401 KAR 4:060. Stream construction criteria

Link to law: http://www.lrc.ky.gov/kar/401/004/060.htm
Published: 2015

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      401 KAR 4:060. Stream construction



      RELATES TO: KRS 151.100, 151.110, 151.182,

151.184, 151.186, 151.210, 151.250, 151.260, 151.280, 151.310, 44 C.F.R. Part

60, 64.3

      STATUTORY AUTHORITY: KRS 151.125, 151.230


151.125 requires the secretary to establish requirements for flood control and

water resources. KRS 151.230 authorizes the cabinet to establish minimum

standards for floodplain management. This administrative regulation establishes

standards for construction in floodplain areas.


      Section 1. Definitions. (1) "Areas

of shallow flooding" means a designated flood zone, shown on a FEMA Flood

Insurance Rate Map, with a one (1) percent or greater annual chance of flooding

to an average depth of one (1) to three (3) feet where clearly-defined channel

does not exist, where the path of flooding is unpredictable, where velocity

flow may be evident, and is characterized by ponding or sheet flow.

      (2) "Backwater effect" means

the rise in water surface elevation caused by obstruction of a stream's flow,

such as by a narrow bridge opening, buildings or fill material that limits the

area through which the stream's flow must pass.

      (3) "Base flood" means the

flood having a one (1) percent chance of being equaled or exceeded in any given

year, also called the 100-year frequency flood.

      (4) "Base floodplain" means the

area along, adjacent to, and including a stream, which is inundated by the base

flood on that stream.

      (5) "Base flood elevation" or "BFE"

means the elevation of the water surface measured above mean sea level, as

defined on the applicable FEMA Flood Insurance Rate Map (FIRM) in either the

NGVD 1929 or NAVD 1988 vertical datum, reached during the base flood.

      (6) "Basement" means any area

of the building having its floor below ground level on all sides.

      (7) "Conveyance" means a

measure of the flow-carrying capability of a stream cross section and is equal

to the flow rate at a given depth in cubic feet per second divided by the

square root of the slope of the energy grade line in feet per foot.

      (8) "Cross section" means a

graph or plot of ground elevation across a stream valley or portion of it along

a line perpendicular to the direction of stream flow.

      (9) "Designated floodway" means

the stream and that portion of the adjacent base floodplain specified by a

local ordinance or indicated on National Flood Insurance Program maps.

      (10) "Dry flood proofing" means

modifying a structure so that it is watertight below the flood protection

elevation so that floodwaters cannot enter.

      (11) "Energy grade line" means

a line that represents the elevation of the total energy head of water flowing

in a pipe, conduit, or channel.

      (12) "Existing construction"

means any structure, manufactured home park, or subdivision constructed on or

before the effective date of the FEMA Flood Insurance Rate Map (FIRM) or the

Flood Hazard Boundary Map (FHBM) for the community where the proposed structure

is located, or in cases where no FIRMs are available, on or before October


      (13) "Flood crest" means the

maximum stage or elevation reached or expected to be reached by waters of a

specific flood at a given location.

      (14) "Flood frequency" means a

statistical expression of the average time period between floods equaling or

exceeding a given magnitude.

      (15) "Flood Boundary and Floodway

Map" or "FBFM" means a map on which the Federal Emergency

Management Agency (FEMA) or Federal Insurance Administration (FIA) has delineated

the areas of flood hazards and the regulatory floodway, pursuant to 44 C.F.R.

Part 60 and 64.3.

      (16) "Flood Hazard Boundary Map"

or "FHBM" means an official map of a community issued by FEMA,

pursuant to 44 C.F.R. Part 60 and 64.3, where the boundaries of the areas of special

flood hazard have been identified as Zone A.

      (17) "Flood Insurance Rate Map"

or "FIRM" means an official map of a community on which FEMA,

pursuant to 44 C.F.R. Part 60 and 64.3, has delineated both the areas of

special flood hazard and the risk premium zones applicable to the community.

      (18) "Flood Insurance Study" or

"FIS" is the official hydraulic and hydrological report by FEMA,

pursuant to 44 C.F.R. Part 60 and 64.3, containing flood profiles, the FIRM,

FHBM, where applicable, and the water surface elevation of the base flood.

