[Amended 7-7-2025 by Ord. No. 1690]
A.
Statement of purpose and location.
(1)
The Floodplain Overlay District is herein established as an overlay district.
(2)
The purposes of the Floodplain Overlay District are to:
(a)
Ensure public safety through reducing the threats to life and personal injury.
(b)
Eliminate new hazards to emergency response officials.
(c)
Prevent the occurrence of public emergencies resulting from water quality contamination and pollution due to flooding.
(d)
Avoid the loss of utility services which if damaged by flooding would disrupt or shut down the utility network and impact regions of the community beyond the site of flooding.
(e)
Eliminate costs associated with the response to and cleanup of flooding conditions.
(f)
Reduce damage to public and private property resulting from flooding waters.
(3)
Location. The District includes all special flood hazard areas within Gardner designated as Zone A or AE on the Worcester County Flood Insurance Rate Map (FIRM) dated July 8, 2025, issued by the Federal Emergency Management Agency (FEMA) for the administration of the National Flood Insurance Program. The exact boundaries of the District shall be defined by the 1%-chance base flood elevations shown on the FIRM and further defined by the Worcester County Flood Insurance Study (FIS) report dated July 8, 2025. The FIRM and FIS report are incorporated herein by reference and are on file with the City Clerk, Planning Board, Building Commissioner, Conservation Commission and City Engineer.
(4)
The City of Gardner hereby designates the position of City Engineer to be the official floodplain administrator for the City.
(5)
The floodplain management regulations found in this Floodplain Overlay District section shall take precedence over any less restrictive conflicting local laws, ordinances or codes.
B. DEVELOPMENT FLOODWAY FUNCTIONALLY DEPENDENT USE HIGHEST ADJACENT GRADE HISTORIC STRUCTURE(1) (2) (3) (4) NEW CONSTRUCTION RECREATIONAL VEHICLE(1) (2) (3) (4)
REGULATORY FLOODWAY SPECIAL FLOOD HAZARD AREA START OF CONSTRUCTION STRUCTURE SUBSTANTIAL REPAIR OF A FOUNDATION VARIANCE VIOLATION
Definitions. As used in this section, the following terms shall have the meanings indicated:
Means 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 Part 59]
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, Chapter 2, Section 202]
Means 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 ship building and ship repair facilities, but does not include long- term storage or related manufacturing facilities. [44 CFR Part 59; also Referenced Standard ASCE 24-14]
Means the highest natural elevation of the ground surface prior to construction next to the proposed walls of a structure. [44 CFR Part 59]
Means any structure that is:
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;
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;
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
Individually listed on a local inventory of historic places in communities with historic preservation programs that have been certified either:
Structures for which the start of construction commenced on or after the effective date of the first floodplain management code, regulation, ordinance, or standard adopted by the authority having jurisdiction, including any subsequent improvements to such structures. New construction includes work determined to be substantial improvement. [Referenced Standard ASCE 24-14]
Means a vehicle which is:
Built on a single chassis;
Four hundred square feet or less when measured at the largest horizontal projection;
Designed to be self-propelled or permanently towable by a light-duty truck; and
Designed primarily not for use as a permanent dwelling but as temporary living quarters for recreational, camping, travel, or seasonal use.
[44 CFR Part 59] |
See "floodway."
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, AH. [Base Code, Chapter 2, Section 202]
The date of issuance 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 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. 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, Chapter 2, Section 202]
Means, 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 Part 59]
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 MA in 9th Edition BC]
Means a grant of relief by a community from the terms of a floodplain management regulation. [44 CFR Part 59]
Means 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 § 60.3 is presumed to be in violation until such time as that documentation is provided. [44 CFR Part 59]
C.
Floodplain Overlay District boundaries and base flood elevation and floodway data.
(1)
Base flood elevation and floodway data.
(a)
Floodway data. In Zones A and AE, along watercourses that have not had a regulatory floodway designated, the best available federal, state, local, or other floodway data shall be used to prohibit encroachments in floodways which would result in any increase in flood levels within the community during the occurrence of the base flood discharge.
(b)
Base flood elevation data. When proposing subdivisions or other developments greater than 50 lots or five acres (whichever is less), the proponent must provide technical data to determine base flood elevations for each developable parcel shown on the design plans.
(2)
Unnumbered A Zones. In A Zones, in the absence of FEMA BFE data and floodway data, the Building Department will obtain, review and reasonably utilize base flood elevation and floodway data available from a federal, state, or other source as criteria for requiring new construction, substantial improvements, or other development in Zone A and as the basis for elevating residential structures to or above base flood level, for floodproofing or elevating nonresidential structures to or above base flood level, and for prohibiting encroachments in floodways.
D.
Notification of watercourse alteration.
(1)
In a riverine situation, the City Engineer shall notify the following of any alteration or relocation of a watercourse:
(2)
If the City acquires data that changes the base flood elevation in the FEMA mapped special flood hazard areas, the City will, within six months, notify FEMA of these changes by submitting the technical or scientific data that supports the change(s). Notification shall be submitted to:
E.
Use regulations.
(1)
Compliance with state regulations.
(a)
The Floodplain Overlay District is established as an overlay district to all other districts. All development in the district, including structural and nonstructural activities, whether permitted by right or by special permit, must be in compliance with MGL c. 131, § 40, and with the following:
[1]
Section of the Massachusetts State Building Code which addresses floodplain and coastal high-hazard areas (currently 780 CMR 3107, Flood- Resistant Construction).
