Appendix L - Federal Emergency Management Agency

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Appendix LWTR_NM R The extent of the datum conversion factor calculation of this point.This refers to whether this datum conversion point is used for awhole countywide FIRM or a stream-by-stream datum conversion,as specified in Appendix B of the Guidelines and Standards.Acceptable values for this are either the stream name that thisdatum conversion point applies to, or the term“COUNTYWIDE/COMMUNITY-BASED” if all the points in thetable are for a countywide conversion. Otherwise the stream nameis required.CONVFACTOR R Conversion factor at this specific point, not the average of allpoints. References the vertical datum conversion factor used inobserving surface elevations in different datums. The two mostcommon standard vertical datums in use nationwide are theNational Geodetic Vertical Datum (NGVD) of 1929 and the NorthAmerican Vertical Datum (NAVD) of 1988. NGVD 29 to NAVD88 conversion values range from roughly negative 1 foot or moreon the east coast to more than negative 4 feet on the west coast.LEN_UNIT R Length Units. This unit indicates the measurement system used forvertical datum conversion factor height. Normally, this would befeet. Acceptable values for this field are listed in theD_Length_Units table.SOURCE_CIT R Source Citation. Abbreviation used in the metadata file whendescribing the source information for the feature. The abbreviationmust match a value in L_Source_Cit.Table: S_Datum_Conv_Pt [October 2011]Field R/A Type Length/PrecisionScale (SHPOnly)Joined Spatial /Lookup Tables orDomainsDFIRM_ID R Text 6 N/AVERSION_ID R Text 11 N/ADATCONPTID R Text 25 N/AQUAD_NM A Text 50 N/AQUAD_COR A Text 2 D_QUAD_CORNERFROM_DATUM R Text 17 D_V_DATUMTO_DATUM R Text 17 D_V_DATUMWTR_NM A Text 26 N/ACONVFACTOR R Double Default N/ALEN_UNIT R Text 20 D_LENGTH_UNITSSOURCE_CIT R Text 11 L_SOURCE_CITGuidelines and Standards forFlood Risk Analysis and Mapping Page L-52 Section L.8 Requirements for FIRM Databases
Appendix LL.8.8 Table: S_FIRM_Pan [October 2011]This table is required for all Preliminary or Final FIRM Databases.The S_FIRM_Pan table contains information about the FIRM panel area. A spatial file with locationinformation also corresponds with this data table.The spatial entities representing FIRM panels are polygons. The polygon for the FIRM panelcorresponds to the panel neatlines. Panel boundaries are generally derived from USGS DOQQboundaries. As a result, the panels are generally rectangular. FIRM panels must not overlap or have gapswithin a study. In situations where a portion of a panel lies outside the jurisdiction being mapped, theuser must refer to the S_Pol_Ar table to determine the portion of the panel area where the FIRM Databaseshows the effective flood hazard data for the mapped jurisdiction.This information is needed for the FIRM Panel Index and the following tables in the FIS report: Listingof NFIP Jurisdictions, Levees, Incorporated Letters of Map Change, and Coastal Barrier ResourcesSystem Information.The S_FIRM_Pan table contains the following elements.DFIRM_ID R Study Identifier. For a single-jurisdiction flood risk project, the value iscomposed of the two-digit State FIPS code and the four-digit FEMA CIDcode (e.g., 480001). For a countywide flood risk project, the value iscomposed of the two-digit State FIPS code, the three-digit county FIPScode, and the letter “C” (e.g., 48107C). Within each FIRM Database, theDFIRM_ID value will be identical.VERSION_ID R Version Identifier. Identifies the product version and relates the feature tostandards according to how it was created.FIRM_ID R Primary key for table lookup. Assigned by table creator.ST_FIPS R State FIPS. This is the two-digit code that corresponds to the State FederalInformation Processing Standard (FIPS) code. This is a standard numberingsystem used by the Federal government, defined in FIPS Pub 6-4. Thesetwo numbers correspond to the first two digits of the panel number.Acceptable values for this field are listed in the D_State_FIPS table.PCOMM R Community or County Identification Number. This is the third through thesixth digits of the panel number. For community based maps thiscorresponds to the FEMA Community Identification number. Forcountywide maps this is the county (or county equivalent) FIPS code with a“C.”PANEL R Panel Number. This is seventh through the 10th digits in the complete panelnumber. This is assigned by the scale of the map and the position within thecommunity or county. The panel number scheme is described in detail inAppendix K of these Guidelines.SUFFIX R Map Suffix. This is the final digit in the complete panel number. This is aletter suffix at the end of the panel number. The map suffix is incrementedone letter every time the panel gets republished.FIRM_PAN R FIRM Panel Number. This is the complete 11-digit FIRM panel number,which is made up of ST_FIPS, PCOMM, PANEL, and SUFFIX. This is theFIRM panel number that is shown in the title block of the map.Guidelines and Standards forFlood Risk Analysis and Mapping Page L-53 Section L.8 Requirements for FIRM Databases
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Guidelines and Standards for FloodR
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Appendix LDate Affected Section(s)
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Page 17 and 18: Appendix LTable of ContentsL.1. Flo
Page 19 and 20: Appendix LL.8.17 Table: S_Levee [Oc
Page 21 and 22: Appendix LAppendix LDigital Data an
Page 23: Appendix LFIRM Table NameTableTypeT
Page 26 and 27: Appendix LTable L-2. Mapping Partne
Page 28 and 29: Appendix LFIR M Table NameAcquireB
Page 30: Appendix LAppendix are identified i
Page 33 and 34: Appendix Lfiles for lookup tables.
