Title: Part D - Project Design Aids
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Permanent Link: http://ufdc.ufl.edu/WL00003935/00001
 Material Information
Title: Part D - Project Design Aids
Physical Description: Book
Language: English
Publisher: SWFWMD
 Subjects
Spatial Coverage: North America -- United States of America -- Florida
 Notes
Abstract: Jake Varn Collection - Part D - Project Design Aids
General Note: Box 16, Folder 2 ( SWFWMD Environmental Resource Permitting Informational Manual - 1997 ), Item 4
Funding: Digitized by the Legal Technology Institute in the Levin College of Law at the University of Florida.
 Record Information
Bibliographic ID: WL00003935
Volume ID: VID00001
Source Institution: Levin College of Law, University of Florida
Holding Location: Levin College of Law, University of Florida
Rights Management: All rights reserved by the source institution and holding location.

Full Text




Southwest Florida Water Management District


PART D
PROJECT DESIGN AIDS


ENVIRONMENTAL RESOURCE PERMITTING
INFORMATION MANUAL


11 A


MANAGEMENT AND STORAGE OF SURFACE WATERS


JULY1996








TABLE OF CONTENTS
PART D PROJECT DESIGN AIDS




PAGE

TABLE OF CONTENTS (PART D) ............................. ... D-2
1. INTRODUCTION ........................................... D-3
2. RAINFALL ................................................. D-4
FIGURE D-1 24-HOUR, 2-YEAR RETURN PERIOD RAINFALL MAP .... D-5
FIGURE D-2 24-HOUR, 2.33 (MAF) RETURN PERIOD RAINFALL MAP .. D-6
FIGURE D-3 24-HOUR, 5-YEAR RETURN PERIOD RAINFALL MAP .... D-7
FIGURE D-4 24-HOUR, 10-YEAR RETURN PERIOD RAINFALL MAP ... D-8
FIGURE D-5 24-HOUR, 25-YEAR RETURN PERIOD RAINFALL MAP D-9
FIGURE D-6 24-HOUR, 50-YEAR RETURN PERIOD RAINFALL MAP .. D-10
FIGURE D-7 24-HOUR, 100-YEAR RETURN PERIOD RAINFALL MAP D-11
RAINFALL DISTRIBUTION .................................. D-12
TABLE D-1 RAINFALL RATIOS (ACCUMULATED 24-HOUR TOTAL) D-13


D-2










1. INTRODUCTION


The Southwest Florida Water Management District has developed "Part D, Project
Design Aids" to provide consistency in the parameters used by District Staff in their
review for environmental resource permitting of surface water management systems.

The design aids were selected solely on their ability to support the intent of the
requirements in the environmental resource permitting rules for management and
storage of surface waters and to identify some common and useful techniques for
evaluating regulatory aspects of surface water management systems. The use of these
design aids for purposes other than those stated in this manual may not be within the
realm of their intended use and could result in a sub-standard design in some
circumstances. It is therefore, incumbent upon the individual designer to exercise
sound engineering judgement in the utilization of the information presented to ensure
the overall integrity of the system and regulatory compliance.


D-3









2. Rainfall


A. Rainfall Duration

The Southwest Florida Water Management District is utilizing a 24-hour storm
event as the standard storm duration for design and analysis purposes for water
quantity permitting evaluation of surface water management systems.

B. Determination of Rainfall Depths

The Southwest Florida Water Management District has developed rainfall maps
for a 24-hour storm duration for the 2-year, 2.33-year, 5-year, 10-year, 25-year,
50-year, and 100-year return periods, as shown in FIGURES D-1 through D-7.
These rainfall maps will be utilized to determine a depth of rainfall in inches
for a specific return period. This depth will be used for design and analysis
purposes for evaluation of surface water and stormwater management systems.

C. Procedure for Determination of the Appropriate Rainfall Amount

1. The approximate location of the project site is to be located on the
appropriate rainfall frequency map.

2. For projects located on an isohyet use the rainfall amount for that line.

3. For projects east of the most eastern isohyet use that eastern most
isohyet as the rainfall amount.

4. For projects between two isohyet the rainfall amount is a straight line
interpolation between the two isohyet. The next higher isohyet line may
be used rather than interpolating.

5. For projects west of the most western isohyet use that western most
isohyet as the rainfall amount.


D-4







SOUTHWEST FLORIDA WATER MANAGEMENT DISTRICT

I I J I


,,.' 7 -.,,_._ l I-


1 C-TL


L


TWENTY FOUR HOUR

TVO YEAR

RETURN PERIOD

RAINFALL MAP


------F--


N


---1


10 0 10 20 30
SCALE MILES


4.5-


LEGEND

RAINFALL CONTOUR IN INCHES.

BOUNDARY OF THE SOUTHWEST FLORIDA
WATER MANAGEMENT DISTRICT

-- COUNTY BOUNDARY


FIGURE D-1
FIGURE D-1


D-5






SOUTHWEST FLORIDA WATER MANAGEMENT DISTRICT

\ \ '----'
I I I i
T t \ ;--
j7' --


I


TWENTY FOUR HOUR

MEAN ANNUAL (2.33 YEARS)


RETURN PERIOD
RAINFALL MAP


fi


)

Vi7


5.5


1 0 10 20 30
SCALE MItES


LEGEND

18/ RAINFALL CONTOUR IN INCHES.
j BOUNDARY OF THE SOUTHWEST FLORIDA
WATER MANAGEMENT DISTRICT
-- COUNTY BOUNDARY


I

FIGURE D-2
FIGURE D-2


D-6


-.-'







SOUTHWEST FLORIDA WATER MANAGEMENT DISTRICT

V ""7' T ^"'P'L


TWENTY FOUR HOUR

FIVE YEAR

RETURN PERIOD

RAINFALL MAP


s-


----1


10 0 10 20 30
SCALE MILES


LEGEND

RAINFALL CONTOUR IN INCHES.

