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For a countywide Flood Risk Project, the value is composed of the two-digit State FIPS code, the three-digit county FIPS code and the letter \u201cC\u201d (e.g., 48107C). Within each FIRM Database, the DFIRM_ID value will be identical.VERSION_ID R Version Identifier. Identifies the product version and relates the feature to standards according to how it was created.XS_LN_ID R Primary key for table lookup. Assigned by table creator.WTR_NM R Surface Water Feature Name. This is the name of the stream or water body.STREAM_STN R1 Stream Station. This is the measurement along the profile baseline to the cross section location. This value is used in the FDTs and profiles.START_ID R1 Station Start Identification. This is the foreign key to the S_Stn_Start layer. The station start describes the origin for the measurements in the STREAM_STN field. This value is used in the FDTs and profiles.XS_LTR A Cross Section Letter. This is the letter or number that is assigned to the cross section on the hardcopy FIRM and in the FIS Report. This field is populated when the cross section is lettered. XS_LN_TYP R1 Cross-Section Line Type. This attribute should contain \u2018LETTERED, MAPPED\u2019 for cross sections that are shown on the hardcopy FIRM and are given a letter. If the cross section will be shown on the FIRM but not lettered, the attribute should contain \u2018NOT LETTERED, MAPPED\u2019 to indicate that it is a cross section shown on the hardcopy FIRM, but not on the FDTs or profiles. If the cross section will not be shown on the hardcopy FIRM, this attribute should contain \u2018NOT LETTERED, NOT MAPPED\u2019 to indicate that the cross section is part of the backup data for the Flood Risk Project but is not shown on the FIRM. All cross sections used in the development of effective hydraulic models shall be stored in this table, regardless of the flood hazard zone depicted on the effective panels. Acceptable values for this field are listed in the D_XS_Ln_Typ table.WSEL_REG R Regulatory Water Surface Elevation for the 1% annual-chance Flood Event. This is the regulatory water-surface elevation for the 1% annual-chance flood event in the stream channel at this cross section, this should include backwater elevations. In the case of levee(s) associated with a cross section, it is assumed that the levee(s) holds. For cross sections in the coastal floodplain, this value should be coded \u201c-8888\u201d. For cross sections in the combined coastal and riverine floodplain, this value should reflect the results of the combined rate of occurrence analysis. For cross sections at confluences where a single water surface elevation cannot be determined this value should be coded as \u201c-8888\u201d. This field is stored here and in L_XS_Elev to simplify annotation of the FIRM panel water-surface elevation at this cross section. This value and the corresponding value in L_XS_Elev should match.STRMBED_EL R Streambed Elevation. This is the water-surface elevation for the thalweg or the lowest point in the main channel. This value is used in the profiles.LEN_UNIT R Water-Surface and Streambed Elevation Units. This unit indicates the measurement system used for the water-surface and streambed elevations. Normally, this would be feet. Acceptable values for this field are listed in the D_Length_Units table.V_DATUM R Vertical Datum. The vertical datum indicates the reference surface from which the flood and streambed elevations are measured. Normally, this would be NAVD88. Acceptable values for this field are listed in the D_V_Datum table.PROFXS_TXT A Profile Cross Section Text. This field stores user-defined cross section text that is plotted on the profile. This field is only required to be populated if and when the data can be exported from RASPLOT in FIRM Database Technical Reference format.MODEL_ID R Model Identifier. This field stores the feature\u2019s identifier that was used during hydrologic and hydraulic modeling. This field provides a link between the hydrologic or hydraulic modeling and this spatial file. This field should be populated with the name of the of the submitted model, Ex: River_Run.prjSEQ A Sequence. This is the order in which the cross sections plot on the profile. This value is needed for profiles. This field is only required if and when the data can be exported from RASPLOT in FIRM Database Technical Reference format.SOURCE_CIT R Source Citation. Abbreviation used in the metadata file when describing the source information for the feature. The abbreviation must match a value in L_Source_Cit.",
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 "copyrightText": "Federal Emergency Management Agency\nFederal Insurance and Mitigation Administration\n500 C Street, S.W.\nWashington\nDistrict of Columbia\n20472\nUSA\n1-877-336-2627\nfema-riskmap-ithelp@fema.dhs.gov",
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