      (19) "Flood proofing" means

structural changes or adjustments to new or existing structures and facilities,

their contents, or their sites for the purpose of reducing or eliminating flood

damages by protecting against structural failure, keeping water out, or reducing

the effect of water entry, and includes dry flood proofing and wet flood


      (20) "Flood warning" means the

issuance and dissemination of information about an imminent or current flood.

      (21) "Historic structure" means

any structure that is:

      (a) Listed individually in the National

Register of Historic Places or preliminarily determined by the Secretary of the

Interior as meeting the requirements for listing;

      (b) Certified or preliminarily determined

as contributing to the historical significance of a registered historic


      (c) Listed on the state inventory of

historic places; or

      (d) Listed on a local inventory of

historic places in communities with historic preservation programs approved by

the state or the Secretary of the Interior.

      (22) "Letters of Map Change" or

"LOMC" means an official FEMA determination by letter to amend or

revise effective Flood Insurance Rate Maps, Flood Boundary and Floodway Maps,

and Flood Insurance Studies.

      (23) "Licensed engineer or land

surveyor" means a professional engineer or surveyor with accreditation in

the state of Kentucky.

      (24) "Lowest floor" means the

lowest floor of the lowest enclosed area, including any basement, but does not

include an unfinished or flood resistant enclosure usable solely for parking of

vehicles, building access, or storage of mobile equipment or of property that

is not flood damageable in an area other than a basement.

      (25) "Manufactured home" means

a structure, transportable in one (1) or more sections, that is built on a permanent

chassis and designed for use with or without a permanent foundation when

connected to utilities, but does not include recreational vehicles placed on a

site for less than 180 consecutive days.

      (26) "National Flood Insurance

Program", or "NFIP", means a federal program which makes

available flood insurance protection to property owners in flood prone areas.

      (27) "No impact" means a

certification by a licensed engineer that an encroachment shall not result in

any increase in the base flood elevation, floodwater elevations, and floodway

width during the occurrence of the base flood discharge, referred to as

"No Impact Certification".

      (28) "NAVD 1988" means a

vertical control, as corrected in 1988, used a reference for establishing

varying elevations within the floodplain.

      (29) "NGVD 1929" means a

vertical control, as corrected in 1929, used as a reference for establishing

varying elevations within the floodplain.

      (30) "Nonsubstantial

improvement" means any combination of repairs, reconstruction, alteration,

or improvement to a structure in which the cumulative cost does not exceed

fifty (50) percent of the present market value of the structure.

      (31) "100-year flood" means a

flood of a magnitude having a one (1) percent chance of occurring in any given


      (32) "Permit" means written

approval for any construction across, along, or adjacent to a stream subject to

the provisions of KRS 151.250.

      (33) "Profile" means a graph or

elevation plot of the water surface or channel bottom against distance along

the stream.

      (34) "Recreational vehicle"

means a vehicle that is:

      (a) Built on a single chassis;

      (b) 400 square feet or less when measured

at the largest horizontal projection;

      (c) Designed to be self propelled or

permanently towable by a light duty truck; and

      (d) Designed primarily not for use as a

permanent dwelling but as temporary living quarters for recreational, camping,

travel, or seasonal use.

      (35) "Regulatory floodway"

means the stream channel and that portion of adjacent land area that is required

to pass flood flows without raising the base flood crest elevation by more than

one (1) foot.

      (36) "Stream" is defined in KRS


      (37) "Structure" means an

object constructed or installed which may be an obstruction to flood flows such

as buildings, manufactured homes, towers, smokestacks, and overhead

transmission lines.

      (38) "Substantial damage" means

damage of any origin sustained by a structure whereby the cost of restoring the

structure to before-damaged conditions would equal or exceed fifty (50) percent

of the market value of the structure before the damage occurred.

      (39) "Substantial improvement"

means any combination of repairs, reconstruction, alteration, or improvements

to a structure, taking place during a one (1) year period, in which the cumulative

cost equals or exceeds fifty (50) percent of the market value of the structure,

excluding periodic maintenance and upkeep that does not increase the value of

the structure.

