administrator shall make interpretations, where
needed, as to the exact location of special flood hazard areas, floodplain
boundaries and floodway boundaries. The following shall apply to the
use and interpretation of FIRMs and data:
A. Where field surveyed topography indicates that ground elevations:
(1) Are below the base flood elevation, even in areas not delineated
as a special flood hazard area on a FIRM, the area shall be considered
as special flood hazard area and subject to the requirements of these
regulations;
(2) Are above the base flood elevation, the area shall be regulated as
special flood hazard area unless the applicant obtains a Letter of
Map Change that removes the area from the special flood hazard area.
B. In FEMA-identified special flood hazard areas where base flood elevation
and floodway data have not been identified and in areas where FEMA
has not identified special flood hazard areas, any other flood hazard
data available from a federal, state or other source shall be reviewed
and reasonably used.
C. Base flood elevations and designated floodway boundaries on FIRMs
and in FISs shall take precedence over base flood elevations and floodway
boundaries by any other sources if such sources show reduced floodway
widths and/or lower base flood elevations.
D. Other sources of data shall be reasonably used if such sources show
increased base flood elevations and/or larger floodway areas than
are shown on FIRMs and in FISs.
E. If a preliminary Flood Insurance Rate Map and/or a preliminary Flood
Insurance Study has been provided by FEMA:
(1) Upon the issuance of a letter of final determination by FEMA, if
the preliminary flood hazard data is more restrictive than the effective
data, it shall be used and shall replace the flood hazard data previously
provided from FEMA for the purposes of administering these regulations.
(2) Prior to the issuance of a letter of final determination by FEMA, the use of preliminary flood hazard data shall be deemed the best available data pursuant to Section
131-3C and used where no base flood elevations and/or floodway areas are provided on the effective FIRM.
(3) Prior to issuance of a letter of final determination by FEMA, the
use of preliminary flood hazard data is permitted where the preliminary
base flood elevations, floodplain or floodway boundaries exceed the
base flood elevations and/or designated floodway widths in existing
flood hazard data provided by FEMA. Such preliminary data may be subject
to change and/or appeal to FEMA.
Application for a permit shall be made by the owner of the property
or the owner's authorized agent (herein referred to as the applicant)
prior to the start of any work. The application shall be on a form
furnished for that purpose.
A. At a minimum, applications shall include:
(1) Site plans drawn to scale showing the nature, location, dimensions
and existing and proposed topography of the area in question, and
the location of existing and proposed structures, excavation, filling,
storage of materials, drainage facilities and other proposed activities.
(2) Elevation of the existing natural ground where buildings or structures
are proposed, referenced to the datum on the FIRM.
(3) Delineation of flood hazard areas, designated floodway boundaries,
flood zones, base flood elevations and flood protection setbacks.
Base flood elevations shall be used to delineate the boundary of flood
hazard areas and such delineations shall prevail over the boundary
of SFHAs shown on FIRMs.
(4) Where floodways are not delineated or base flood elevations are not
shown on the FIRMs, the Floodplain Administrator has the authority
to require the applicant to use information provided by the Floodplain
Administrator, information that is available from federal, state or
other sources, or to determine such information using accepted engineering
practices or methods approved by the Floodplain Administrator. [NOTE:
See "Managing Floodplain Development in Approximate Zone A Areas:
A Guide for Obtaining and Developing Base (100-Year) Flood Elevations"
(FEMA 265).]
(5) Determination of the base flood elevations, for development proposals
and subdivision proposals, each with at least 5 lots or at least 5
acres, whichever is the lesser, in special flood hazard areas where
base flood elevations are not shown on the FIRM; if hydrologic and
hydraulic engineering analyses are submitted, such analyses shall
be performed in accordance with the requirements and specifications
of MDE and FEMA.
(6) Hydrologic and hydraulic engineering analyses for proposals in special
flood hazard areas where FEMA has provided base flood elevations but
has not delineated a floodway; such analyses shall demonstrate that
the cumulative effect of proposed development, when combined with
all other existing and anticipated development, will not increase
the water surface elevation of the base flood by more than 1 foot,
or a lower increase if required by MDE.
(7) For encroachments in floodways, an evaluation of alternatives to
such encroachments, including different uses of the site or portion
of the site within the floodway, and minimization of such encroachment.
(8) If fill is proposed to be placed for a purpose other than to elevate
structures, the applicant shall indicate the intended purpose for
the fill.
(9) For proposed buildings and structures, including substantial improvement
and repair of substantial damage, repetitive loss structures and placement
and replacement of manufactured homes, including substantial improvement
and repair of substantial damage:
(a)
The proposed elevation of the lowest floor, including basement,
referenced to the datum on the FIRM and a signed agreement to submit
an elevation certificate.
(b)
The signed declaration of land restriction (nonconversion agreement)
that shall be recorded on the property deed prior to issuance of the
certificate of occupancy, if the application includes an enclosure
below the lowest floor or a crawl/underfloor space that is more than
four feet in height.
(c)
A written evaluation of alternative methods considered to elevate structures and manufactured homes, if the location is in nontidal waters of the state and fill is proposed to achieve the elevation required in Section
131-31A or Section
131-32A.
(10)
For accessory structures that are 300 square feet or larger in area (footprint) and that are below the base flood elevation, a variance is required as set forth in Article
VI. If a variance is granted, a signed declaration of land restriction (nonconversion agreement) shall be recorded on the property deed prior to issuance of the certificate of occupancy.