BOUNDARY OF THE SOUTHWEST FLORIDA
WATER MANAGEMENT DISTRICT

-- COUNTY BOUNDARY


LI


FIGURE D-3


D-7






SOUTHWEST FLORIDA WATER MANAGEMENT DISTRICT

L --- ----
[I \


1'r


I,


TWENTY FOUR HOUR

TEN YEAR

RETURN PERIOD

RAINFALL MAP


J A
i /L


---I


N---


10 0 10 20 30
SCALE MILES


LEGEND

18 RAINFALL CONTOUR IN INCHES.

J BOUNDARY OF THE SOUTHWEST FLORIDA
WATER MANAGEMENT DISTRICT

-- COUNTY BOUNDARY


FIGURE D-4
FIGURE D-4


D-8


J







SOUTHWEST FLORIDA WATER MANAGEMENT DISTRICT

L ---- -- '--- _-
/A
-I I \ I /
I
| ^ ^\ i"~
< >^ > -^\ \^ -\_


TWENTY FOUR HOUR

TWENTY FIVE YEAR

RETURN PERIOD

RAINFALL MAP


-L-








-1
I [


10 0 10 20 30
SCALE MILES


LEGEND

/RAINFALL CONTOUR IN INCHES.

BOUNDARY OF THE SOUTHWEST FLORIDA
WATER MANAGEMENT DISTRICT

-- COUNTY BOUNDARY


I
FIGURE 5 --
FIGURE D-5-


D-9


ID-


-z


\I







SOUTHWEST FLORIDA WATER MANAGEMENT DISTRICT

L ----

9.01 8.0 -
j J 1


I,
-I


10.0


TWENTY FOUR HOUR

FIFTY YEAR

RETURN PERIOD

RAINFALL MAP


I
SCA


0


L











. r ^-


11.0


11.0


0 10 20 30


LE mt


LEGEND

/18 RAINFALL CONTOUR IN INCHES.

J BOUNDARY OF THE SOUTHWEST FLORIDA
WATER MANAGEMENT DISTRICT

-- COUNTY BOUNDARY


IUR--E -
FIGURE I-6


D-10


- a


I







SOUTHWEST FLORIDA WATER MANAGEMENT DISTRICT

L. \

i I
-l_ .,


10.0


TWENTY FOUR HOUR

ONE HUNDRED YEAR

RETURN PERIOD

RAINFALL MAP


1-------i


10 0 10 20 30
SCALE MILES


I----.-


LEGEND

10 RAINFALL CONTOUR IN INCHES.
BOUNDARY OF THE SOUTHWEST FLORIDA
WATER MANAGEMENT DISTRICT

-- COUNTY BOUNDARY


\---.-
FIGURE D-7
D-11









D. Rainfall Distribution


The USDA-Natural Resources Conservation Service [formerly Soil
Conservation Service (SCS)] Type II Florida Modified Rainfall distribution
shown in TABLE D-1 is recommended for use in the analysis of the water
quantity portion of the rule. Other distributions which produce similar results
may also be used if appropriate.


D-12










TABLE D-1
RAINFALL RATIOS (ACCUMULATED 24-HOUR TOTAL)


TIME (HR.)
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
6.5
7.0
7.5
8.0
8.5
9.0
9.5
10.0
10.5
11.0
11.5
12.0
12.5
13.0
13.5
14.0
14.5
15.0
15.5
16.0
16.5
17.0
17.5
18.0
18.5
19.0
19.5
20.0
20.5
21.0
21.5
22.0
22.5
23.0
23.5
24.0


SCS TYPE II FL. MODIFIED
.000
.006
.012
.019
.025
.032
.039
.047
.054
.062
.071
.080
.089
.099
.110
.122
.134
.148
.164
.181
.201
.226
.258
.308
.607
.719
.757
.785
.807
.826
.842
.857
.870
.882
.893
.904
.913
.923
.931
.940
.948
.955
.962
.969
.976
.983
.989
.995
1.000


D-13










[BLANK]


D-14










Headquarters of the Water Management Districts -

and the FDEP


FDEP
State Headquarters
Twin Towers Office Building r WMD
2600 Blairstone Road
Tallahassee 32399-2400 Northwest Florida
904-488-0130 Water Management District
Route 1, Box 3100
Northwest District Havana 32333-9700
160 Government Center 904-539-5999


Pensacola 32501-5794
904-444-8300

Southwest District
3804 Coconut Palm Drive
Tampa 336188318
813-744-6100


South Florida District
2295 Victoria Avenue, Suite 364
Fort Myers 33901
941-332-6975

Northeast District
7825 Baymeadows Way, Suite 200B
Jacksonville 32256-7577
904-448-4300


Central District
3319 Maguire Boulevard
Orlando 32803-3767
407-894-7555


Southeast District
1900 South Congress Avenue, Suite A
West Palm Beach 33406
407-433-2650


Suwannee River
Water Management District
Route 3, Box 64
Live Oak 32060-9573
904-362-1001

St Johns River
Water Management District
P.O. Box 1429
Palatka 32178-1429
904-329-4500

Southwest Florida
Water Management District
2379 Broad Street
Brooksville 34609-6899
904-796-7211


South Florida
Water Management District
P.O. Box 24680
West Palm Beach 33416-4680
407-686-8800


FDEP (Florida Department of Environmental Protection)


SWMD (Water Management District)
OCTOBER 1995




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