      (40) "Wet flood proofing" means

modifying the uninhabited portions of a house, such as a crawlspace so that

floodwaters may get in but will not cause significant damage.


      Section 2. Applicability. This

administrative regulation shall apply to all construction across, along, or

adjacent to a stream (i.e., the base floodplain) or in the floodway of a stream

for which a construction permit is required pursuant to KRS 151.250, 44 C.F.R.

Part 60, and 44 C.F.R. 64.3, except for the construction of dams as defined in

KRS 151.100.


      Section 3. General Provisions. (1) This

administrative regulation shall constitute minimum criteria for the issuance of

permits for stream construction pursuant to KRS 151.250, 44 C.F.R. Part 60, and

44 C.F.R. 64.3.

      (2) The applicant shall properly complete

an appropriate application form, incorporated by reference in Section 9 of this

administrative regulation, with all pertinent information and submit it to the


      (3) Any construction limits specified in

the permit shall be plainly staked or otherwise marked on the site.

      (4) Public notification.

      (a) As part of the stream construction

permit issuance procedure, each applicant shall provide notice to all parties

who may incur additional flood-related damages as a result of the construction for

which a permit has been requested, except as provided in subparagraph 3 of this


      1. For those projects that may have flooding

impacts beyond the local area of the construction, the applicant shall publish

a notice in the newspaper having greatest circulation in the area of the

proposed construction.

      a. This notice shall provide:

      i. The name and address of the applicant;

      ii. The location, nature, and extent of

the proposed construction; and

      iii. The address and telephone number of

the Division of Water and stating the comments and objections shall be directed

to the division.

      b. The notice shall be run for period of

three (3) consecutive days or printings of the newspaper; however, for weekly

newspapers or areas where newspapers are printed less frequently, the cabinet

may reduce this requirement to two (2) consecutive printings upon written

request of the applicant.

      c. The public notice required in subparagraph

1 of this paragraph shall be at least three (3) column inches in size and shall

be large enough that all of the information required in subparagraph 1 of this paragraph

is easily readable.

      2. If the cabinet determines that flood

impacts will be localized, the applicant may obtain and submit affidavits from

all parties who reside, own property, or have other legitimate property

interests in the affected areas. This affidavit shall contain a complete

description of the proposed construction, a place for concerned parties to sign

indicating that they have read the statement and that they understand that a

permit application is being submitted to the cabinet, and the name and address

of the cabinet representative to whom statements of concern or request for

hearing may be addressed.

      3. For construction projects that will

have negligible flood impacts (e.g. placement of electrical utility power poles

or transmission towers if no fill is included or minor stream-bank

restoration), the cabinet may waive the public notification requirement after

receipt of a written request from the applicant to do so.

      4. The cabinet shall notify all persons

filing comments or objections to the issuance of any permit of their right to

be heard pursuant to the provisions of KRS 151.182(2).

      (b) Proof that the notice was published

or the original of the completed affidavit shall be provided to the cabinet

before the application shall be considered complete; however, technical review

of the application by the cabinet may proceed before proof is provided. Issuance

of the permit shall not proceed until sufficient proof of notice is submitted.

      (c) If the cabinet determines any of the

conditions of paragraph (a) of this subsection are not met by the initial

notice or affidavit, it may require that the applicant place another notice or

provide another affidavit which does so. The application shall not be considered

complete until the applicable public notification provisions of this subsection

are satisfied.

      (5) The permit shall become effective on

the date of issuance and shall remain valid for a period of one (1) year.

Extensions may be requested in writing on a year-by-year basis and shall be

granted if:

      (a) The scope of work and ownership has

not changed; and

      (b) There is no change in BFE or

regulatory floodway.

      (6) The permittee shall provide the

cabinet with written notification that construction was completed in accordance

with approved plans and specifications not later than ninety (90) days after

completion of construction. If any of the provisions of the permit are not met,

the cabinet may revoke the permit pursuant to KRS 151.125.

