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Tornado Damage Assessment Report - page 10 / 21

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RESULTS OF URBAN TORNADO DAMAGE ASSESSMENT IN CHARLES COUNTY, SOUTHERN MARYLAND

The Urban Tornado Damage Assessment focused primarily on the Town of La Plata where most of the damage, in the urban context, occurred. The assessment was facilitated by a visit to each distinct site; that is, each

area that appeared to be isolated from other sites (not contiguous) in so far as tree damage was concerned, within the urban limits. The procedure

involved making an ocular estimate of the

right-of-way.

Table

1

shows

a

summary

of

damage, mainly from the public the damage procedures observed,

while Table assessment.

2 shows a For each

summary of the results of the actual damage type, the estimates are shown

damage in 10 percent

classes.

Appendix

I-Figures

1

to

13

contains

a

series

of

photographs

that

show some shows the

of the damages observed.

map

coordinates

and,

where

The caption of each photograph also

possible,

a

more

specific

location

where the photograph was taken.

Appendix II shows a section of the DOQQ

coverage of La Plata with the areas of damage denoted by the numbered polygons [See ADC Map 17, page 21].

1.

For each location, draw ‘representative polygons’ (Estimate point coordinates of boundaries on map in relation to the actual position on the ground).

2.

For each polygon, estimate percent (%) of area damaged in terms of the following ranges:

Table 1.

Summary of the Damage Procedures Observed.

1=

0 – 25%,

– 75%

,

3=

>50

4=

50%,

2

=

>25

>75

100%

Cracks and Seams

Defoliation

Broken Branches

Loss of Apical Dominance

Damage Types Assessed

Uprooting of Trees

Broken Boles

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