VOLUME 4 OF 4
Cobb County
COBB COUNTY, GEORGIA AND INCORPORATED AREAS
COMMUNITY NAME COMMUNITY NUMBER ACWORTH, CITY OF 130053 AUSTELL, CITY OF 130054 COBB COUNTY 130052 (UNINCORPORATED AREAS) KENNESAW, CITY OF 130055 MARIETTA, CITY OF 130226 POWDER SPRINGS, CITY OF 130056 SMYRNA, CITY OF 130057
REVISED: MARCH 4, 2013
FLOOD INSURANCE STUDY NUMBER 13067CV004C NOTICE TO FLOOD INSURANCE STUDY USERS
Communities participating in the National Flood Insurance Program have established repositories of flood hazard data for floodplain management and flood insurance purposes. This Flood Insurance Study (FIS) report may not contain all data available within the Community Map Repository. Please contact the Community Map Repository for any additional data.
The Federal Emergency Management Agency (FEMA) may revise and republish part or all of this FIS report at any time. In addition, FEMA may revise part of this FIS report by the Letter of Map Revision process, which does not involve republication or redistribution of the FIS report. Therefore, users should consult with community officials and check the Community Map Repository to obtain the most current FIS report components.
Initial Countywide FIS Effective Date: August 18, 1992
Revised Countywide FIS Effective Date: December 16, 2008
Revised Countywide FIS Effective Date: March 4, 2013
TABLE OF CONTENTS
Page
1.0 INTRODUCTION 1
1.1 Purpose of Study 1
1.2 Authority and Acknowledgments 1
1.3 Coordination 3
2.0 AREA STUDIED 5
2.1 Scope of Study 5
2.2 Community Description 10
2.3 Principal Flood Problems 10
2.4 Flood Protection Measures 11
3.0 ENGINEERING METHODS 12
3.1 Hydrologic Analyses 13
3.2 Hydraulic Analyses 42
3.3 Vertical Datum 48
4.0 FLOODPLAIN MANAGEMENT APPLICATIONS 49
4.1 Floodplain Boundaries 49
4.2 Floodways 50
5.0 INSURANCE APPLICATIONS 107
6.0 FLOOD INSURANCE RATE MAP 109
7.0 OTHER STUDIES 109
8.0 LOCATION OF DATA 111
9.0 BIBLIOGRAPHY AND REFERENCES 111
i
TABLE OF CONTENTS - VOLUME I
Page
FIGURES
Figure 1 – Floodway Schematic 107
TABLES
Table 1 – Redelineated Streams 8-9
Table 2 – Summary of Discharges 20-41
Table 3 – Summary of Stillwater Elevations 42
Table 4 – Manning’s “n” Values 45-47
Table 5 – Vertical Datum Conversion 48
Table 6 – Floodway Data 52-106
Table 7 – Community Map History 110
TABLE OF CONTENTS - VOLUME II
EXHIBITS
Exhibit 1 - Flood Profiles Allatoona Branch Panel 01P Allatoona Creek Panels 02P-12P Bishop Creek Panels 13P-14P Blackjack Creek Panels 15P-16P Butler Creek Panels 17P-22P Buttermilk Creek Panels 23P-26P Campground Creek Panels 27P-28P Chattahoochee River Panels 29P-33P Clay Branch Panels 34P-35P Concord Creek Panels 36P-37P Cooper Lake Creek Panels 38P-39P Davis Branch Panel 40P Due West Creek Panels 41P-43P Eastside Creek Panel 44P Elizabeth Branch Panels 45P-46P Favor Creek Panels 47P-48P Florence Branch Panels 49P-50P Gilmore Creek Panel 51P Gordon Branch Panel 52P
ii
TABLE OF CONTENTS - VOLUME II - continued
EXHIBITS - continued
Exhibit 1 - Flood Profiles - continued Gordon Creek Panels 53P-54P Gothards Creek Panels 55P-56P Harmony Grove Creek Panels 57P-58P Hope Creek Panels 59P-60P Laurel Creek Panels 61P-64P Liberty Hill Branch Panels 65P-67P Little Allatoona Creek Panels 68P-71P Little Noonday Creek Panels 72P-75P Lost Mountain Creek Panel 76P Luther Ward Branch Panels 77P-79P
TABLE OF CONTENTS - VOLUME III
EXHIBITS - continued
Exhibit 1 - Flood Profiles - continued Milam Branch Panels 80P-82P Mill Creek No.1 Panels 83P-84P Mill Creek No.2 Panels 85P-86P Morgan Lake Tributary Panel 87P Mud Creek Panels 88P-94P Nickajack Creek Panels 95P-100P Noonday Creek Panels 101P-110P Noonday Creek Tributary No. 1 Panel 111P Noonday Creek Tributary No. 3 Panels 112P-114P Noonday Creek Tributary No. 4 Panels 115P-117P Noonday Creek Tributary No. 6 Panels 118P Noonday Creek Tributary No. 7 Panels 119P-120P Noses Creek Panels 121P-132P Olley Creek Panels 133P-137P Olley Creek Tributary Panel 138P Pine Branch Panel 139P Pine Creek Panels 140P-141P Piney Grove Creek Panels 142P-145P Pitner Creek Panels 146P-147P Poorhouse Creek Panels 148P-149P Poplar Creek Panels 150P-151P Powder Springs Creek Panels 152P-158P Powers Branch Panels 159P-160P
iii
TABLE OF CONTENTS - VOLUME IV
EXHIBITS - continued
Exhibit 1 - Flood Profiles - continued Powers Creek Panel 161P Proctor Creek Panel 162P-164P Queen Creek Panels 165P-169P Robertson Creek Panels 170P-171P Rottenwood Creek Panels 172P-177P Rubes Creek Panels 178P-181P Rubes Creek Tributary Panel 182P Sewell Mill Creek Panels 183P-188P Smyrna Branch Panels 189P-190P Sope Branch Panel 191P Sope Creek Panels 192P-201P Sweat Mountain Creek Panels 202P-203P Sweetwater Creek Panels 204P-206P Tanyard Creek Panels 207P-210P Tate Creek Panels 211P-212P Terrell Branch Panels 213P-214P Theater Branch Panels 215P-216P Thompson Creek Panel 217P Timber Ridge Branch Panel 218P Trickum Creek Panels 219P-221P Trickum Creek Tributary Panels 222P-223P Vinings Branch Panel 224P Ward Creek Panels 225P-229P Westside Branch Panel 230P Wildhorse Creek Panels 231P-232P Wildwood Branch Panel 233P Willeo Creek Panels 234P-236P
Exhibit 2 - Flood Insurance Rate Map Index Flood Insurance Rate Map
iv
910 910
1% ANNUAL CHANCE BACKWATER EFFECT FROM LAKE ACWORTH
(BACKWATER EFFECTS FOR 10%, 2% AND 0.2% ANNUAL CHANCE FLOODS UNKNOWN)
900 900
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STREAM BED M
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A B C D E CROSS SECTION LOCATION L
A
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820 E 0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 D
E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH LAKE ACWORTH 162P 940 940
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930 R 930
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STREAM BED M
