Definitions.
DEVELOPMENT
Any man-made change to improved or unimproved real estate, including but not limited to building or other structures, mining, dredging, filling, grading, paving, excavation or drilling operations or storage of equipment or materials. (44 CFR 59)
FLOOD BOUNDARY AND FLOODWAY MAP
An official map of a community issued by FEMA that depicts, based on detailed analyses, the boundaries of the 100-year and 500-year floods and the 100-year floodway. (For maps prepared in 1987 and later, the floodway designation is included on the FIRM.)
FLOODWAY
The channel of the river, creek or other watercourse and the adjacent land areas that must be reserved in order to discharge the base flood without cumulatively increasing the water surface elevation more than a designated height. (Base Code - 2015 International Building Code, Chapter 2, Section 202)
FUNCTIONALLY DEPENDENT USE
A use which cannot perform its intended purpose unless it is located or carried out in close proximity to water. The term includes only docking facilities, port facilities that are necessary for the loading and unloading of cargo or passengers, and shipbuilding and ship repair facilities, but does not include long-term storage or related manufacturing facilities. (44 CFR 59) Also (Referenced Standard ASCE 24-14)
HIGHEST ADJACENT GRADE
The highest natural elevation of the ground surface prior to construction next to the proposed walls of a structure. (44 CFR 59)
HISTORIC STRUCTURE
Any structure that is:
(1)
Listed individually in the National Register of Historic Places (a listing maintained by the Department of Interior) or preliminarily determined by the Secretary of the Interior as meeting the requirements for individual listing on the National Register;
(2)
Certified or preliminarily determined by the Secretary of the Interior as contributing to the historical significance of a registered historic district or a district preliminarily determined by the Secretary to qualify as a registered historic district;
(3)
Individually listed on a state inventory of historic places in states with historic preservation programs which have been approved by the Secretary of the Interior; or
(4)
Individually listed on a local inventory of historic places in communities with historic preservation programs that have been certified either:
(a)
By an approved state program as determined by the Secretary of the Interior; or
(b)
Directly by the Secretary of the Interior in states without approved programs. (44 CFR 59)
NEW CONSTRUCTION
Structures for which the start of construction commenced on or after the effective date of these provisions (May 1, 2023) of the Northfield Floodplain Overlay District Bylaw. In addition, any subsequent substantial improvements to structures existing on or after September 30, 1980 (the adoption date of Northfield's first Floodplain Bylaw) will also be subject to the provisions of this bylaw. New construction includes work determined to be substantial improvement. (Referenced Standard ASCE 24-14)
RECREATIONAL VEHICLE
A vehicle which is:
(1)
Built on a single chassis;
(2)
Four hundred square feet or less when measured at the largest horizontal projection;
(3)
Designed to be self-propelled or permanently towable by a light duty truck; and
(4)
Designed primarily for use as temporary living quarters for recreational, camping, travel, or seasonal use but not for use as a permanent dwelling. (44 CFR 59)
REGULATORY FLOODWAY
See "floodway."
SPECIAL FLOOD HAZARD AREA — The land area subject to flood hazards and shown on a Flood Insurance Rate Map or other flood hazard map as Zone A, AE, A1-30, A99, AR, AO, or AH. (Base Code
2015 International Building Code, Chapter 2, Section 202)
START OF CONSTRUCTION
The date of issuance of a building permit for new construction and substantial improvements to existing structures, provided the actual start of construction, repair, reconstruction, rehabilitation, addition, placement or other improvement is within 180 days after the date of issuance. The actual start of construction means the date of the first placement of permanent construction of a building (including a manufactured home) on a site, such as the pouring of a slab or footings, installation of pilings or construction of columns. For the purposes of establishing the start of construction, permanent construction does not include land preparation (such as clearing, excavation, grading or filling), the installation of streets or walkways, excavation for a basement, footings, piers or foundations, the erection of temporary forms or the installation of accessory buildings such as garages or sheds not occupied as dwelling units or not part of the main building. For a substantial improvement, the actual start of construction means the first alteration of any wall, ceiling, floor or other structural part of a building, whether or not that alteration affects the external dimensions of the building. (Base Code - 2015 International Building Code, Chapter 2, Section 202)
STRUCTURE
For floodplain management purposes, a walled and roofed building, including a gas or liquid storage tank, that is principally above ground, as well as a manufactured home. (44 CFR 59)
SUBSTANTIAL REPAIR OF A FOUNDATION
When work to repair or replace a foundation results in the repair or replacement of a portion of the foundation with a perimeter along the base of the foundation that equals or exceeds 50% of the perimeter of the base of the foundation measured in linear feet, or repair or replacement of 50% of the piles, columns or piers of a pile, column or pier supported foundation, the building official shall determine it to be substantial repair of a foundation. Applications determined by the building official to constitute substantial repair of a foundation shall require all existing portions of the entire building or structure to meet the requirements of 780 CMR. (As amended by 9th Edition of the State Building Code)
VARIANCE
A grant of relief by a community from the terms of a floodplain management regulation. (44 CFR 59)
VIOLATION
The failure of a structure or other development to be fully compliant with the community's floodplain management regulations. A structure or other development without the elevation certificate, other certifications, or other evidence of compliance required in 44 CFR § 60.3(b)(5), (c)(4), (c)(10), (d)(3), (e)(2), (e)(4), or (e)(5) is presumed to be in violation until such time as that documentation is provided. (44 CFR 59)