Chapter NR 129

Chapter NR 129

FLOODPLAIN AND SHORELAND MAPPING GRANT PROGRAM

NR 129.01   Purpose.

NR 129.02   Applicability.

NR 129.03   Definitions.

NR 129.05   Eligibility for a state grant.

NR 129.06   Eligible and ineligible costs.

NR 129.07   Grant awards.

NR 129.08   Criteria for priority ranking.

NR 129.09   Grant application.

NR 129.10   Limitations on award.

NR 129.11   State share.

NR 129.12   Mapping project period.

NR 129.13   Specifications.

NR 129.14   Map approval.

NR 129.15   Grant payments.

NR 129.16   Ordinance adoption or amendment period.

NR 129.17   Grantee accountability.

NR 129.01 NR 129.01 Purpose. The purpose of this chapter is to establish rules under s. 87.31, Stats., for administration of the state grant program to provide financial assistance to counties, cities, and villages for topographical mapping of floodplain and shoreland areas to assist in the establishment and the administration of floodplain and shoreland zoning ordinances.

NR 129.01 History History: Cr. Register, May, 1980, No. 293, eff. 6-1-80; am. Register, April, 1983, No. 328, eff. 5-1-83.

NR 129.02 NR 129.02 Applicability. This chapter shall apply to all applications submitted for state grants for floodplain and shoreland mapping under s. 87.31, Stats.

NR 129.02 History History: Cr. Register, May, 1980, No. 293, eff. 6-1-80; am. Register, April, 1983, No. 328, eff. 5-1-83.

NR 129.03 NR 129.03 Definitions. For the purposes of this chapter:

NR 129.03(1) (1) “Approval” means the written approval of the department.

NR 129.03(2) (2) “Authorized representative” means the municipal official or employee designated by resolution of the governing body of a municipality to act on behalf of the municipality in obtaining a grant under this chapter.

NR 129.03(3) (3) “Detailed floodplain study” means a hydrologic and hydraulic analysis to determine the flood flow discharge for a given flood frequency and the resulting water surface profile of a watercourse.

NR 129.03(4) (4) “Department” means the department of natural resources.

NR 129.03(5) (5) “Flood” means a general and temporary condition of partial or complete inundation of normally dry land areas caused by the overflow or rise of rivers, streams, or lakes.

NR 129.03(6) (6) “Floodplain” means the land which has been or may be hereafter covered by flood water during the regional flood. The floodplain includes the floodway and the flood fringe.

NR 129.03(7) (7) “Flood fringe” means that portion of the floodplain outside of the floodway, which is covered by flood waters during the regional flood, and is generally associated with standing water rather than rapidly flowing water.

NR 129.03(8) (8) “Floodplain management” means the full range of public policy and action for insuring wise use of floodplains. It includes everything from the collection and dissemination of flood control information to actual acquisition of floodplain lands and the enactment and administration of codes, ordinances and statutes for land use in the floodplain.

NR 129.03(9) (9) “Floodway” means the channel of a river or stream and those portions of the floodplain adjoining the channel required to carry and discharge the flood water or flood flows associated with the regional flood.

NR 129.03(10) (10) “High flood damage potential” means the potential for any danger to life or health and any significant economic loss to a structure or building or its contents.

NR 129.03(11) (11) “Municipality” means any county, city or village.

NR 129.03(12) (12) “Official floodplain zoning map” means the map or maps adopted by a county, city or village, approved by the department, referenced in an official floodplain zoning ordinance and used for regulatory purposes.

NR 129.03(13) (13) “Official shoreland zoning map” means the map or maps adopted by a county, approved by the department, referenced in the county’s official shoreland zoning ordinance and used for regulatory purposes.

NR 129.03(14) (14) “Regional flood” means the flood determined to be representative of large floods known to have generally occurred in Wisconsin and which may be expected to occur on a particular stream because of like physical characteristics. The regional flood is based upon a statistical analysis of streamflow records available for the watershed and/or an analysis of rainfall and runoff characteristics in the general watershed region. The flood frequency of the regional flood is once in every 100 years; this means that in any given year there is a 1% chance that the regional flood may occur. During a typical 30-year mortgage period, the regional flood has a 26% chance of occurring.