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H I J K L CROSS SECTION LOCATION L
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850 E 6500 7000 7500 8000 8500 9000 9500 10000 10500 11000 11500 12000 12500 13000 D
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F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH LAKE ACWORTH 163P 980 980
970 R 970
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890 E 13000 13500 14000 14500 15000 15500 16000 16500 17000 17500 18000 18500 19000 19500 D
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F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH LAKE ACWORTH 164P 820 820
1% ANNUAL CHANCE BACKWATER EFFECTS FROM CHATTAHOOCHEE RIVER
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STREAM BED M A
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A B C D E G CROSS SECTION LOCATION L
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0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH NICKAJACK CREEK 165P 850 850
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STREAM BED M A
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H J CROSS SECTION LOCATION L
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760 E
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6000 6500 7000 7500 8000 8500 9000 9500 10000 10500 11000 11500 12000 12500 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH NICKAJACK CREEK 166P 920 920
910 910
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STREAM BED M A
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K L CROSS SECTION LOCATION L
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830 E
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11500 12000 12500 13000 13500 14000 14500 15000 15500 16000 16500 17000 17500 18000 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH NICKAJACK CREEK 167P 990 990
980 980
970 970 S
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STREAM BED M A
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M N O CROSS SECTION LOCATION L
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900 E
D
14500 15000 15500 16000 16500 17000 17500 18000 18500 19000 19500 20000 20500 21000 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH NICKAJACK CREEK 168P 1030 1030
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10% ANNUAL CHANCE FLOOD R
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STREAM BED M A
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Q S T U CROSS SECTION LOCATION L
A
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940 E
D
16500 17000 17500 18000 18500 19000 19500 20000 20500 21000 21500 22000 22500 23000 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH NICKAJACK CREEK 169P
840 840 1% ANNUAL CHANCE BACKWATER FROM CHATTAHOOCHEE RIVER
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A STREAM BED M
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A B CROSS SECTION LOCATION L
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750 E
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0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 11000 12000 13000 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH CHATTAHOOCHEE RIVER 172P
970 970 1% ANNUAL CHANCE BACKWATER EFFECTS FROM SOPE CREEK
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10% ANNUAL CHANCE FLOOD R
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STREAM BED M A
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A B C D CROSS SECTION LOCATION L
A
R
880 E
D
0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH SOPE CREEK 183P 980 980
K
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970 E 970
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A
T
N
S
E I A A
E
M
G
R
E
,
A
910 910 G
Y
D
A
E
T
LEGEND N
T
N
A 0.2% ANNUAL CHANCE FLOOD A
R
U
M
O
O 1% ANNUAL CHANCE FLOOD Y P
R
C
C
O
N
2% ANNUAL CHANCE FLOOD C
B 900 E
N
G
I
B
10% ANNUAL CHANCE FLOOD R
D
O
E
N
C
STREAM BED M A
E
F G H CROSS SECTION LOCATION L
A
R
890 E
D
6500 7000 7500 8000 8500 9000 9500 10000 10500 11000 11500 12000 12500 13000 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH SOPE CREEK 184P 1020 1020
1010 1010
D
R
N
O
T
N
A
C
D
L
S
K 1000 O 1000
E
E
E
L
I
R
F
C
O
L
L
R I
P
M
L
D 990 990 L
E
O
W
O
E
L
S
F
)
8
8
D
V 980 980
A
N
(
T
E
E
F
N
I
N
O
I
T 970 970
A
V
E
L
E
Y
C
960 960 N
E
G
A
T
N
S
E N A A
E
M
G
R
E
,
A
950 950 G
Y
D
A
E
T
LEGEND N
T
N
A 0.2% ANNUAL CHANCE FLOOD A
R
U
M
O
O 1% ANNUAL CHANCE FLOOD Y P
R
C
C
O
N
2% ANNUAL CHANCE FLOOD C
B 940 E
N
G
I
B
10% ANNUAL CHANCE FLOOD R
D
O
E
N
C
STREAM BED M A
E
J K L M CROSS SECTION LOCATION L
A
R
930 E
D
13000 13500 14000 14500 15000 15500 16000 16500 17000 17500 18000 18500 19000 19500 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH SOPE CREEK 185P 1040 1040
1030 D 1030
R
S
Y
G
A
N
I
W
R
E
P
V
I
S
R
Y
D
L
L
S
K 1020 O 1020
H
E
E
E
L
I
R
F
C
O
L
L
R I
P
M
L
D 1010 1010 L
E
O
W
O
E
L
S
F
)
8
8
D
V 1000 1000
A
N
(
T
E
E
F
N
I
N
O
I
T 990 990
A
V
E
L
E
Y
C
980 980 N
E
G
A
T
N
S
E T A A
E
M
G
R
E
,
A
970 970 G
Y
D
A
E
T
LEGEND N
T
N
A 0.2% ANNUAL CHANCE FLOOD A
R
U
M
O
O 1% ANNUAL CHANCE FLOOD Y P
R
C
C
O
N
2% ANNUAL CHANCE FLOOD C
B 960 E
N
G
I
B
10% ANNUAL CHANCE FLOOD R
D
O
E
N
C
STREAM BED M A
E
O P Q R S CROSS SECTION LOCATION L
A
R
950 E
D
19500 20000 20500 21000 21500 22000 22500 23000 23500 24000 24500 25000 25500 26000 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH SOPE CREEK 186P 1070 1070
R
D
D
1060 R 1060
T
T
S
N
T
E
I
L
R
R
O
R
T
F
E
K
P
T
P
A
I
N
O
L
O
C
T
M
S
S
K
D
O
1050 E 1050
E
I
E
P
P E
L
I
R
F
C
O
L
L
R I
P
M
L
D 1040 1040 L
E
O
W
O
E
L
S
F
)
8
8
D
V 1030 1030
A
N
(
T
E
E
F
N
I
N
O
I
T 1020 1020
A
V
E
L
E
Y
C
1010 1010 N
E
G
A
T
N
S
E Y A A
E
M
G
R
E
,
A
1000 1000 G
Y
D
A
E
T
LEGEND N
T
N
A 0.2% ANNUAL CHANCE FLOOD A
R
U
M
O