(11)
For temporary structures and temporary storage, specification
of the duration of the temporary use.
(12)
For proposed work on existing buildings, structure and manufactured
homes, including any improvement, addition, repairs, alterations,
rehabilitation or reconstruction, sufficient information to determine
if the work constitutes substantial improvement or repair of substantial
damage, including but not limited to:
(a)
If the existing building or structure was constructed after
March 2, 1983, evidence that the work will not alter any aspect of
the building or structure that was required for compliance with the
floodplain management requirements in effect at the time the building
or structure was permitted.
(b)
If the proposed work is a horizontal addition, a description
of the addition and whether it will be independently supported or
structurally connected to the base building and the nature of all
other modifications to the base building, if any.
(c)
Documentation of the market value of the building or structure
before the improvement or, if the work is repair of damage, before
the damage occurred.
(d)
Documentation of the actual cash value of all proposed work,
including the actual cash value of all work necessary to repair and
restore damage to the before-damaged condition, regardless of the
amount of work that will be performed. The value of work performed
by the owner or volunteers shall be valued at market labor rates;
the value of donated or discounted materials shall be valued at market
rates.
(13)
Certifications and/or technical analyses prepared or conducted
by a licensed professional engineer or licensed architect, as appropriate,
including:
(a)
The determination of the base flood elevations or hydrologic and hydraulic engineering analyses prepared by a licensed professional engineer that are required by the Floodplain Administrator or are required by these provisions in: Section
131-17 for certain subdivisions and development; Section
131-30A for development in designated floodways; Section
131-30C for development in flood hazard areas with base flood elevations but no designated floodways; and Section
131-30E for deliberate alteration or relocation of watercourses.
(b)
The floodproofing certificate for nonresidential structures that are floodproofed as required in Section
131-32B.
(c)
Certification that engineered flood openings are designed to meet the minimum requirements of Section
131-31C(3) to automatically equalize hydrostatic flood forces.
(d)
Certification that the proposed elevation, structural design, specifications and plans and the methods of construction to be used for structures in coastal high hazard areas (V Zones) and Coastal A Zones, are in accordance with accepted standards of practice and meet the requirements of Section
131-37C.
(14)
For nonresidential structures that are proposed with floodproofing, an operations and maintenance plan as specified in Section
131-32B(3).
(15)
Such other material and information as may be requested by the
Floodplain Administrator and necessary to determine conformance with
these regulations.
B. New technical data.
(1) The applicant may seek a Letter of Map Change by submitting new technical
data to FEMA, such as base maps, topography and engineering analyses,
to support revision of floodplain and floodway boundaries and/or base
flood elevations. Such submissions shall be prepared in a format acceptable
to FEMA, and any fees shall be the sole responsibility of the applicant.
A copy of the submittal shall be attached to the application for a
permit.
(2) If the applicant submits new technical data to support any change
in floodplain and designated floodway boundaries and/or base flood
elevations but has not sought a Letter of Map Change from FEMA, the
applicant shall submit such data to FEMA as soon as practicable, but
not later than 6 months after the date such information becomes available.
Such submissions shall be prepared in a format acceptable to FEMA,
and any fees shall be the sole responsibility of the applicant.
The Floodplain Administrator shall:
A. Review applications for development in special flood hazard areas
to determine the completeness of information submitted. The applicant
shall be notified of incompleteness or additional information that
is required to support the application.
B. Notify applicants that permits from MDE and the U.S. Army Corps of
Engineers and other state and federal authorities may be required.
C. Review all permit applications to assure that all necessary permits
have been received from the federal, state or local governmental agencies
from which prior approval is required. The applicant shall be responsible
for obtaining such permits, including permits issued by:
(1) The U.S. Army Corps of Engineers under Section 10 of the Rivers and
Harbors Act and Section 404 of the Clean Water Act;
(2) MDE pursuant to COMAR 26.23 (Nontidal Wetlands) and Section 401 of
the Clean Water Act;
(3) MDE for construction on nontidal waters of the state pursuant to
COMAR 26.17.04; and
(4) MDE pursuant to COMAR 26.24 (Tidal Wetlands).
D. Review applications for compliance with these provisions after all information required in Section
131-12 of this chapter or identified and required by the Floodplain Administrator has been received.
The Floodplain Administrator shall make periodic inspections
of development permitted in special flood hazard areas, at appropriate
times throughout the period of construction in order to monitor compliance.
Such inspections may include:
A. Stake-out inspection, to determine location on the site relative
to the flood hazard area and designated floodway.
B. Foundation inspection, upon placement of the lowest floor and prior
to further vertical construction, to collect information or certification
of the elevation of the lowest floor.
C. Inspection of enclosures below the lowest floor, including crawl/underfloor
spaces, to determine compliance with applicable provisions.
D. Utility inspection, upon installation of specified equipment and
appliances, to determine appropriate location with respect to the
base flood elevation.
E. Final inspection prior to issuance of the certificate of occupancy.
Pursuant to the agreement to submit an elevation certificate submitted with the application as required in Section
131-12A(9)(a), the permittee shall have an elevation certificate prepared and submitted prior to final inspection and issuance of a certificate of occupancy for elevated structures and manufactured homes, including new structures and manufactured homes, substantially-improved structures and manufactured homes, repetitive loss structures and additions to structures and manufactured homes.