Portland Land Use Code

Citation: Portland Land Use Code 2.
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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2. Use construction materials that are other utility service equipment, facilities,
resistant to flood damage. machinery, or connections servicing a
3. Use construction methods and practices structure, elevated to at least two feet
that will minimize flood damage. above the base flood elevation.
4. Use electrical, heating, ventilation, 2. Zone VE shall meet the requirements of
plumbing, and air conditioning equipment, Subsection 12.4.5(R)(2)(a).
and other service facilities that are G. Physical changes to the natural landscape.
designed and/or located so as to prevent Certain development projects, including but
water from entering or accumulating not limited to, retaining walls, sea walls, levees,
within the components during flooding berms, and rip rap, can cause physical changes
conditions. that affect flooding conditions.
B. Water supply. All new and replacement water 1. All development projects in Zones AE,
supply systems shall be designed to minimize or Coastal AE, and VE that cause physical
eliminate infiltration of flood waters into the changes to the natural landscape shall be
systems. reviewed by a qualified professional to
C. Sanitary sewage systems. All new and determine whether or not the project
replacement sanitary sewage systems shall be changes the base flood elevation, zone,
designed and located to minimize or eliminate and/or the flood hazard boundary line. For
infiltration of flood waters into the system and the purposes of this article, qualified
discharges from the system into flood waters. professional shall mean an individual either
D. On-site waste disposal systems. On site licensed by the State of Maine or qualified
waste disposal systems shall be located and in another manner to perform the
constructed to avoid impairment to them or specified work in accordance with all
contamination from them during floods. applicable design standards and codes, and
E. Altered or relocated watercourses. All whose qualifications indicate that the work
development associated with altered or as designed and as performed will not
relocated portions of a watercourse shall be increase flood risk to public safety. If the
constructed and maintained in such a manner qualified professional is not licensed by the
that no reduction occurs in the flood carrying State of Maine, the local permitting
capacity of the watercourse. authority shall request that the qualified
F. Utilities. New construction or substantial professional identify their qualifications in
improvement of any structure (including writing.
manufactured homes) located within: a. If the qualified professional
1. Zones A, AE, AO, and AH shall have the determines, through the use of
bottom of all electrical, heating, plumbing, standard practices, that the project
ventilation and air conditioning equipment, would not necessitate a Letter of Map
permanent fixtures and components, Revision (LOMR), a certified
HVAC ductwork and duct systems, and any statement shall be provided. 12-8 | CITY OF PORTLAND LAND USE CODE FLOODPLAIN MANAGEMENT

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