O 1% ANNUAL CHANCE FLOOD Y P
R
C
C
O
N
2% ANNUAL CHANCE FLOOD C
B 990 E
N
G
I
B
10% ANNUAL CHANCE FLOOD R
D
O
E
N
C
STREAM BED M A
E
U V W X CROSS SECTION LOCATION L
A
R
980 E
D
26000 26500 27000 27500 28000 28500 29000 29500 30000 30500 31000 31500 32000 32500 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH SOPE CREEK 187P 1110 1110
Y
D
U
1100 T 1100
S
T T T
D
N
C C C
E
L
L
I
A A A
I I I
N
A
H H H
E
T
T T T
R
E
N N N
A
D
Y Y Y
K
F
C C C
O
S
K
1090 T 1090
I
E
E
E
M
L
I
I
R
L
F
C
O
L
L
R I
P
M
L
D 1080 1080 L
E
O
W
O
E
L
S
F
)
8
8
D
V 1070 1070
A
N
(
T
E
E
F
N
I
N
O
I
T 1060 1060
A
V
E
L
E
Y
C
1050 1050 N
E
G
A
T
N
S
E
A A
E
M
G
R
E
,
A
1040 1040 G
Y
D
A
E
T
LEGEND N
T
N
A 0.2% ANNUAL CHANCE FLOOD A
R
U
M
O
O 1% ANNUAL CHANCE FLOOD Y P
R
C
C
O
N
2% ANNUAL CHANCE FLOOD C
B 1030 E
N
G
I
B
10% ANNUAL CHANCE FLOOD R
D
O
E
N
C
STREAM BED M A
E
Z AA AB CROSS SECTION LOCATION L
A
R
1020 E
D
32500 33000 33500 34000 34500 35000 35500 36000 36500 37000 37500 38000 38500 39000 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH SOPE CREEK 188P 990 990 1% ANNUAL CHANCE BACKWATER EFFECTS FROM THEATER BRANCH
0
E
H
8
H
980 V 980
T I 2
E
/
C
I
R
C
N Y
T
W
D
A
A A
S
L
E
R
B
A
W
P
C
B
B E
H
N
A
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E
I
T
T
C
E
U
S
H
U
T
I
L
H
O
E
F V
A
T
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T
A
N
U
L
H
A
S
O
O
T 970 T 970
C
H
S
E
S
C
L
I
N
F
A
O
R
B
R
P
A
N
D 960 960 R
Y CULVERT O
O M
L S
F
)
8
8
D
V 950 950
A
N
(
T
E
E
F
N
I
N
O
I
T 940 940
A
V
E
L
E CULVERT
Y
C
930 930 N
E
G
A
H
T
N
S
E G A A
E
M
G
R
E
,
A
920 920 G
Y
D
A
E
T
LEGEND N
T
N
A 0.2% ANNUAL CHANCE FLOOD A
R
U
M
O
O 1% ANNUAL CHANCE FLOOD Y P
R
C
C
O
N
2% ANNUAL CHANCE FLOOD C
B 910 E
N
G
I
B
10% ANNUAL CHANCE FLOOD R
D
O
E
D N
C
STREAM BED M A
E
A B C E F CROSS SECTION LOCATION L
A
R
900 E
D
0 400 800 1200 1600 2000 2400 2800 3200 3600 4000 4400 4800 5200 E
F STREAM DISTANCE IN FEET ABOVE CONFLUNCE WITH THEATER BRANCH 189P 1030 1030
T
S
A
E
H
T
Y
T
S
D
U
A
U
O
E
T
E
1020 S 1020
H
S
C
T
T
A
E
D
U
L
E
E
O
P
L
R
I
S
T
A
W
T
S
E
T
E I
E
S
E
V
D
G
R
K
F
T N
R
I
S O
A
R
S
P
P T 1010 K 1010
H
I
E
S
N
C
M
L
A
I
R
I
L
B N
E
F
D
A
W
O
R
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B
R
P
P
A
N
D 1000 1000 R
Y
O
O M
L S
F
)
8
8
D
V 990 990
A
N
( CULVERT
T
E
E
F
N
I
N
O
I
T 980 980
A
V
E CULVERT
L
E
Y
C
970 970 N
E
G
A
T
N
S
E
A A
E
M
G
R
CULVERT E
,
A
960 960 G
Y
D
A
E
T
LEGEND N
T
N
A 0.2% ANNUAL CHANCE FLOOD A
R
U
M
O
O 1% ANNUAL CHANCE FLOOD Y P
R
C
C
O
N
2% ANNUAL CHANCE FLOOD C
B 950 E
N
G
I
B
10% ANNUAL CHANCE FLOOD R
D
O
E
M O N
C
STREAM BED M A
E
I J K L N CROSS SECTION LOCATION L
A
R
940 E
D
4800 5200 5600 6000 6400 6800 7200 7600 8000 8400 8800 9200 9600 10000 E
F STREAM DISTANCE IN FEET ABOVE CONFLUNCE WITH THEATER BRANCH 190P
870 870 1% ANNUAL CHANCE BACKWATER EFFECTS FROM CHATTACHOOCHEE RIVER
R
E
H
860 V 860
I
T
I
R
R
W
H H H H
D
E
E T T T T
E
S
A A A A
H
C
N
P P P P
C
N
T T T T
M
O
E
R R R R
U
O
U
L
L A A A A
H
F
O
C C C C
A
N C
T
S
O 850 T 850
C
A
E
H
L
C
I
K
F
E
E
O
R
R
C
P
E
P
D
840 840 O
O
S
O
L
F
)
8
8
D
V 830 830
A
N
(
T
E
E
F
N
I
N
O
I
T 820 820
A
V
E
L
E
Y
C
810 810 N
E
G
A
T
N
S
E D E A A
E
M
G
R
E
,
A
800 800 G
Y
D
A
E
T
LEGEND N
T
N
A 0.2% ANNUAL CHANCE FLOOD A
R
U
M
O
O 1% ANNUAL CHANCE FLOOD Y P
R
C
C
O
N
2% ANNUAL CHANCE FLOOD C
B 790 E
N
G
I
B
10% ANNUAL CHANCE FLOOD R
D
O
E
N
C
STREAM BED M A
E
A B C CROSS SECTION LOCATION L
A
R
780 E
D
0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH CHATTAHOOCHEE RIVER 192P 910 910
900 900
D
R
L
L
I
M
R
E
P
A
P 890 890 S
E
L
I
K
F
E
E
O
R
R
C
P
E
P
D
880 880 O
O
S
O
L
F
)
8
8
D
V 870 870
A
N
(
T
E
E
F
N
I
N
O
I
T 860 860
A
V
E
L
E
Y
C
850 850 N
E
G
A
T
N
S
E K A A
E
M
G
R
E
,
A
840 840 G
Y
D
A
E
T
LEGEND N
T
N
A 0.2% ANNUAL CHANCE FLOOD A
R
U
M
O
O 1% ANNUAL CHANCE FLOOD Y P
R
C
C
O
N
2% ANNUAL CHANCE FLOOD C
B 830 E
N
G
I
B
10% ANNUAL CHANCE FLOOD R
D
O
E
N
C
STREAM BED M A
E
F G H I J CROSS SECTION LOCATION L
A
R
820 E
D
6000 6500 7000 7500 8000 8500 9000 9500 10000 10500 11000 11500 12000 12500 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH CHATTAHOOCHEE RIVER 193P 950 950
K
E
E
R
C
D
R P
940 940
O
L
L
H
E
S
I
W
B
S
F
O
O
R
E
R
C
E
N
W
E
S
O
U
930 930 E
L
L
F
L
I
N
K
O
F
E
C
E
O
R
R
C
P
E
P
D
920 920 O
O
S
O
L
F
)
8
8
D
V 910 910
A
N
(
T
E
E
F
N
I
N
O
I
T 900 900
A
V
E
L
E
Y
C
890 890 N
E
G
A
T
N
S
E O A A
E
M
G
R
E
,
A
880 880 G
Y
D
A
E
T
LEGEND N
T
N
A 0.2% ANNUAL CHANCE FLOOD A
R
U
M
O
O 1% ANNUAL CHANCE FLOOD Y P
R
C
C
O
N
2% ANNUAL CHANCE FLOOD C
B
E
870 N
G
I
B
10% ANNUAL CHANCE FLOOD R
D
O
E
N
C
STREAM BED M A
E
L M N CROSS SECTION LOCATION L
A
R
860 E
D
12500 13000 13500 14000 14500 15000 15500 16000 16500 17000 17500 18000 18500 19000 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH CHATTAHOOCHEE RIVER 194P 960 960
K
E
K
F F 950 R R 950
E
E
O O
D D
R
E
H H
E E
S C S
R
T T
L L
C C
C
L
L L
A A
N N
I L I
E I
P P
E E
H H
D T T
U U
M
I
R R
N L L N
S
L
F F
A A
A A
L
T
I I
N N
C C
E
S
D D
O O
A
W
N N
S
C C
I I
E
E
940 940 E
S
L
I
K
F
E
E
O
R
R
C
P
E
P
D
930 930 O
O
S
O
L
F
)
8
8
D
V 920 920
A
N
(
T
E
E
F
N
I
N
O
I
T 910 910
A
V
E
L
E
Y
C
900 900 N
E
G
A
T
N
S
E
A A
E
M
G
R
E
,
A
890 890 G
Y
D
A
E
T
LEGEND N
T
N
A 0.2% ANNUAL CHANCE FLOOD A
R
U
M
O
O 1% ANNUAL CHANCE FLOOD Y P
R
C
C
O
N
2% ANNUAL CHANCE FLOOD C
B 880 E
N
G
I
B
10% ANNUAL CHANCE FLOOD R
D
O
E
N
C
STREAM BED M A
E
P Q R CROSS SECTION LOCATION L
A
R
870 E
D
19000 19500 20000 20500 21000 21500 22000 22500 23000 23500 24000 24500 25000 25500 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH CHATTAHOOCHEE RIVER 195P 970 970
K
960 E 960
E
F
D
R
O
R
C
E
N
D
C
D
O
R
N
N
T
E
T
U
N
L
U
O
A
L
O
R
C
F
H
G
N
D
P
O
L
M S
C 950 O 950
A
E
C
L
I
K
F
E
E
O
R
R
C
P
E
P
D
940 940 O
O
S
O
L
F
)
8
8
D
V 930 930
A
N
(
T
E
E
F
N
I
N
O
I
T 920 920
