§ 600-1826. Special requirements for subdivisions.

All subdivision proposals and development proposals containing at least 50 lots or at least five acres, whichever is the lesser, in the Floodplain Overlay Zone where base flood elevation data are not available, shall be supported by hydrologic and hydraulic engineering analyses that determine base flood elevations and floodway information. The analyses shall be prepared by a licensed professional engineer in a format required by FEMA for a Conditional Letter of Map Revision or Letter of Map Revision. Submittal requirements and processing fees shall be the responsibility of the applicant.

§ 600-1827. Special requirements for manufactured homes.

   A.   Within the Floodplain Overlay Zone, manufactured homes shall be prohibited within the floodway or the area measured 50 feet landward from the top-of-bank of any watercourse.

   B.   Where permitted within the Floodplain Overlay Zone, all manufactured homes, and any improvements thereto, shall be:

      (1)   Placed on a permanent foundation;

      (2)   Elevated so that the lowest floor of the manufactured home is at least 1 1/2 feet above base flood elevation; and

      (3)   Anchored to resist flotation, collapse, or lateral movement.

   C.   Installation of manufactured homes shall be done in accordance with the manufacturers' installation instructions as provided by the manufacturer. Where the applicant cannot provide the above information, the requirements of Appendix E of the 2009 International Residential Building Code or the U.S. Department of Housing and Urban Development's Permanent Foundations for Manufactured Housing, 1984 Edition, draft or latest revision thereto, shall apply and 34 Pa. Code Chapters 401 through 405.

   D.   Consideration shall be given to the installation requirements of the 2009 IBC, and the 2009 IRC or the most recent revisions thereto and 34 Pa. Code, as amended where appropriate and/or applicable to units where the manufacturers' standards for anchoring cannot be provided or were not established for the unit(s) proposed installation.

§ 600-1828. Special requirements for recreational vehicles.

Recreational vehicles within the Floodplain Overlay Zone must either:

   A.   Be on the site for fewer than 180 consecutive days;

   B.   Be fully licensed and ready for highway use; or

   C.   Meet the permit requirements for manufactured homes in § 600-1827.