Page 35 and 36: Appendix LWhen possible, tables req
Page 37 and 38: Appendix L• Area spatial features
Page 39 and 40: Appendix LTopologyFilename(*_TOPOLO
Page 41 and 42: Appendix LIn the FIRM Database, flo
Page 43 and 44: Appendix Lfield length indicates th
Page 45 and 46: Appendix LL.4.8 Deliverables [Octob
Page 47 and 48: Appendix LL.5. Database Table Struc
Page 49 and 50: Appendix LL.7. Metadata Example for
Page 51 and 52: Appendix LFAN_VEL_MX A Alluvial Fan
Page 53 and 54: Appendix LTable: S_Base_Index [Octo
Page 55 and 56: Appendix Lboundary. Each BFE is rep
Page 57 and 58: Appendix LTable: S_CBRS [October 20
Page 59 and 60: Appendix LTIME_UNIT A Recording Int
Page 61 and 62: Appendix LL.8.6 Table: S_Cst_Tsct_L
Page 63 and 64: Appendix LCON_PD A Controlling Wave
Page 65 and 66: Appendix LTable: S_Cst_Tsct_Ln [Oct
Page 67: Appendix LL.8.7 Table: S_Datum_Conv
Page 71 and 72: Appendix LL.8.9 Table: S_Fld_Haz_Ar
Page 73 and 74: Appendix LTable: S_Fld_Haz_Ar [Octo
Page 75 and 76: Appendix LL.8.11 Table: S_Gage [Oct
Page 77 and 78: Appendix LL.8.12 Table: S_Gen_Struc
Page 79 and 80: Appendix LL.8.13 Table: S_HWM [Octo
Page 81 and 82: Appendix LL.8.14 Table: S_Hydro_Rea
Page 83 and 84: Appendix LL.8.16 Table: S_Label_Pt
Page 85 and 86: Appendix LL.8.17 Table: S_Levee [Oc
Page 87 and 88: Appendix LTable: S_Levee [October 2
Page 89 and 90: Appendix LL.8.19 Table: S_LOMR [Oct
Page 91 and 92: Appendix LL.8.20 Table: S_Nodes [Oc
Page 93 and 94: Appendix LL.8.21 Table: S_PFD_Ln [O
Page 95 and 96: Appendix LTable: S_PLSS_Ar [October
Page 97 and 98: Appendix LST_FIPS R State FIPS. Thi
Page 99 and 100: Appendix LL.8.24 Table: S_Profil_Ba
Page 101 and 102: Appendix LFLD_PROB3 A Description o
Page 103 and 104: Appendix LL.8.26 Table: S_Stn_Start
Page 105 and 106: Appendix LL.8.27 Table: S_Subbasins
Page 107 and 108: Appendix LL.8.28 Table: S_Submittal
Page 109 and 110: Appendix LField R/A TypeTable: S_Su
Page 111 and 112: Appendix LTable: S_Trnsport_Ln [Oct
Page 113 and 114: Appendix LField R/A TypeTable: S_Ts
Page 115 and 116: Appendix LTable: S_Wtr_Ar [October
Page 117 and 118: Appendix LTable: S_Wtr_Ln [October
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Appendix LXS_LTR A Cross Section Le
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Appendix LL.8.34 Table: S_Zone_AR [
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Appendix LH_DATUM R Horizontal Datu
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Appendix LField R/A TypeTable: Stud
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Appendix LIN_ID_DAT R Initial Ident
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Appendix LL.8.37 Table: L_Comm_Revi
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Appendix LSTRM_PRM A Storm Paramete
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Appendix LTable: L_Cst_Model [Octob
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Appendix LField R/A TypeTable: L_Cs
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Appendix LL.8.41 Table: L_ManningsN
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Appendix LL.8.43 Table: L_MT2_LOMR
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Appendix LL.8.44 Table: L_Mtg_POC [
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Appendix LL.8.45 Table: L_Pan_Revis
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Appendix LL.8.46 Table: L_Pol_FHBM
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Appendix LL.8.48 Table: L_Profil_La
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Appendix LL.8.49 Table: L_Source_Ci
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Appendix LL.8.50 Table: L_Summary_D
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Appendix LL.8.51 Table: L_Summary_E
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Appendix LL.8.52 Table: L_XS_Elev [
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Appendix LWSEL_FLDWY A Base Flood W
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Appendix LField R/A TypeTable: L_XS
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Appendix LV_DATUM R Vertical Datum.
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Appendix LL.10. Domain Tables [Octo
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Appendix L - Federal Emergency Management Agency

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