A
V
E
L
E
Y
C
910 910 N
E
G
A
T
N
S
E U A A
E
M
G
R
E
,
A
900 900 G
Y
D
A
E
T
LEGEND N
T
N
A 0.2% ANNUAL CHANCE FLOOD A
R
U
M
O
O 1% ANNUAL CHANCE FLOOD Y P
R
C
C
O
N
2% ANNUAL CHANCE FLOOD C
B
E
890 N
G
I
B
10% ANNUAL CHANCE FLOOD R
D
O
E
N
C
STREAM BED M A
E
S T CROSS SECTION LOCATION L
A
R
880 E
D
25500 26000 26500 27000 27500 28000 28500 29000 29500 30000 30500 31000 31500 32000 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH CHATTAHOOCHEE RIVER 196P 990 990
980 980
970 970 S
E
L
I
K
F
E
E
O
R
R
C
P
E
P
D
960 960 O
O
S
O
L
F
)
8
8
D
V 950 950
A
N
(
T
E
E
F
N
I
N
O
I
T 940 940
A
V
E
L
E
Y
C
930 930 N
E
G
A
T
N
S
E Z AA A A
E
M
G
R
E
,
A
920 920 G
Y
D
A
E
T
LEGEND N
T
N
A 0.2% ANNUAL CHANCE FLOOD A
R
U
M
O
O 1% ANNUAL CHANCE FLOOD Y P
R
C
C
O
N
2% ANNUAL CHANCE FLOOD C
B 910 E
N
G
I
B
10% ANNUAL CHANCE FLOOD R
D
O
E
N
C
STREAM BED M A
E
V W X Y CROSS SECTION LOCATION L
A
R
900 E
D
32000 32500 33000 33500 34000 34500 35000 35500 36000 36500 37000 37500 38000 38500 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH CHATTAHOOCHEE RIVER 197P 1020 1020
H
C
Y Y
1010 F 1010
N
O
W W
D
A
K K
E
R
R
P P
C
L
B
N
L
A A
E
E
D
T T
U
O
T T
W
L
E E
O
S
I I
F
O
W
R R
N
R
D
A A
O
L
S
C
I 1000 M M 1000
E
W
L
I
K
F
E
E
O
R
R
C
P
E
P
D
990 990 O
O
S
O
L
F
)
8
8
D
V 980 980
A
N
(
T
E
E
F
N
I
N
O
I
T 970 970
A
V
E
L
E
Y
C
960 960 N
E
G
A
T
N
S
E AE A A
E
M
G
R
E
,
A
950 950 G
Y
D
A
E
T
LEGEND N
T
N
A 0.2% ANNUAL CHANCE FLOOD A
R
U
M
O
O 1% ANNUAL CHANCE FLOOD Y P
R
C
C
O
N
2% ANNUAL CHANCE FLOOD C
B 940 E
N
G
I
B
10% ANNUAL CHANCE FLOOD R
D
O
E
N
C
STREAM BED M A
E
AB AC AD CROSS SECTION LOCATION L
A
R
930 E
D
38500 39000 39500 40000 40500 41000 41500 42000 42500 43000 43500 44000 44500 45000 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH CHATTAHOOCHEE RIVER 198P 1030 1030
H
K
C
1020 F F 1020
D E
D
E
N
R O O
A
R
A
L
E E
O
C
L R
C C
I
R
B
K
N N
E
M
E E
C
H
C
S
U U
A
T
A
L L
E
J
E
L
F F
N
K
B
L
N N
R
C
A
A
O O
A
A
Z
I
W
S
C C
L
B 1010 L 1010
B
E E
L
I
K
F
E
E
O
R
R
C
P
E
P
D
1000 1000 O
O
S
O
L
F
)
8
8
D
V 990 990
A
N
(
T
E
E
F
N
I
N
O
I
T 980 980
A
V
E
L
E
Y
C
970 970 N
E
G
A
T
N
S
E AJ A A
E
M
G
R
E
,
A
960 960 G
Y
D
A
E
T
LEGEND N
T
N
A 0.2% ANNUAL CHANCE FLOOD A
R
U
M
O
O 1% ANNUAL CHANCE FLOOD Y P
R
C
C
O
N
2% ANNUAL CHANCE FLOOD C
B
E
950 N
G
I
B
10% ANNUAL CHANCE FLOOD R
D
O
E
N
C
STREAM BED M A
E
AF AG AH AI CROSS SECTION LOCATION L
A
R
930 E
D
45000 45500 46000 46500 47000 47500 48000 48500 49000 49500 50000 50500 51000 51500 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH CHATTAHOOCHEE RIVER 199P 1060 1060
H
C
T
N
X
A
E
R 1050
L B 1050
A
E
I
Y
P
R
W
T O
K
S S
P
U
F
D
B O
N
B
E
I
O
C
S
C
N
N
E
S 1040 E
U
K 1040
E
L
C
F
I
L
I
N
P
K
O
F
E
C
E
O
R
R
C
P
E
P
D
1030 1030 O
O
S
O
L
F
)
8
8
D
V 1020 1020
A
N
(
T
E
E
F
N
I
N
O
I
T 1010 1010
A
V
E
L
E
Y
C
1000 1000 N
E
G
A
T
N
S
E
A A
E
5
M
G
7 R
E
,
A
Y
990 990 G
A
Y
D
A
W
E
T
LEGEND N
H
T
G
N
A
A I 0.2% ANNUAL CHANCE FLOOD
H
R
U
M
O
E
O
T 1% ANNUAL CHANCE FLOOD Y P
A
R
C
C
T
O
N
S
2% ANNUAL CHANCE FLOOD C
B 980 R E
E
N
G
I
B
T
10% ANNUAL CHANCE FLOOD R
N
D
O
I
E
N
C
STREAM BED M A
E
AK AL AM AN CROSS SECTION LOCATION L
A
R
970 E
D
51000 51500 52000 52500 53000 53500 54000 54500 55000 55500 56000 56500 57000 57500 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH CHATTAHOOCHEE RIVER 200P 1100 1100
Y
D
U
T
T
1090 Y 1090
S
S
W
D
S
Y K
T
E
T
D
P
A
L
S
S
I
N
W
A
Y
A
U
E
E
T
B T
O
G
V
T
I E
G
R
A
E
I
R I
D
P
G
R
D R
F
R
I
A
O
A
S
M
F
T
1080 I 1080
E
M
L
I
I
L K
F
E
E
O
R
R
C
P
E
P
D 1070 1070 O
O
S
O
L
F
)
8
8
D V 1060 A 1030
N
(
T
E
E
F
N
I
N
O
I
T 1050 1050
A
V
E
L
E
Y
C
1040 1040 N
E
G
A
T
N
S
E
A A
E
M
G
R
E
,
A
1030 1030 G
Y
D
A
E
T
LEGEND N
T
N
A 0.2% ANNUAL CHANCE FLOOD A
R
U
M
O
O 1% ANNUAL CHANCE FLOOD Y P
R
C
C
O
N
2% ANNUAL CHANCE FLOOD C
B 1020 E
N
G
I
B
10% ANNUAL CHANCE FLOOD R
D
O
E
N
C
STREAM BED M A
E
AO AP CROSS SECTION LOCATION L
A
R
1010 E
D
56500 57000 57500 58000 58500 59000 59500 60000 60500 61000 61500 62000 62500 63000 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH CHATTAHOOCHEE RIVER 201P 1000 1000 1% ANNUAL CHANCE BACKWATER EFFECTS FROM WILLEO CREEK
K
M
E
A
E
D
R
C
990 990
L
O
I
E
A
L
R
L
I
T
W
Y
V
H
I
T
I
K
K
C
W E
O
E
E
S
R
C
980 980 R
E
N
C
E
L
I
U
N
L
I
F
F
A
N
O
O
T
R
C
N
P
U
O 970 970 D
M
O
T
O
A
L
E
F
W
)
S
8
8
D
V 960 960
A
N
(
T
E
E
F
N
I
N
O
I
T 950 950
D
A
V R
E
Y
L
R
E
B
A
M
Y
C
940 940 N
E
G
A
T
N
S
E F G H A A
E
M
G
R
E
,
A
930 930 G
Y
D
A
E
T
LEGEND N
T
N
A 0.2% ANNUAL CHANCE FLOOD A
R
U
M
O
O 1% ANNUAL CHANCE FLOOD Y P
R
C
C
O
N
2% ANNUAL CHANCE FLOOD C
B 920 E
N
G
I
B
10% ANNUAL CHANCE FLOOD R
D
O
E
C N
C
STREAM BED M A
E
A B D E CROSS SECTION LOCATION L
A
R
910 E
D
0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH WILLEO CREEK 202P 1030 1030
Y
Y
A D
U
W
D 1020 T 1020
K
R
S
R
L
A
D
E
E
P
P
L
I
A
D
A
H
N
T
C
A
E
L
Y
D
K
H
E
F
L
G E
I
O
S
E
H
S
E
T
1010 1010 R
I
H
E
W
C
C
M
L
I
O
I
L
L N
I
F
A
O
T
R
N
P
U
O 1000 1000 D
M
O
T
O
A
L
E
F
W
)
S
8
8
D
V 990 990
A
N
(
T
E
E
F
CULVERT
N
I
N
O
I
T 980 980
A
V
E CULVERT
L
E
Y
C
970 970 N
E
G
A
T
N
S
E O P A A
E
M
G
R
E
,
A
960 960 G
Y
D
A
E
T
LEGEND N
T
N
A 0.2% ANNUAL CHANCE FLOOD A
R
U
M
O
O 1% ANNUAL CHANCE FLOOD Y P
R
C
C
O
N
2% ANNUAL CHANCE FLOOD C
B 950 E
N
G
I
B
10% ANNUAL CHANCE FLOOD R
D
O
E
K N N
C
STREAM BED M A
E
I J L M CROSS SECTION LOCATION L
A
R
940 E
D
6500 7000 7500 8000 8500 9000 9500 10000 10500 11000 11500 12000 12500 13000 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH WILLEO CREEK 203P 930 930
D
A
D
D
O
Y A
R
R
O
W
L S
R
I
K
D
G
L
D
K A
I
P
A
N
E
R
920 R 920
I
A
F
F
L
F
O
E
R
L
R
K
O
O
A
N
O
R
K
R
I
L
P
E
I
R E
E
E
N
C
E
R
E
S
A
E
E
C
C
R
M
C
O R
K
R
H R
M
E
N
N
N L C
N
M E
I T C
A
E
E H
E
E
O D
S
U
B
T
U
U
M Y
U
E
S
L
L
O
A M
L E U
W
R
S
F F
R
L
L
F
S
E O
O
S
E
L
O
N
N
A
N
T
S
P
K
N
K
O
O N
O