[2]
Wetlands Protection Regulations, Department of Environmental Protection (DEP) (currently 310 CMR 10.00).
[3]
Inland Wetlands Restriction, DEP (currently 310 CMR 13.00).
[4]
Minimum Requirements for the Subsurface Disposal of Sanitary Sewage, DEP (currently 310 CMR 15, Title 5).
(b)
Any variances from the provisions and requirements of the above-referenced state regulations may only be granted in accordance with the required variance procedures of these state regulations.
(c)
Variances to building code floodplain standards. The City will request from the State Building Code Appeals Board a written and/or audible copy of the portion of the hearing related to the variance, and will maintain this record in the community's files.
(d)
The City shall also issue a letter to the property owner regarding potential impacts to the annual premiums for the flood insurance policy covering that property, in writing over the signature of a community official, that i) the issuance of a variance to construct a structure below the base flood level will result in increased premium rates for flood insurance up to amounts as high as $25 for $100 of insurance coverage and ii) such construction below the base flood level increases risks to life and property. Such notification shall be maintained with the record of all variance actions for the referenced development in the Floodplain Overlay District.
(2)
Local use regulations.
(a)
All subdivision proposals and development proposals must be designed to assure that:
(b)
Existing contour intervals of the site and elevations of existing structures must be included on plan proposal.
(c)
There shall be established a routing procedure which will circulate or transmit one copy of the development plan to the Conservation Commission, Planning Board, Board of Health, City Engineer, Building Commissioner and Planning Director for comments which will be considered by the appropriate permitting board prior to issuing applicable permits.
(d)
Variances to the City of Gardner Zoning Bylaws related to community compliance with the National Flood Insurance Program (NFIP): A variance from this section must meet the requirements set out by state law, and may only be granted if:
(3)
Permitted uses.
(a)
The purpose of the Floodplain Overlay District, as noted above, is to preserve and maintain the groundwater table; to protect the public health and safety, persons and property against the hazards of floodwater inundation, for the protection of the community against the costs which may be incurred when unsuitable development occurs in swamps, in marshes, along watercourses, or in areas subject to floods; and to conserve natural conditions, wildlife, and open spaces for the education, recreation and general welfare of the public.
(b)
Notwithstanding the provisions hereof, nothing herein shall be deemed to permit a building, structure or use which is not permitted in the underlying district.
(c)
Within a Floodplain Overlay District, no dwelling or building shall be erected, altered, or used and no premises shall be used except for one or more of the following uses:
[1]
Any woodland, grassland, wetland, agricultural, horticultural or recreational use of land or water not requiring filling. Buildings and sheds not accessory to any of the floodplain uses are permitted by special permit from the Planning Board. Notice of each floodplain building permit application shall be given to the City Public Works Department, to the City Board of Health, to the City Engineer and to the City Conservation Commission as well as all other parties as required.
(d)
Within A and AE Zones, all recreational vehicles to be placed on a site must be elevated and anchored in accordance with the zone's regulations for foundation and elevation requirements or be on the site for less than 180 consecutive days or be fully licensed and highway ready.
(e)
The Planning Board, on hearing such application, shall consider, in addition to any factors said Board deems pertinent, the following aspects with respect to flooding and Floodplain District zoning provisions: that any such building or structure shall be designed, placed and constructed to offer a minimum obstruction to the flow of water; that it shall be firmly anchored to prevent floating away; and that it shall be constructed in accordance with the requirements of the State Building Code.
(f)
Applications for revisions to the FIRM should be submitted to FEMA for review and approval under the letter of map amendment and letter of map revision process.
(4)
Prohibited uses.
(a)
Notwithstanding Subsection E(3) above, the following shall be prohibited in the Floodplain Overlay District:
(b)
In any Floodplain Overlay District, after the adoption of this provision, no land, building, or structure shall be used for sustained human occupancy except dwellings theretofore lawfully existing or land, buildings or structures which comply with the provisions of this chapter.
(c)
In Zones A and AE, along watercourses that have a regulatory floodway designated on the City's FIRM encroachments are prohibited, including fill, new construction, substantial improvements, and other development within the adopted regulatory floodway unless it has been demonstrated through hydrologic and hydraulic analyses performed in accordance with standard engineering practice that the proposed encroachment would not result in any increase in flood levels within the community during the occurrence of the base flood discharge.
(5)
Permits.
(a)
The City of Gardner requires a special permit for all proposed construction or other development in the Floodplain Overlay District, including new construction or changes to existing buildings, placement of manufactured homes, placement of agricultural facilities, fences, sheds, storage facilities or drilling, mining, paving and any other development that might increase flooding or adversely impact flood risks to other properties.
(b)
The City's permit review process includes the requirement that the proponent obtain all local, state and federal permits that will be necessary in order to carry out the proposed development in the Floodplain Overlay District. The proponent must acquire all necessary permits, and must demonstrate that all necessary permits have been acquired.
(6)
Disclaimer of liability. The degree of flood protection required by this section is considered reasonable but does not imply total flood protection.
(7)
Severability. If any section, provision or portion of this section is deemed to be unconstitutional or invalid by a court, the remainder of the section shall be effective.