Portland Land Use Code

Citation: Portland Land Use Code
Parent Document: Portland Land Use Code
Jurisdiction: Portland (municipal)
Original Source: https://www.portlandmaine.gov/asset/a5dcd1dc-4117-40b3-b3da-74a56919e14b ↗

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ii. The pile or column foundation ii. Certify that the design and
and the elevated portion of the methods of construction to be
structure attached thereto is used are in accordance with
anchored to resist flotation, accepted standards of practice
collapse, and lateral movement for meeting the criteria of
due to the effects of wind and Subsections 12.4.5(R)(2)(b), (c),
water loads acting simultaneously and (d).
on all building components. 3. The use of fill for structural support in
iii. Water loading values used shall Zones VE and Coastal AE is prohibited.
be those associated with the base 4. Human alteration of sand dunes within
flood. Wind loading values used Zones VE and Coastal AE is prohibited
shall be those required by unless it can be demonstrated that such
applicable state and local building alterations will not increase potential flood
standards. damage.
c. Have the space below the lowest floor: 5. The area below the lowest floor may be
i. Free of obstructions, or used solely for parking vehicles, building
ii. Constructed with open wood access, and storage.
lattice work or insect screening 6. Physical changes to the natural landscape
intended to collapse under wind in Zone VE are subject to the minimum
and water without causing requirements of Subsection 12.4.5(G).
collapse, displacement, or other 7. Wharves, piers, and docks in Zone VE are
structural damage to the elevated subject to the requirements of Subsection
portion of the building or 12.4.5(Q).
supporting piles or columns, or 8. Lobster sheds and fishing sheds may be
iii. Constructed with non-supporting located seaward of mean high tide and
breakaway walls which have a shall be exempt from the elevation
design safe loading resistance of requirement in Subsection 12.4.5(I) only if
not less than 10 or more than 20 reviewed and approved as a conditional
pounds per square foot. use by the Zoning Board of Appeals, as
d. Require a registered professional provided in Section 12.5, and if all the
engineer or architect to: following requirements of Subsections
i. Develop or review the structural 12.4.5(A), (M), and (N) are met:
design, specifications, and plans a. The conditional use shall be limited to
for the construction, which must low value structures such as metal or
meet or exceed the technical wood sheds 200 square feet or less
criteria contained in the Coastal and shall not exceed more than one
Construction Manual (FEMA-55). story. CITY OF PORTLAND LAND USE CODE | 12-15 FLOODPLAIN MANAGEMENT

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