O T
L K
D
L
A K
R
S
C
C
C
U
L
L
O
E
L
E
910 R 910
F E
B E
O
O
E P E
T
R
F
T L
L
R
S
O
I
R
E
L
U
C
V N
O
E
F
A
T
N
R
S O
E
U
R
A
T
P
F
A
O
W
D 900 Y 900
T
T
I
O
E
C
E
O
L
W
F
S
)
8
8
D
V 890 890
A
N
(
T
E
E
F
N
I
N
O
I
T 880 880
A
V
E
L
E
Y
C
870 P 870 N
E
G
A
O
T
N
S
E M N A A
E
M
G
R
E
,
A
860 860 G
Y
D
A
E
T
LEGEND N
T
N
A 0.2% ANNUAL CHANCE FLOOD A
R
U
M
O
O 1% ANNUAL CHANCE FLOOD Y P
R
C
C
O
N
2% ANNUAL CHANCE FLOOD C
B 850 G E
N
G
I
B
10% ANNUAL CHANCE FLOOD R
D
O
E
B F I L N
C
STREAM BED M A
E
A C D E H J K CROSS SECTION LOCATION L
A
R
840 E
D
0 2000 4000 6000 8000 10000 12000 14000 16000 18000 20000 22000 24000 26000 E
F STREAM DISTANCE IN FEET ABOVE COUNTY BOUNDARY 204P 940 940
D
R
S
Y K
930 D 930
G
F
F
G
E
W A
N
O
O
D E
N
I
I
K O
R R
E
R E
R
P
R
C
C P
C
E
P
S
S
N
N
D N
S S
I
E
E
E
A
D
A
S
R
I
U
M U
R
M
T E
L
L
H
A
A
S O
F
D
F
T
J
L
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N
N
.
W
L
L
T
O
W O
H
O
O K
.
O
S
C
C
P
M
H
E
C 920 G 920
A
E
E
R
L
I
R
I
H
C
F
R
O
E
R
T
P
A
W 910 910 D
T
O
E
E
O
L
W
F
S
)
8
8
D
V 900 900
A
N
(
T
E
E
F
N
I
N
O
I
T 890 890
A
V
E
L
E
Y
C
880 880 N
E
G
A
AB T
N
S
E AC A A
E
M
G
AA R
E
,
A
870 870 G
Y
D
A
E
T
LEGEND N
T
N
A 0.2% ANNUAL CHANCE FLOOD A
R
U
M
O
O 1% ANNUAL CHANCE FLOOD Y P
R
C
C
O
N
2% ANNUAL CHANCE FLOOD C
B 860 E
N
G
I
B
10% ANNUAL CHANCE FLOOD R
D
O
E
S X N
C
STREAM BED M A
E
Q R T U V W Y Z CROSS SECTION LOCATION L
A
R
850 E
D
26000 28000 30000 32000 34000 36000 38000 40000 42000 44000 46000 48000 50000 52000 E
F STREAM DISTANCE IN FEET ABOVE COUNTY BOUNDARY 205P 950 950
D
Y
A
940 R 940
O
A
D
R
D
A
N
E
O
L
U
R
L
I
O
N
V
B
S
W
Y
N
O
T
R
W
N
B
O
U
K
S
R
O 930 930 E
B
E
C
E
L
R
I
C
F
R
O
E
R
T
P
A
W 920 920 D
T
O
E
E
O
L
W
F
S
)
8
8
D
V 910 910
A
N
(
T
E
E
F
N
I
N
O
I
T 900 900
A
V
E
L
E
Y
C
N 890 890
Y
E
D
G
U
T
A
S
D
T
E
L
N
I
S
A
E
A A
T
E
E
M
G
D
R
E
F
,
A
O
G 880 880
Y
T
D
I
A
E
T
M
I LEGEND N
T
L
N
A 0.2% ANNUAL CHANCE FLOOD A
R
U
M
O
O 1% ANNUAL CHANCE FLOOD Y P
R
C
C
O
N
2% ANNUAL CHANCE FLOOD C
B 870 E
N
G
I
B
10% ANNUAL CHANCE FLOOD R
D
O
E
AE AH N
C
STREAM BED M A
E
AD AF AG AI CROSS SECTION LOCATION L
A
R
860 E
D
52000 54000 56000 58000 60000 62000 64000 66000 68000 70000 72000 74000 76000 78000 E
F STREAM DISTANCE IN FEET ABOVE COUNTY BOUNDARY 206P 900 900
1% ANNUAL CHANCE BACKWATER EFFECT FROM LAKE ALLATOONA
(10%, 2% AND 0.2% ANNUAL CHANCE BACKWATER EFFECTS FROM LAKE ALLATOONA UNKNOWN)
890 890
A
N
O
Y
O
S
R
880 T 880
5
E
K
A
A
7
L E
L
-
D
I
L
E
N
E
A
F
U
T
R
E
O
A
C
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K
B
T
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S
R
Y
D
L
R
T
P
R
E
H
N
T
T
A
U
I
N
D
Y
I
O
870 W 870
C
N
O
E
C A
O
N
T
L
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U
F
L
F
)
N
8
8
O
C
D
V 860 860
A
N
(
T
E
E
F
N
I
N
O
I
T 850 850
A
V
E
L
E
Y
C
840 840 N
E
G
A
T
N
S
E
A A B A
E
M
G
R
CULVERT E
,
A
830 830 G
Y
D
A
E
T
LEGEND N
T
N
A 0.2% ANNUAL CHANCE FLOOD A
R
U
M
O
O
P 1% ANNUAL CHANCE FLOOD Y
R
C
C
O
N
2% ANNUAL CHANCE FLOOD C
B 820 E
N
G I
B 10% ANNUAL CHANCE FLOOD
R
D
O
E
N
C
A
STREAM BED M
E
CROSS SECTION LOCATION L
A
R
810 E 0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 D
E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH LAKE ALLATOONA 207P 920 920
1% ANNUAL CHANCE BACKWATER EFFECT FROM LAKE ALLATOONA
(10%, 2% AND 0.2% ANNUAL CHANCE BACKWATER EFFECTS FROM LAKE ALLATOONA UNKNOWN)
910 910
900 900 S
E
K
L E
I
E
F
R
C
O
R
D
P
R
A
D
R 890 890 Y
D
N
O
T
H
S
A
O
T
E
T
R
L
E
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K
F
O
W
)
R
C
8
E
A
8
H
E
C
D
K
V 880 A 880
A
L
N
(
T
E
E
F
N
I
N
O
I
T 870 870
A
V
E
L
E
Y
CULVERT C 860 860 N
E
G
A
CULVERT
T
N
S
E
A I J A
E
M
G
R
E
,
A
850 850 G
Y
D
A
E
T
LEGEND N
T
N
A 0.2% ANNUAL CHANCE FLOOD A
R
U
M
O
O
P 1% ANNUAL CHANCE FLOOD Y
R
C
C
O
N
2% ANNUAL CHANCE FLOOD C
B 840 E
N
G I
B 10% ANNUAL CHANCE FLOOD
R
D
O
E
N
C
A
STREAM BED M
E
C D E F G H CROSS SECTION LOCATION L
A
R
830 E 6500 7000 7500 8000 8500 9000 9500 10000 10500 11000 11500 12000 12500 13000 D
E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH LAKE ALLATOONA 208P 940 940
930 D 930
R
E
V
O
R
G
R
E
K
A
S
920 B 920
E
K
L E
I
E
F
R
C
O
R
D
P
R
A
D 910 910 Y
N
O
E
A
G
D
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R D
T
I
L
R
N
F
B
A
)
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W
8 CULVERT
R
O
8
A
C
P
D
V 900 900
A
N
(
T
E
E
F
N
I
N
O
I
T 890 890
A
V
E
L
E CULVERT
CULVERT Y
C
880 880 N
E
G
A
T
N
S
E
A P A
E
M
G
R
E
,
A
870 870 G
Y
D
A
E
T
LEGEND N
T
N
A 0.2% ANNUAL CHANCE FLOOD A
R
U
M
O
O
P 1% ANNUAL CHANCE FLOOD Y
R
C
C
O
N
2% ANNUAL CHANCE FLOOD C
B 860 E
N
G I
B 10% ANNUAL CHANCE FLOOD
R
D
O
E
N
C
A
STREAM BED M
E
K L M N O CROSS SECTION LOCATION L
A
R
850 E 13000 13500 14000 14500 15000 15500 16000 16500 17000 17500 18000 18500 19000 19500 D
E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH LAEK ALLATOONA 209P 970 970
960 960
950 950 S
E
K
L E
I
E
F
R
C
O
R
D
P
R
R
A
D
D 940 940 Y
N
N
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O
I
A
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T
T
A
L
T
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N
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)
L
8
P
8
R
D
E
V
930 K 930
A
A
N
(
B
T
E
E
F
N
I
N
O
I
T 920 920
A
V
E
L
E
CULVERT Y
C
Y
N
910 D 910
E
U
G
T
S
A
D
T
E
L
I
N
S
A
E
A
A
T
E
E
M
G
R
D
E
,
A
F
900 900 G
O
Y
D
A
T
E
T
I
LEGEND N
T
M
N
A
I
A
L 0.2% ANNUAL CHANCE FLOOD
R
U
M
O
O
P 1% ANNUAL CHANCE FLOOD Y
R
C
C
O
N
2% ANNUAL CHANCE FLOOD C
B 890 E
N
G I
B 10% ANNUAL CHANCE FLOOD
R
D
O
E
N
C
A
STREAM BED M
E
Q R S CROSS SECTION LOCATION L
A
R
880 E 19500 20000 20500 21000 21500 22000 22500 23000 23500 24000 24500 25000 25500 26000 D
E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH LAKE ALLATOONA 210P 970 970
5
Y
A
W
H
G
I
H
7
G
E 960 E 960
1
T V
N
.