      (7) If any watercourse, channel

relocation, or realignment, and any encroachment that causes a change in base

flood elevations takes place, all supporting technical data shall be submitted

to FEMA in order to obtain the appropriate Letter of Map Change (LOMC) to officially

amend the FIRM in a given community.

      (8) Any substantial improvement that

increases the current market value of the structure by more than fifty (50)

percent shall be considered as new construction. The market value of the

structure shall be:

      (a) The appraised fair market value of

the structure prior to the start of the initial repair or improvement; or

      (b) If damage has occurred, the fair

market value of the structure prior to the damage.

      (9) Substantial improvement shall be considered

to occur when the first alteration of any wall, ceiling, floor, or other structural

part of the building commences, whether or not that alteration affects the external

dimensions of the structure. The term does not; however, include any project

for substantial or nonsubstantial improvement of a structure required to comply

with existing health, sanitary, or safety code specifications which are solely

necessary to ensure safe living conditions.


      Section 4. Uses of Regulatory Floodway.

(1) Except as provided in subsection 2 of this section, all encroachments,

including fill, new construction, substantial improvements, and other

development is prohibited unless certification with supporting technical data

by a licensed engineer is provided, that demonstrates that the encroachments

shall have "no impact" or not result in any increase in flood levels

during occurrence of the base flood discharge.

      (2) The following activities or

structures shall be permitted for land within the regulatory floodway limits of

a stream if they do not result in increases in flood elevations:

      (a) Open space uses having no appreciable

flood damage potential such as those associated with agriculture, silviculture,

recreation, parking, storage yards, and certain sand and gravel operation;

      (b) Certain structures, such as aerial

utility crossings, that are related to allowable open space uses if the

structures are designed, constructed and placed on the lot so as to offer no obstruction

to flood flows;

      (c) Structures necessary for navigation

and waterborne freight handling, for transportation or utility crossings, if every

effort has been made to reduce the impact of all of those facilities on

flooding and if the facilities considered alone or in conjunction with

permissible development above and below it and on the opposite side of the

stream do not create an increase in flood elevations in excess of that which is

appropriate for determination of the floodway boundaries at that site pursuant

to Section 5 of this administrative regulation;

      (d) Dredging or other removal of material

from between the stream banks and the regulatory floodway, if disposal of the

dredged material is outside of the regulatory floodway;

      (e) Recreational vehicles may be

permitted in the regulatory floodway for a period of no more than 180 days if

the vehicle is placed so that it can be moved easily in case of imminent flooding;


      (f) Other activities exempted by 401 KAR

4:020 and 4:050.


      Section 5. Determining Regulatory

Floodway Boundaries. (1) The regulatory floodway boundaries shall include the

stream channel and that portion of the adjacent land areas required to pass the

base flood discharge without increasing the water surface elevation at any

point more than one (1) foot. If the stream flow is supercritical, or if velocity

is so high that backwater considerations are not possible or appropriate, the

determination of regulatory floodway boundaries shall be based on a one (1)

foot maximum allowable rise in the energy grade line. If making these

calculations, the cabinet shall use methods which consider equal conveyance

losses on opposite sides of the stream.

      (2) For stream segments for which a local

government has used methods comparable to those specified in this section to

define floodway boundaries and has adopted these boundaries by ordinance or for

which the Federal Emergency Management Agency (FEMA) has developed a Flood

Insurance Study (FIS), Flood Hazard Boundary Maps (FHBM), Flood Boundary and Floodway

Maps (FBFM), mapped floodway boundaries and areas of shallow flooding, the

cabinet shall consider these designated floodway boundaries to define the regulatory

floodway. If both locally-determined floodway boundaries and FEMA maps are

available, the more stringent shall apply for purposes of this administrative


      (3) Notwithstanding any other provisions

of this administrative regulation, in areas containing one (1) or more houses

or commercial or industrial buildings that may be affected by flooding or at

other locations if the one (1) foot increase in base flood elevation (BFE) allowable

in determining regulatory floodway boundaries would create an undue increase in

flood damages, the cabinet may impose a more stringent limitation on the

floodway determination.

