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["Henrico County\nBase Flood Elevation (BFE) Interpolation"]
[]
[null,"Directions: Fill in each blue cell below and submit the completed version with your Floodplain Development Permit application. This is an approximate BFE. The Floodplain Administrator may determine that the BFE is different than what this form indicates.  The Floodplain Administrator may require a flood study be conducted or updated to determine a more accurate BFE. \n "]
[]
["2023-07-14"]
[]
["Property Address",null,null,null,null,null,null,null,null,null,"= required input data"]
["GPIN"]
[]
["NOTE: If you get an error message about this sheet being protected when trying to select between Yes or No, just select OK. When the message goes away, you will be able to adjust the values based on the selection you made.","Upstream Cross-Section Elevation",null,null,"Downstream Cross-Section Elevation",null,null,null,null,null,"x","y"]
[null,400,null,null,375,null,null,null,null,null,{"$f":"IF(K15=TRUE,B20,0)","v":0},{"$f":"B11","v":400},"Upstream Cross-Section"]
[null,null,null,null,null,null,null,null,null,null,{"$f":"IF(K15=TRUE,0,B26)","v":375},{"$f":"B29","v":388.28125},"At Property Location"]
[null,"Total Distance Between Cross-Sections",null,null,null,null,null,null,null,null,{"$f":"IF(K15=TRUE,B14+B20,B14)","v":800},{"$f":"E11","v":375},"Downstream Cross-Section"]
[null,800]
[null,null,null,null,null,null,null,null,null,null,false,true]
[null,"Is the project location beyond the limit of the study?"]
[]
[]
[null,"Distance Beyond Last Cross-Section"]
[]
[]
[null,"Slope of BFE"]
[null,{"$f":"(B11-E11)/B14","v":3.125E-2}]
[]
[null,"Distance from Upstream Cross-Section"]
[null,375]
[]
[null,"Approximate BFE at Project Location"]
[null,{"$f":"IF(K15=TRUE,B11+B23*B20,B11-B26/B14*(B11-E11))","v":388.28125}]
[]
[]
["Directions Continued:"]
["1. Locate the property on the Henrico County Flood Zone and Dam Safety Information Map using the Search Tool. Search can be done using the property address or GPIN."]
["2. Identify the nearest upstream cross-section from the site and insert the elevation value identified on the map above. In general, the upstream cross-section will have a higher elevation."]
["3. Identify the nearest downstream cross-section from the site and insert the elevation value identified on the map above. In general, the downstream cross-section will have a lower elevation."]
["4. Use the Measure Tool to measure the distance (in feet) between the two cross-sections, following the stream line as closely as possible. Insert measured value above. This should not be a straight line between cross-sections unless the stream line is straight. "]
["5. Using the Draw Tool, draw a line through the proposed development site to the stream line, perpendicular to the stream. Measure the distance between that line and the upstream cross-section, following the stream line as closely as possible. Insert measured value above. This should not be a straight line unless the stream line is straight. "]