I
I
A
R O
D
T
D R N
S
A
E E
/
T
R R
5
I
E
U
7
H
R
T
5
S
C
D
K
E
U
O
R
T
R
O
O
A
S
L
T
Y 950 T 950
F
S
E
S
R L
I
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K
T
F
E
N
E
I
O
.
R
S
R
.
C
U
P
E
T
D
940 940 A
O
T
O
L
F
T
)
S
8
E
8
W
D
H
V 930 T 930
A
R
N
O
(
D
N
T
A
E
D
O
K
E
A
E
R
F
E O
T
N R
R
I
R
C
I
Y
N
D
Y
R
O
I A R
E
T 920 D 920
F
A
N
V
S
O
E
L
O
L
L
O
E
E
N
B
H
T
I
Y
W
C
E
N 910 C 910
E
N
E
G
U
A
L
F
T
N
O
N
S
C
E D E A A
E
M
G
R
E
,
A
900 900 G
Y
D
A
E
T
LEGEND N
T
N
A 0.2% ANNUAL CHANCE FLOOD A
R
U
M
O
O 1% ANNUAL CHANCE FLOOD Y P
R
C
C
O
N
*2% ANNUAL CHANCE FLOOD C
B 890 E
N
G
I
B
10% ANNUAL CHANCE FLOOD R
D
O
E
N
C
A STREAM BED M
E
A B C CROSS SECTION LOCATION L
A
R
880 E
D
0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 11000 12000 13000 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH NOONDAY CREEK * DATA NOT AVAILABLE 211P
850 850 FLOODING CONTROLLED BY CHATTAHOOCHEE RIVER
Y
T
D
S
U 1% ANNUAL CHANCE BACKWATER EFFECTS FROM CHATTAHOOCHEE RIVER A
R
T
E
E
S
H
V
H
I 840 T 840
D
T
R
U
I
E
L
O
E
I
W
S
E
A
E
H
E
T
C
C
E
V
I
N
O
D
E
R
O
F
U
D
H
L
O
S
F A
T
N
T
N
I
T
O
S
M
M
I 830 A 830
C
U
H
E
L
H
L
C
L
C
O
I
N
C
F
A
O
R
B
R
L
P
L
E 820 820 D
R
O
R
E
O
T
L
F
)
8
8
D
V 810 810
A
N
(
T
E
E
F
N
I
N
O
I
T 800 800
A
V
E
L
E
Y
C
790 790 N
E
G
A
T
N
S
E B A A
E
M
G
R
E
,
A
780 780 G
Y
D
A
E
T
LEGEND N
T
N
A 0.2% ANNUAL CHANCE FLOOD A
R
U
M
O
O 1% ANNUAL CHANCE FLOOD Y P
R
C
C
O
N
*2% ANNUAL CHANCE FLOOD C
B
E
770 N
G
I
B
10% ANNUAL CHANCE FLOOD R
D
O
E
N
C
A STREAM BED M
E
A CROSS SECTION LOCATION L
A
R
760 E
D
0 200 400 600 800 1000 1200 1400 1600 1800 2000 2200 2400 2600 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH CHATTAHOOCHEE RIVER * DATA NOT AVAILABLE 213P
980 980 1% ANNUAL CHANCE BACKWATER EFFECTS FROM NICKAJACK CREEK
T
S
A
T
E
S
H
0 A
D
T
E
H
8
K
H 970 A 970
F
E
T U 2
H
I C
O
E
O
T
O
Y
R
N
E
R
W
S
U
E
A
A
C N
D
O
E C
E
R
W
A
R
S
C
N V
K
B
L
I
H
O
E
N
C
T
R
G
E
C
E A
U
A I E
D
P
L
U N
N
J E
H
F
L O
O R
B R
A
E
F
N
H
Y
C T
K B
T
N
O
S
C O
M
I D
A
S
O C
C
L S
K
T
H
960 N 960
C
E
O
S N
H
C
L
T A
I
N
B
U
F
O
A
S
R
O
B
R
R
P
E
T 950 950 D
A
O
E
O
H
L
T
F
)
8
8
D
V 940 940
A
N
(
CULVERT
T
E
E
F
N CULVERT
I
N
O
I
T 930 930
A
V
E
L
E
Y
C
920 920 N
E
G
A
I
T
N
S
E H A A
E
M
G
R
E
,
A
910 910 G
Y
D
A
E
T
LEGEND N
T
N
A 0.2% ANNUAL CHANCE FLOOD A
R
U
M
O
O 1% ANNUAL CHANCE FLOOD Y P
R
C
C
O
N
2% ANNUAL CHANCE FLOOD C
B 900 E
N
G
I
B
10% ANNUAL CHANCE FLOOD R
D
O
E
E N
C
STREAM BED M A
E
A B C D F G CROSS SECTION LOCATION L
A
R
890 E
D
0 400 800 1200 1600 2000 2400 2800 3200 3600 4000 4400 4800 5200 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH NICKAJACK CREEK 215P 1010 1010
T
S
A
E
T
T
H
S
S
Y
T
A
A
D
U
E
E
U
O
H
H
T
1000 S 1000
T
T
S
U
T
U
O
D
E
O
E
E S
S
L
R
I
D
E
T
A
A
V
S
I
T
O
E
R
S
R
D
D
G
L
F
N
Y
L
I
I
O
A
R
H
S
T
P
W
990 990 H
I
Y
E
S
K
C
D
M
L
R
I
R
I
N
N
L
I A
E
F
P
A
D
W
R
W
O
O
B
R
P
R
P
E
T 980 980 D
A
O
E
O
H
L
T
F
)
8
8
CULVERT
D
V 970 970
A
N
(
T
E
E
F
N
I CULVERT
N
O
I
T 960 960
A
V
E
L
E
Y
C
950 950 N
E
G
A
R
T
N CULVERT S
E Q A A
E
M
G
R
E
,
A
940 940 G
Y
D
A
E
T
LEGEND N
T
N
A 0.2% ANNUAL CHANCE FLOOD A
R
U
M
O
O 1% ANNUAL CHANCE FLOOD Y P
R
C
C
O
N
2% ANNUAL CHANCE FLOOD C
B 930 E
N
G
I
B
10% ANNUAL CHANCE FLOOD R
D
O
E
K O N
C
STREAM BED M A
E
J L M N P CROSS SECTION LOCATION L
A
R
920 E
D
5200 5600 6000 6400 6800 7200 7600 8000 8400 8800 9200 9600 10000 10400 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH NICKAJACK CREEK 216P
910 910
1% ANNUAL CHANCE BACKWATER EFFECTS FROM WILLEO CREEK
Y
D
K
E
E U
D
E
V
T
900 A 900
D I
E
D
R
S
O
A R
G
A
C
R
O D D
D
O
I
O
E
R
E
R
D
R
L
E
I
G
Y
L R
Y B
M
A
L D
A
O
A
A
I I
E
T
F
D
R D
D
T
E
W
G
N
N
A
D
R
N
H
O
O
V
I
E
I F
H
T
C
C
T
I
B
R
O
E
E
C
N
S
P
W M
S
S
T 890 I 890
U
I
N
E
E
T
H
M
A
C
L
I
I
N
L
R
E
F
B
U
L
O
E
F
R
N
G
O
D
P
I
C
R
880 880 D
R
O
E
O
B
L
M
F
I
T
)
8
8
D
V 870 CULVERT 870
A
N
(
T
E
E
F
N
I
N
O
I
T 860 860
A
V
E
L
E
Y
C
850 850 N
E
G
A
T
N
S
E N O P A A
E
M
G
R
E
,
A
840 840 G
Y
D
A
E
T
LEGEND N
T
N
A 0.2% ANNUAL CHANCE FLOOD A
R
U
M
O
H M O 1% ANNUAL CHANCE FLOOD Y P
R
C
C
O
N
2% ANNUAL CHANCE FLOOD C