      (4) Base flood flow information shall be

determined by one (1) of the following methods, which are listed in descending

order of preference:

      (a) The base flood flow frequency curve

for gauged sites on unregulated streams shall be obtained from the district

office of the U.S. Geological Survey or the appropriate U.S. Army Corps of

Engineers district office. This data shall be used to provide the best

discharge estimates for the site under consideration. Peak discharges for ungauged

sites on a gauged stream may consider both the gauged site information and

information from an appropriate regional estimate, if available. The transfer

technique for establishing discharges at the ungauged location shall be by

interpolation or extrapolation methods in keeping with best engineering

practices. For gauged streams with regulated flows, peak discharges shall be

obtained from the agency responsible for regulating the flow.

      (b) For ungauged streams one (1) of the

following shall be used:

      1. "Estimating the Magnitude of Peak

Flows for Streams in Kentucky for Selected Recurrence Intervals", U.S.

Geological Survey, Water Resources Investigations Report 03-4180, incorporated

by reference in Section 9 of this administrative regulation;

      2. Natural Resources Conservation Service

"National Engineering Handbook, Part 630: Hydrology", incorporated by

reference in Section 9 of this administrative regulation; or

      3. The cabinet may approve the use of

other generally accepted methods in keeping with best engineering practices.

      (5) For areas below dams or impounding

structures, flood routings shall be determined as if the dam or impounding structure

does not exist.

      (6) In performing the calculations for

regulatory floodway boundaries, the cabinet shall use standard engineering


      (a) The applicant shall provide cross sections

for determining floodway boundaries at any proposed construction site if FEMA

maps are not available. All cross sections shall be referenced to mean sea

level, in either the NGVD 1929 or NAVD 1988 vertical datum, and shall have

vertical error tolerances of no more than plus or minus five-tenths (0.5) foot.

Cross sections elevations shall be taken at those points which represent

significant breaks in slope and at points where hydraulic characteristics of

the base floodplain change. Each cross section shall extend across the entire

base floodplain and shall be in the number and at the locations specified by

the cabinet. Submitted cross sections shall be in a tabular, electronic format.

If necessary to ensure that significant flood damage will not occur, the

cabinet may require additional cross sections or specific site elevations which

extend beyond those needed for making routine regulatory floodway boundary


      (b) Roughness values for use in

regulatory floodway computations shall be calibrated from existing flood

information, if possible. If the information is not available, the cabinet

shall base these values on the professional judgment of the cabinet's staff in

keeping with best engineering practices. The cabinet may require the applicant

to provide photographs or other information if it is helpful in making this


      (c) Slope values used for regulatory

floodway boundary calculations shall be based on flood profiles if available.

      (d) Conveyance loss shall be calculated

through an equal loss method.


      Section 6. Placement of Flood-damageable

Property in Floodplain. (1) In order to minimize or prevent the harmful effects

of stream flooding, the cabinet shall not issue permits for the placement or

construction of flood-damageable property in the base floodplains of streams,

unless the placement or construction conforms to the requirements of the following


      (2) In issuing construction permits

pursuant to KRS 151.250 for the placement of flood-damageable property within the

base flood inundation area the cabinet shall require the following:

      (a) All new construction and substantial

improvements of residential structures within the base floodplain shall have

the lowest floor (including basement) elevated to at least the base flood elevation;

      (b) All new construction and substantial

improvements of existing construction and nonresidential structures within the

base floodplain shall meet the following conditions:

      1. The lowest floor (including basement)

shall be elevated to the base flood elevation or above; or

      2. Together with attendant utility and

sanitary facilities, shall be designed with the application of dry flood

proofing techniques, so that below the base flood level the structure is properly

flood proofed with walls substantially impermeable to the passage of water and

with structural components having the capability of resisting hydrostatic and

hydrodynamic loads and effects of buoyancy;

      (c) New construction or substantial

improvements of existing construction or elevated structures that include

fully-enclosed areas formed by foundation and other exterior walls below the

base flood elevation shall be designed with the application of wet flood

proofing techniques to preclude finished living space and designed to allow for

entry and exit of floodwaters to automatically equalize hydrostatic flood

forces on exterior walls.

