Description

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FEMA DFIRM (Digital Flood Insurance Rate Map) floodplain effective December 18, 2012, created for Boulder County and all municipalities within under the direction of the FEMA Map Modernization project. This data supercedes all other flood data.Per FEMA: Data included on this CD-ROM represents Final Flood Insurance Rate Map (FIRM) data that has been published as effective FIRM or DFIRM information. The data are the official and legal representation of the effective flood zones.Further edits include two LOMRs dated after 12/18/12.Boulder County added a field, "Regulating Entity" to distinguish this from Boulder County regulatory floodplain.

Dataset Attributes

  • OBJECTID
    Number
  • DFIRM_ID
    Text
  • VERSION_ID
    Text
  • FLD_AR_ID
    Text
    {"value"=>" ", "count"=>1950} (), {"value"=>"10525", "count"=>137} (), {"value"=>"9856", "count"=>44} (), {"value"=>"8504", "count"=>25} (), {"value"=>"10042", "count"=>24} (), {"value"=>"10148", "count"=>18} (), {"value"=>"9763", "count"=>15} (), {"value"=>"8422", "count"=>13} (), {"value"=>"8881", "count"=>12} (), {"value"=>"8889", "count"=>11} ()
  • STUDY_TYP
    Text
  • FLD_ZONE
    Text
    {"value"=>"X", "count"=>3671, "code"=>"X"} (), {"value"=>"AE", "count"=>801, "code"=>"AE"} (), {"value"=>"A", "count"=>76, "code"=>"A"} (), {"value"=>"AO", "count"=>26, "code"=>"AO"} (), {"value"=>"AH", "count"=>17, "code"=>"AH"} ()
  • ZONE_SUBTY
    Text
    {"value"=>"AREA OF MINIMAL FLOOD HAZARD", "count"=>2065, "code"=>"2000"} (), {"value"=>"0.2 PCT ANNUAL CHANCE FLOOD HAZARD", "count"=>1587, "code"=>"0500"} (), {"value"=>"FLOODWAY", "count"=>109, "code"=>"1100"} (), {"value"=>"AREA WITH REDUCED FLOOD RISK DUE TO LEVEE", "count"=>19, "code"=>"1000"} ()
  • SFHA_TF
    Text
    {"value"=>"F", "count"=>1763, "code"=>"F"} (), {"value"=>"T", "count"=>919, "code"=>"T"} ()
  • STATIC_BFE
    Number
    -9999 to 5529
  • V_DATUM
    Text
    {"value"=>"NAVD88", "count"=>11, "code"=>"NAVD88"} ()
  • DEPTH
    Number
    -9999 to 2
  • LEN_UNIT
    Text
    {"value"=>"FEET", "count"=>37, "code"=>"FEET"} ()
  • VELOCITY
    Number
    -9999 to 0
  • VEL_UNIT
    Text
  • AR_REVERT
    Text
  • AR_SUBTRV
    Text
  • BFE_REVERT
    Number
    -9999 to 0
  • DEP_REVERT
    Number
    -9999 to 0
  • DUAL_ZONE
    Text
  • SOURCE_CIT
    Text
    {"value"=>"STUDY2", "count"=>1745} (), {"value"=>"STUDY1", "count"=>1295} (), {"value"=>"STUDY6", "count"=>539} (), {"value"=>"STUDY4", "count"=>231} (), {"value"=>"LOMC33", "count"=>167} (), {"value"=>"LOMC30", "count"=>99} (), {"value"=>"LOMC40", "count"=>44} (), {"value"=>"LOMC43", "count"=>42} (), {"value"=>"STUDY7", "count"=>36} (), {"value"=>"LOMC20", "count"=>33} ()
  • REGULATING_ENTITY
    Text
    {"value"=>"FEMA", "count"=>4591} ()
  • SHAPE
    Number
  • SHAPE.STArea()
    Number
  • SHAPE.STLength()
    Number

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