B 830 D G L E
N
G
I
B
10% ANNUAL CHANCE FLOOD R
D
O
E
C F K N
C
STREAM BED M A
E
A B E I J CROSS SECTION LOCATION L
A
R
820 E
D
0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH WILLEO CREEK 218P
810 810 1% ANNUAL CHANCE BACKWATER EFEECTS FROM CHATTAHOOCHEE RIVER
R
T
T
E
S
S
V
E
I E
R
W
W
Y
H
E
H
D
T
E
T
U
R
H
R 800 T 800
O
C S
O
N
O
D
N
E
O
D
E L
I
H
V A
A
I
A
O
T
R
T
E
R
D
T
D
A
F
M
K
O
H
R
O
C T
A
O I
F
S
R
H M 790 I 790
L
B
T
L
H
E
I
L
D
L C
A
W
I
N
D
N
E
A
F
N
C
L
A
A
N
D O
R
R
E
O
R B
U
O
L
P
F
W
S
N
G
O
D
N
780 C 780
I
O
N
I
O
V
L
F
)
8
8
D
V 770 770
A
N
(
T
E
E
F
N
I
N
O
I
T 760 760
A
V
E
L
E
Y
C
750 750 N
E
G
A
T
N
S
E C A A
E
M
G
R
E
,
A
740 740 G
Y
D
A
E
T
LEGEND N
T
N
A 0.2% ANNUAL CHANCE FLOOD A
R
U
M
O
O 1% ANNUAL CHANCE FLOOD Y P
R
C
C
O
N
2% ANNUAL CHANCE FLOOD C
B
E
730 N
G
I
B
10% ANNUAL CHANCE FLOOD R
D
O
E
N
C
A STREAM BED M
E
A B CROSS SECTION LOCATION L
A
R
720 E
D
0 200 400 600 800 1000 1200 1400 1600 1800 2000 2200 2400 2600 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH CHATTAHOOCHEE RIVER 224P 980 980
1% ANNUAL CHANCE BACKWATER EFFECTS FROM NOSES CREEK
K
E
E
Y
R
A
C
970 W 970
S
K
D
E
P
R
S
T
O
D
T
N
R
E
A
R
H
R
T
W
I
A
N
W
B
H
T
O
E
J
S
S
C
960 E 960
N
E
N
E
R
L
U
K
I
E
L
E
F
F
E
N
O
O
R
C
R
C
P
D
R
D
950 950 A
O
W
O
L
F
)
8
8
D
V 940 940
A
N
(
T
E
E
F
N
I
N
O
I
T 930 930
A
V
E
L
E
Y
C
920 920 N
E
G
A
T
N
S
E E A A
E
M
G
R
E
,
A
910 910 G
Y
D
A
E
T
LEGEND N
T
N
A 0.2% ANNUAL CHANCE FLOOD A
R
U
M
O
O 1% ANNUAL CHANCE FLOOD Y P
R
C
C
O
N
2% ANNUAL CHANCE FLOOD C
B 900 E
N
G
I
B
10% ANNUAL CHANCE FLOOD R
D
O
E
N
C
STREAM BED M A
E
A B C D CROSS SECTION LOCATION L
A
R
890 E
D
0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH NOSES CREEK 225P 990 990
980 D 980
R
L
L
I
H
M
A
H
T
A
E
S
970 H 970
E
C
L
K
I
E
F
E
O
R
R
C
P
D
R
D
960 960 A
O
W
O
L
F
)
8
8
D
V 950 950
A
N
(
T
E
E
F
N
I
N
O
I
T 940 940
A
V
E
L
E
Y
C
930 930 N
E
G
A
T
N S
E
A K L A
E
M
G
R
E
A
,
920 920 G
Y
D
A
E
T
N
LEGEND T
N
A
A
0.2% ANNUAL CHANCE FLOOD R
U
M
O
P
O 1% ANNUAL CHANCE FLOOD Y
R
C
C
O
N
2% ANNUAL CHANCE FLOOD C
B
E
910 N
I
G
B 10% ANNUAL CHANCE FLOOD
R
D
O
E
N
C
A
STREAM BED M
E
F G H I J CROSS SECTION LOCATION L
A
R
900 E 6500 7000 7500 8000 8500 9000 9500 10000 10500 11000 11500 12000 12500 13000 D
E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH NOSES CREEK 226P 1010 1010
1000 1000
990 990 S
E
L
K
I
E
F
E
O
R
R
C
P
D
R
D
980 980 A
O
W
O
L
F
)
8
8
D
V 970 970
A
N
(
T
E
E
F
N
I
N
O
I
T 960 960
A
V
E
L
E
Y
C
950 950 N
E
G
A
T
N S
E
A R S A
E
M
G
R
E
A
,
940 940 G
Y
D
A
E
T
N
LEGEND T
N
A
A
0.2% ANNUAL CHANCE FLOOD R
U
M
O
P
O 1% ANNUAL CHANCE FLOOD Y
R
C
C
O
N
2% ANNUAL CHANCE FLOOD C
B
E
930 N
I
G
B 10% ANNUAL CHANCE FLOOD
R
D
O
E
N
C
A
STREAM BED M
E
M N O P Q CROSS SECTION LOCATION L
A
R
920 E 13000 13500 14000 14500 15000 15500 16000 16500 17000 17500 18000 18500 19000 19500 D
E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH NOSES CREEK 227P 1030 1030
1020 1020
1010 1010 S
E
E
V
L
I
K
I
R
E
F
D
E
E
O
R
T
R
C
A
V
I
P
D
R
R
P
D
1000 1000 A
O
W
O
L
F
)
8
8
D
V 990 990
A
N
(
T
E
E
F
N
I
N
O
I
T 980 980
A
V
E
L
E
Y
C
970 970 N
E
G
A
T
N
S
E Z AA A A
E
M
G
R
E
,
A
960 960 G
Y
D
A
E
T
LEGEND N
T
N
A 0.2% ANNUAL CHANCE FLOOD A
R
U
M
O
O 1% ANNUAL CHANCE FLOOD Y P
R
C
C
O
N
2% ANNUAL CHANCE FLOOD C
B 950 E
N
G
I
B
10% ANNUAL CHANCE FLOOD R
D
O
E
N
C
STREAM BED M A
E
T U V W X Y CROSS SECTION LOCATION L
A
R
940 E
D
19500 20000 20500 21000 21500 22000 22500 23000 23500 24000 24500 25000 25500 26000 E
F STREAM DISTANCE IN FEET ABOVE CONFELUNCE WITH NOSES CREEK 228P 1060 1060
H
C
N
A
E
R
V 1050 R B 1050
A
D R
E
R
L
D
D
K
D
L
I
C E
K
S
E
I
C
T
T W
R
O
S
T
A X
L
E
V
A
A
I
T
Y
I
P
W
R
M
D
H
K
F
P
U
R
T
O W
I
S
K
E
S
1040 D 1040
C
E
E
L
N
I
L
E
A
K
I
L
T
E
E
U
F
D
F E CULVERT
F O
N
R
O
O
R
C
T
C
I
P
M
D
I
L
R
CULVERT D
1030 1030 A
O
W
O
L
F
)
8
8
D
V 1020 1020 A CULVERT
N
(
T
E
E
F
N
I
N
O
I
T 1010 1010
A
V
E
L
E
Y
C
1000 CULVERT 1000 N
E
G
A
T
N
S
E AK AL AM A A
E
M
G
R
E
,
A
990 990 G
Y
D
A
E
T
LEGEND N
T
N
A 0.2% ANNUAL CHANCE FLOOD A
R
U
M
O
O 1% ANNUAL CHANCE FLOOD Y P
R
C
C
O
N
2% ANNUAL CHANCE FLOOD C