      1. Opening sizes for complying with this

requirement shall meet the following minimum criteria:

      a. Provide a minimum of two (2) openings

having a total net area of not less than one (1) square inch for every square

foot of enclosed area subject to flooding;

      b. The bottom of all openings shall be no

higher than one (1) foot above foundation interior grade, which shall be equal

in elevation to or higher than the exterior foundation grade; and

      c. Opening may be equipped with screens,

louvers, valves, or other coverings or devices provided they permit the

automatic flow of floodwaters in both directions.

      2. The interior portion of the enclosed

areas shall not be partitioned or finished into separate rooms.

      (d) The floor elevation or the flood

proofing certification shall be provided by the permittee after the lowest

floor is completed. Upon placement of the lowest floor, or flood proofing by

whatever construction means, the permit holder or owners shall submit to the

Division of Water a certification of the elevation of the lowest floor or flood

proofed elevation, using the FEMA Elevation or Floodproofing Certificate, whichever

is applicable, as built, in relation to mean sea level. The document shall be

prepared and certified by or under the direct supervision of a licensed land

surveyor or engineer. If flood proofing is used for a particular building, the

certification shall be prepared by or under the direct supervision of a licensed

engineer. Any work undertaken prior to submission of the certification shall be

at the permit holder's or owner's risk. The Division of Water shall review the

floor elevation survey data submitted. Deficiencies detected by the cabinet's

review shall be corrected by the permit holder or owner immediately and prior

to further progressive work being performed. Failure to submit the survey or

failure to make the required corrections, shall be cause to issue a stop-work

order for the project; and

      (e) All manufactured homes, except in an

existing manufactured home park or subdivision, shall be elevated to the base

flood elevation and properly anchored to resist flotation, collapse, or lateral

movement. If placed in an existing manufactured home park or subdivision the

home shall be elevated no less than three (3) feet above grade, and properly

anchored. Any manufactured home placed in an existing manufactured home park or

subdivision on which a manufactured home has incurred substantial damage equal

to or exceeding fifty (50) percent of its predamaged market value as a result

of a flood shall be elevated to the base flood elevation and properly anchored.

The expansion of an existing manufactured home park or subdivision constitutes

new construction and placement in that newly developed area shall conform to

both base flood elevation and anchoring requirements.


      Section 7. Construction Materials. All materials

used in projects shall be stable and inert, shall be free from pollutants and

floatable objects, and shall meet all appropriate engineering standards applicable

to the construction project.


      Section 8. Variances and Exceptions. (1)

Encroachments which cause a backwater effect of more than one (1) foot may be

allowed by the cabinet if:

      (a) The applicant owns the entire

affected property on both sides of the stream;

      (b) The amount of backwater at the

nearest upstream property line is no more than considerations in Section 5 of

this administrative regulation would allow; and

      (c) The cabinet has reasonable assurances

that none of the applicant's property within the area of the excessive

backwater shall be subdivided and sold. Reasonable assurances shall include:

      1. Zoning considerations that would

preclude subdivision of the property;

      2. Deed restrictions that would preclude

subdivision of the property;

      3. Restrictive floodplain construction easements

identifying the Commonwealth of Kentucky as owner of the easement; or

      4. All structures built in these areas

shall have their lowest floor elevation at or above the altered elevation or be

flood proofed to that elevation.

      (2) The cabinet may allow regulatory

floodway boundaries to be shifted by changing allocation of conveyance losses. The

cabinet may redesignate the regulatory floodway boundary on one (1) side of a

stream to be closer to the stream channel if a permanent flooding easement is

provided for a compensating area on the opposite side. This easement shall

include that area extending from the top of the opposite stream bank to

whatever distance away from the stream that is required to compensate for the

proposed streamward shift of the floodway boundary. The easement shall specify

the Commonwealth as owner of the easement rights and shall prohibit the

placement of any obstruction on the property. The easement shall be filed of

record in the county where the property is located and the grantor shall

provide proof to the cabinet that the easement has been recorded. If regulatory

floodway boundary changes are approved by the cabinet, the applicant shall be

responsible for having changes made to the appropriate FEMA boundary maps.