NR 129.03(15) (15) “Shoreland” means lands within the following distances from the ordinary high-water mark of navigable waters: 1000 feet from a lake, pond, or flowage; and 300 feet from a river or stream or to the landward side of the floodplain, whichever distance is greater.

NR 129.03(16) (16) “Structure” means any public or private man-made object with form, shape and utility, either permanently or temporarily attached to or placed upon the ground, river bed, stream bed or lakebed.

NR 129.03(17) (17) “Topographic map” means a map representing a portion of the earth’s surface showing the culture, relief, hydrography, and vegetation.

NR 129.03(18) (18) “Water surface profile” means a graphical representation of the elevation of the water surface throughout a county, city or village based upon a certain flow passing through the river or stream. A water surface profile based upon flows occurring during a regional flood is used in regulating floodplain areas.

NR 129.03 History History: Cr. Register, May, 1980, No. 293, eff. 6-1-80; am. (3) and (6) to (9), renum. (10) to (17) to be (11) to (18) and am. (12), (13), (15) and (18), cr. (10), Register, April, 1983, No. 328, eff. 5-1-83.

NR 129.05 NR 129.05 Eligibility for a state grant.

NR 129.05(1) (1) Shoreland mapping grants. The following municipalities are eligible for a state grant for shoreland mapping:

NR 129.05(1)(a) (a) Counties which have a department-approved shoreland zoning ordinance in effect for the shoreland portion of the proposed project area.

NR 129.05(1)(b) (b) Counties which have, in the absence of an approved shoreland zoning ordinance in effect for the proposed project area, enacted a moratorium that prohibits all construction, filling and development in the shoreland portion of the proposed project area.

NR 129.05(2) (2) Floodplain mapping grants. The following municipalities are eligible for a state grant for floodplain mapping:

NR 129.05(2)(a) (a) Counties, cities and villages which have a department-approved floodplain zoning ordinance in effect for the floodplain portion of the proposed project area.

NR 129.05(2)(b) (b) Counties, cities and villages which have, in the absence of an approved floodplain zoning ordinance, enacted a moratorium that prohibits all construction, filling and development in the floodplain portion of the proposed project area.

NR 129.05 History History: Cr. Register, May, 1980, No. 293, eff. 6-1-80; r. and recr. Register, April, 1983, No. 328, eff. 5-1-83.

NR 129.06 NR 129.06 Eligible and ineligible costs.

NR 129.06(1) (1) Eligible costs.

NR 129.06(1)(a) (a) The following project costs, whether incurred under contract or in the form of salaries and benefits, are eligible if they are allocatable to the mapping of eligible project areas and are not ineligible under sub. (2):

NR 129.06(1)(a)1. 1. Control survey, including monumentation and identification, both horizontally and vertically, of U.S. public land survey section and 1/4 section corners, centers of sections and correction corners within the eligible project area:

NR 129.06(1)(a)2. 2. Aerial photography;

NR 129.06(1)(a)3. 3. Topographic mapping;

NR 129.06(1)(a)4. 4. Delineation of floodplain, floodway, and shoreland limits and annotation of other pertinent shoreland and floodplain data on the map sheets; and

NR 129.06(1)(a)5. 5. Verification of map accuracy.

NR 129.06(1)(b) (b) Eligible project areas are limited to the following:

NR 129.06(1)(b)1. 1. Any 1/64 section (nominally 10 acres) of the U.S. public land survey or, where another survey system has been used, any equivalent area of up to 10 acres, which contains a floodplain or shoreland area. The eligible project area shall be defined on a 71/2 minute series U.S. geological survey quadrangle map. If U.S.G.S. maps are unavailable, any suitable scale map which depicts the U.S. public land survey may be used. Any 1/64 section divided by a corporate boundary shall be considered eligible if it contains a floodplain or shoreland area.