B 980 E
N
G
I
B
10% ANNUAL CHANCE FLOOD R
D
O
E
N
C
STREAM BED M A
E
AB AC AD AE AF AG AH AI AJ CROSS SECTION LOCATION L
A
R
970 E
D
26000 26500 27000 27500 28000 28500 29000 29500 30000 30500 31000 31500 32000 32500 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH NOSES CREEK 229P
950 950
1% ANNUAL CHANCE BACKWATER EFFECT FROM NOSES CREEK
K
E
K
E
E
R
E
C
D
R 940 940
R
F
C
S
D
E
O
R
A
D
N
S
I
E
C
R
A
I
O
A
I
C
R
S
N
T
N
N
N
N
E
O A
I
H
L
U
U
D
K
T
L
I
L
O E
I
P
F
C
V
W
O
M
N
A
H
D
T
O
E
L
M
S
S
C
C
K 930 O 930
O
N
E
E
L
E
L
E
U
I
L
R
F
F
C
N
O
O
E
C
R
S
P
R
O
D 920 920 H
O D
L
I
O
L
W
F
)
8
8
D
V 910 910
A
N
(
T
E
E
F
N
I
N
O
I
T 900 900
A
V
E
L
E
Y
C
890 890 N
E
G
A
H
T
N
S
E G A A
E
M
G
R
E
,
A
880 880 G
Y
D
A
E
T
LEGEND N
T
N
A 0.2% ANNUAL CHANCE FLOOD A
R
U
M
O
O 1% ANNUAL CHANCE FLOOD Y P
R
C
C
O
N
2% ANNUAL CHANCE FLOOD C
B 870 E
N
G
I
B
10% ANNUAL CHANCE FLOOD R
D
O
E
B E N
C
STREAM BED M A
E
A C D F CROSS SECTION LOCATION L
A
R
860 E
D
0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 11000 12000 13000 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH NOSES CREEK 231P 1000 1000
Y
D
U
990 T 990
S
R
D
D
E
O L
H A
T
A
E
P
D
A
R
F
A
O
S
T
K
980 I 980
E
E
M
L
I
E
I
L
R
F
C
O
E
R
S
P
R
O
D 970 970 H
O D
L
I
O
L
W
F
)
8
8
D
V 960 960
A
N
(
T
E
E
F
N
I
N
O
I
T 950 950
A
V
E
L
E
Y
C
940 940 N
E
G
A
T
N
S
E
A A
E
M
G
R
E
,
A
930 930 G
Y
D
A
E
T
LEGEND N
T
N
A 0.2% ANNUAL CHANCE FLOOD A
R
U
M
O
O 1% ANNUAL CHANCE FLOOD Y P
R
C
C
O
N
2% ANNUAL CHANCE FLOOD C
B 920 E
N
G
I
B
10% ANNUAL CHANCE FLOOD R
D
O
E
J N
C
STREAM BED M A
E
I K CROSS SECTION LOCATION L
A
R
910 E
D
12000 13000 14000 15000 16000 17000 18000 19000 20000 21000 22000 23000 24000 25000 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH NOSES CREEK 232P
910 910 1% ANNUAL CHANCE BACKWATER EFFECTS FROM CHATTAHOOCHEE RIVER
R
E
H
V
D
C
I
900 R 900
F
N
R
O
L
A
E
D
L
R
E
E
R
E
B
C
H
L
W
N
C
E
L
S
E
E
O
G
O
U
O
D
W
L
I
R
H
S
F
R
R
A
O
N
E
R
T
R
O
E
T
W
C
S
B
A
890 O 890
E
L
H
M
I
C
L
K
T
I
E
E
F
E
C
R
N
O
E
C
R
U
L
O
P
F
E
N
L
O
D
L
880 C 880
I
O
W
O
L
F
)
8
8
D
V 870 870
A
N
(
T
E
E
F
N
I
N
O
I
T 860 860
A
V
E
L
E
Y
C
850 850 N
E
G
A
T
N
S
E G A A
E
M
G
R
E
,
A
840 840 G
Y
D
A
E
T
LEGEND N
T
N
A 0.2% ANNUAL CHANCE FLOOD A
R
U
M
O
O 1% ANNUAL CHANCE FLOOD Y P
R
C
C
O
N
2% ANNUAL CHANCE FLOOD C
B 830 E
N
G
I
B
10% ANNUAL CHANCE FLOOD R
D
O
E
B E N
C
STREAM BED M A
E
A C D F CROSS SECTION LOCATION L
A
R
820 E
D
0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 11000 12000 13000 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH CHATTAHOOCHEE RIVER 234P 940 940
D
D R
930 R 930
D
T
R
T
O
I
F
R
W
T
O
K
L
A
L
O
A
H
T
S
S
S
920 O 920
E
P
L
K
I
E
F
E
R
O
C
R
K
E
O
P
E
E
R
L
C
D
L
910 F 910
E
I
O
O
V
O W
E
O
R
C
L
G
N
E
F
Y
U
N
)
L
O
F
8
8
N
M
O
R
D
C
A V 900 900
H
A
N
(
T
E
E
F
N
I
N
O
I
T 890 890
A
V
E
L
E
Y
C
880 880 N
E
G
A
T
N
S
E P Q A A
E
M
G
R
E
,
A
870 870 G
Y
D
A
E
T
LEGEND N
T
N
A 0.2% ANNUAL CHANCE FLOOD A
R
U
M
O
O 1% ANNUAL CHANCE FLOOD Y P
R
C
C
O
N
2% ANNUAL CHANCE FLOOD C
B 860 E
N
G
I
B
10% ANNUAL CHANCE FLOOD R
D
O
E
J L O N
C
STREAM BED M A
E
H I K M N CROSS SECTION LOCATION L
A
R
850 E
D
13000 14000 15000 16000 17000 18000 19000 20000 21000 22000 23000 24000 25000 26000 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH CHATTAHOOCHEE RIVER 235P 980 980
Y
K
D
E
Y
Y
E
U
R
970 R 970
R
T
A
A
F
C
S
D
D
D
O
R
N
N N D
I
E
E
U
S U
A
L
C
O
R I
O
T
N
E
B
B A
N
E
D
T
Y
Y
U
U
L
E
I
T
L
T
O
D
H F
N
N
M
C F
N
U
U
S
O
O
T
O
O 960 960
C
A E
C
C
T
I
E
L
K
I
M
W
I E
S
L
F
E
R
O
C
R
O
P
E
L
D
950 950 L
I
O
W
O
L
F
)
8
8
D
V 940 940
A
N
(
T
E
E
F
N
I
N
O
I
T 930 930
A
V
E
L
E
Y
C
920 920 N
E
G
A
T
N
S
E
A A
E
M
G
R
E
,
A
910 910 G
Y
D
A
E
T
LEGEND N
T
N
A 0.2% ANNUAL CHANCE FLOOD A
R
U
M
O
O 1% ANNUAL CHANCE FLOOD Y P
R
C
C
O
N
2% ANNUAL CHANCE FLOOD C
B 900 E
N
G
I
B
10% ANNUAL CHANCE FLOOD R
D
O
E
N
C
STREAM BED M A
E
R S T U CROSS SECTION LOCATION L
A
R
890 E
D
26000 27000 28000 29000 30000 31000 32000 33000 34000 35000 36000 37000 38000 39000 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH CHATTAHOOCHEE RIVER 236P