      (3) If an area along a stream is incorrectly

indicated within the designated floodway on the FEMA map, an applicant may submit

an independent hydraulic analysis performed by a qualified licensed engineer

that demonstrates the area is not within the designated floodway. The applicant

shall be responsible for obtaining all site-specific information for the

analysis including, if necessary, the information used for the initial FEMA

study. The cabinet shall review the analysis and, if the mapped information is incorrect,

it may issue a permit based on the revised information. The cabinet's permit shall

reflect the boundaries determined by the corrected analysis. The applicant

shall be responsible for submitting the revised information to FEMA. After

review, FEMA may develop Letters of Map Change (LOMC) to amend or revise the

affected FIRM, FBFM, or FIS. LOMCs include the following categories:

      (a) A Conditional Letter of Map Amendment

(CLOMA), which is FEMA's comment on whether a proposed project would be excluded

from the Special Flood Hazard Area (SFHA) shown on the effective National Flood

Insurance Program (NFIP) map.

      (b) A Conditional Letter of Map Revision

(CLOMR), which is FEMA'S comment on a proposed project that would affect the

hydrologic or hydraulic characteristics of a flooding source and thus result in

the modification of the existing regulatory floodway or effective Base Flood


      (c) A Conditional Letter of Map Revision

based on Fill (CLOMR-F), which is FEMA'S comment on whether a proposed project

involving the placement of fill would exclude an area from the SFHA shown on

the NFIP map.

      (d) A Letter of Map Amendment (LOMA),

which is an official amendment, by letter, to an effective NFIP map. A LOMA

establishes a property's location in relation to the SFHA.

      (e) A Letter of Map Revision (LOMR),

which is an official revision, by letter, to an effective NFIP map.

      (f) A Letter of Map Revision based on

Fill (LOMR-F), which is an official revision, by letter, to an effective NFIP


      (4) Exceptions to Section 6 of this

administrative regulation may be allowed for the reconstruction,

rehabilitation, or restoration of historic structures if the proposed repair,

rehabilitation, or restoration will not preclude the structure's continued

designation as a historic structure and the exception is the minimum necessary

to preserve historic character and design of the structure.

      (5) Exceptions may be allowed for the

requirement of a hydraulic or hydrologic study for the replacement or

reconstruction of county or city bridges, if:

      (a) The new bridge, as designed, will be

capable of passing as much or more flow at the base flood level; and

      (b) There are no significant changes in

the elevation and grades of the existing approaches and roadway which may be

within the base floodplain.

      (6) Exceptions may be allowed for the

requirement of a hydraulic study for a new clear span bridge, if the deck

abutments are recessed within the stream banks with no approach fill and if the

chord depths, including curbs, are no greater than eighteen (18) inches.

      (7) Exceptions may be allowed for the

requirement of a hydraulic study for low water crossings, if the structure is

constructed in accordance with the cabinet's standard low water crossing

template found in document DOW 84-01, incorporated by reference in Section 9 of

this administrative regulation.


      Section 9. Incorporation by Reference.

(1) The following material is incorporated by reference:

      (a) "Estimating the Magnitude of

Peak Flows for Streams in Kentucky for Selected Recurrence Intervals, U.S.

Geological Survey, Water Resources Investigations Report 03-4180, 2003",

      (b) "National Engineering Handbook,

Part 630: Hydrology, Natural Resources Conservation Service, July 2001";

      (c) "Kentucky Model Flood Damage

Prevention Ordinance, 2004";

      (d) "Kentucky Division of Water

Policy Document DOW 84-01, 5/18/1984"; and

      (e) "Application for Permit to

Construct Across or Along a Stream and/or Water Quality Certification, DOW

7116, January 2004".

      (2) This material may be inspected,

copied, or obtained, subject to applicable copyright law, at the Kentucky

Division of Water, 200 Fair Oaks Lane, Frankfort, Kentucky 40601, Monday through

Friday, 8 a.m. to 4:30 p.m. (14 Ky.R. 316; Am. 556; eff. 10-2-87;

20 Ky.R. 3005; eff. 7-7-94; 33 Ky.R. 1122; 2283; eff. 3-9-2007; TAm eff. 11-25-08.)