fis bfe practice morgantown

8/22/2019 FIS BFE Practice Morgantown

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Flood Map Users Workshop

June 5

th

, 2008

Charleston, WV

WELCOME

We Are Glad You Are Here!


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Paper FIRM review


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Using Paper FIRMs

Find correct FIRM panel using Flood Countyindex

Find property site on correct FIRM

Find location of development at site by scaling(measuring)

Identify nearest flood insurance risk zonedesignation and Floodway

Identify rounded base flood elevation on FIRM


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Flood County panel 38

Approximate Zone A

Zone Division Line

500 year

Floodway


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FLOODWAY SCHEMATIC

SURCHARGE

FLOODWAY

100 YEAR FLOODPLAIN

FLOODWAY

FRINGE

FLOODWAY + FLOODWAY FRINGE = 100 YEAR FLOODPLAIN

SURCHARGE NOT TO EXCEED 1.0 FEET

FLOODWAY

FRINGE


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Review Online FIRM Handout

www.msc.fema.gov. (not necessary to log on in order to use site.)

Product Catalog icon towards the top left of screen.

Under FEMA Issued Flood Maps click on Latest Available Flood Mapsto access Flood Insurance Studies (or floodway maps in thosecommunities where floodway maps are separate from the FIRM) click onFEMA issued Flood Insurance Studies

To access a particular map panel:

Under select a State, District or Territory, enter or scroll to West Virginia.

Under select a County, Parish, etc., enter or scroll to the appropriate

County. Under select a community, enter or scroll to the appropriate community.

*Important (for a county panel you must enter the county under community)

Click Find FEMA issued Flood Map (step 4 under select a community).
http://www.msc.fema.gov/http://www.msc.fema.gov/


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Online FIRMs continued

Viewing and Printing a FIRMETTE

When viewing an online FIRM panel you can navigate by using thetools (Zoom in & out and Pan) on the left hand side of the screen.Below the navigation buttons are the tools for making a FIRMette.When you have located the general area you want to print:

Click the Make a FIRMette button. Using the mouse Drag the green shaded box that appears in theupper left hand corner to the area you want to print on yourFIRMette and drop it.

Select the page size (usually 8 1/2 X 11).

Click the Scale or North Arrow boxes as appropriate and make any

adjustments necessary so the box covers only these items(otherwise part of the edge of the map adjacent to these boxes willappear on your FIRMette).


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Online FIRMs continued

Choose the format for your FIRMette (PDF or TIF)

Click the save button on the screen to the immediateleft of your new FIRMette.

Check the save this file to disk box , click ok.

Scroll to the file on your hard drive where you wantyour FIRMette saved (My Documents, desktop, etc.).

In the file name column, enter the title you want yourFIRMette saved as, click ok.

Navigate to the folder with saved FIRMette and openit, click on your FIRMette filename.

Before you print change printer setting to landscapeand turn off scale to fit or anything similar.


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Practice creating A FIRMette

Go to MSC.FEMA.gov

Follow instructor on your laptop

Find Willis Avenue bridge crossing Ann Run inBridgeport (Harrison County)

Site is on Williams Ave approximately 50 feetNorth of intersection with Cherry Street

Raise your hand if you fall behind or have

technical difficulties


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FMIT Practice

Bring up FMIT

Follow Instructor on your laptop

Find correct Map panel

Zoom, use slide bars to pan

Choose print area

Save FIRMette

Raise Your hand when you are ready toprint FIRMette


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FIRMette


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WV Flood Hazard Determination Tool

WWW.MAPWV.GOV/FLOOD

Click the

REDarrow to

launch


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Counties in WHITE have no

flood layer!!


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F.Pan

E. Back one level

of zoom

D. Zoom OUT to State

C. Zoom OUT

B. Zoom IN

A. Turn small state map

overview off & on

K. Zoom Scale

J. Elevation & Zone

(Star)

I. Print

H. Erase tool selection

G. Measuring Tool

(measures in feetor miles)

A B C D E F G H I J K


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Flood Hazard Determination Tool

Practice

Bring up tool (mapwv.gov/flood)

Follow Instructor on your laptop

Search function Find correct area

Use Zoom, pan, elevation tool, measuring

tool Raise Your hand when you are ready to

print


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306 FEET


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306 + 200 = 506 feet

199.97


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Firmette with hand measurements

Scale 1 = 400

1 = 500 Ft.

1


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Firmette with hand measurements

5/8 = 250 Ft.


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FIS profile


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Establish BFE on FIS Profile

Each block = 50 foot


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990

E

980

Cross section E


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990

E

980

Cross section E

3530


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Flood Frequency

Flood Frequency chance of flooding Chance of flooding

(years) in any given year over 30 years

500 0.2 out of 100 6%

100 1 out of 100 26%

50 2 out of 100 46%

10 10 out of 100 96%


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Floodway example

1/4 = 100

Floodway starts 100 foot from

road

Surveyor locates floodway

boundary by measuring from

center of road to edge of

floodway


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Map exercise 1.5


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Map Exercise 2

199 Smith St. Bridgeport 26330Permit for new structure 100 feet south ofSmith Street, 50 feet west of Pennsylvania

Avenue

1. Panel #

2. Flood Zone3. In Floodway?

4. Estimate BFE from Map

5. BFE from Flood Insurance Study


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Map Exercise 3

100 foot West of Intersection of Blue Horizon(19) and Mason Dixon Hwy (7) in Pursglove,

Monongalia County

1. Panel #

2. Flood Zone

3. In Floodway?

4. BFE


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IF IN DOUBT, ITS NOT OUT!

The map is merely a tool. If the area in questionis too close to the boundary to confidentlydetermine location relative to the flood hazardthen request elevation data.

A site plan with elevation data works best. Youwill need at least BFE and the LAG to theproposed foundation.

Floodway on the site? Require the Surveyor toscale the floodway Boundary onto the site plan.


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Floodway Boundary

BFE863 LAG 862.25

Signed:______________ Dated:___9/1/07__ ROAD NAME


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Please Return:

Flood County Map Packet & Flood

Insurance Study

Engineers Scale

(we need them for Surveyor workshop

tomorrow)

THANK YOU!


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GIS layer availability

Uncertified Countywide Digital Flood Themesavailable from WVU GIS Tech Center(Also knows as

DFIRM Lite layers) available for:

Barbour, Monongalia, Randolph, Taylor

ftp://ftp.wvgis.wvu.edu/pub/Clearinghouse/water_resources/DFIRM-lite/