HILLSBOROUGH COUNTY, FLORIDA AND INCORPORATED AREAS Hillsborough County COMMUNITY NAME
COMMUNITY NUMBER
HILLSBOROUGH COUNTY (UNINCORPORATED AREAS) PLANT CITY, CITY OF TAMPA, CITY OF TEMPLE TERRACE, CITY OF
120112 120113 120114 120115
PRELIMINARY
Federal Emergency Management Agency FLOOD INSURANCE STUDY NUMBER 12057CV004B
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) may not contain all data available within the repository. It is advisable to contact the community repository for any additional data. Part or all of this FIS may be revised and republished at any time. In addition, part of this FIS may be revised by the Letter of Map Revision process, which does not involve republication or redistribution of the FIS. It is, therefore, the responsibility of the user to consult with community officials and to check the community repository to obtain the most current FIS components. Initial Countywide FIS Effective Date: August 28, 2008 Revised Countywide FIS Date: xxxxxxx
TABLE OF CONTENTS – Volume 1 Page 1.0
2.0
3.0
4.0
INTRODUCTION
1
1.1
Purpose of Study
1
1.2
Authority and Acknowledgments
1
1.3
Coordination
4
AREA STUDIED
4
2.1
Scope of Study
4
2.2
Community Description
7
2.3
Principal Flood Problems
9
2.4
Flood Protection Measures
10
ENGINEERING METHODS
11
3.1
Hydrologic Analyses
12
3.2
Hydraulic Analyses
32
3.3
Vertical Datum
41
FLOODPLAIN MANAGEMENT APPLICATIONS
42
4.1
Floodplain Boundaries
42
4.2
Floodways
43
5.0
INSURANCE APPLICATIONS
44
6.0
FLOOD INSURANCE RATE MAP
46
7.0
OTHER STUDIES
46
8.0
LOCATION OF DATA
46
9.0
BIBLIOGRAPHY AND REFERENCES
48
10.0
REVISION DESCRIPTIONS
56
10.1 First Revision
56 i
TABLE OF CONTENTS – Volume 1 - continued Page FIGURES Figure 1 – Transect Location Map
38
Figure 2 – Transect Schematic
39
Figure 3 - Floodway Schematic
44 TABLES
Table 1 – Study Analysts
3
Table 2 – Pre-Countywide CCO Meetings
4
Table 3 – Flooding Sources Studied by Detailed Methods
5
Table 4 - Scope of Revision
6-7
Table 5 – Summary of Discharges
15-30
Table 6 – Parameter Values for Surge Elevations
31
Table 7 – Summary of Coastal Stillwater Elevations
32
Table 8 – Coastal Data
33
Table 9 – Manning's "n" Values
40-41
Table 11 – Community Map History
47
TABLE OF CONTENTS – Volume 2 Table 10 – Floodway Data
1-153
ii
TABLE OF CONTENTS – Volume 3 EXHIBITS Exhibit 1 - Flood Profiles Alafia River Watershed Alafia River Buckhorn Creek North Prong Alafia River Rice Creek South Prong Alafia River Tributary Canal Brooker Creek Watershed Brooker Creek Bullfrog/Wolf Branch Creek Watershed Big Bend Bullfrog Creek Bullfrog Creek Tributary 1 Bullfrog Creek Tributary 2 Bullfrog Creek Tributary 3 Little Bullfrog Creek North Prong Bullfrog Creek Tadpole Creek Tucker Rhodine Curiosity Creek Watershed Curiosity Creek (near City of Tampa) Cypress Creek Watershed Cypress Creek (near City of Tampa) Mill Lake Tributary Delaney Creek Watershed Archie Creek Delaney Creek Delaney Creek Lateral C Delaney Creek Lateral D Delaney Creek Lateral E Delaney Creek Tributary 1 Delaney Creek Tributary 2 North Archie Creek Eastlake Watershed Six Mile Creek Hillsborough River Watershed Bassett Branch Blackwater Creek Clay Gulley East Clay Gulley East Tributary 2 Clay Gulley East Tributary 4 Clay Gulley East Tributary 5 Clay Gulley East Tributary 6
Clay Gulley East Tributary 7 Clay Gulley East Tributary 8 Clay Gulley West Cow House Creek East Canal East Canal Tributary East Canal (Upstream of Frontage Road) Hillsborough River
TABLE OF CONTENTS – Volume 4 EXHIBITS - continued Exhibit 1 - Flood Profiles - continued Hillsborough River Watershed - continued Hollomans Branch Hollomans Branch Tributary 1 Hollomans Branch Tributary 2 Hollomans Branch Tributary 3 Itchepackesassa Creek Itchepackesassa Creek Tributary 1 Itchepackesassa Creek Tributary 2 New River New River East Tiger Creek Trout Creek Two Hole Branch Two Hole Branch Tributary 1 Little Manatee River Watershed Alderman Creek Carlton Branch Carlton Branch Tributary 1 Carlton Branch Tributary 2 Carlton Branch Tributary 3 Carlton Branch Tributary 3.1 Curiosity Creek Curiosity Creek Tributary 1 Curiosity Creek Tributary 1.1 Cypress Creek Dug Creek Dug Creek Tributary 1 Dug Creek Tributary 2 Dug Creek Tributary 3 Gulley Branch Howard Prairie Branch Howard Prairie Branch Tributary 1
iv
TABLE OF CONTENTS – Volume 4 - continued EXHIBITS - continued Exhibit 1 - Flood Profiles - continued Little Manatee River Watershed - continued Howard Prairie Branch Tributary 2 Little Manatee River Little Manatee River Tributary 1 Little Manatee River Tributary 2 Little Manatee River Tributary 2.1 Little Manatee River Tributary 2.2 Little Manatee River Tributary 3 Little Manatee River Tributary 4 Little Manatee River Tributary 5 Little Manatee River Tributary 5.1 Little Manatee River Tributary 6 Little Manatee River Tributary 7 Little Manatee River Tributary 7.1 Little Manatee River Tributary 8 Little Manatee River Tributary 9 Little Manatee River Tributary 10 Little Manatee River Tributary 11 Little Manatee River Tributary 12 Little Manatee River Tributary 13
TABLE OF CONTENTS – Volume 5 EXHIBITS - continued Exhibit 1 - Flood Profiles - continued Little Manatee River Watershed - continued North Lake Tributary Pierce Branch Pierce Branch Tributary 1 Pierce Branch Tributary 2 Pierce Branch Tributary 3 Ruskin Inlet/Marsh Branch South Fork Little Manatee River Wildcat Creek Lower Sweetwater Creek Watershed Lower Sweetwater Creek Tributary 1 Pemberton Creek/Baker Canal Watershed Baker Canal Baker Canal Tributary 1 Baker Canal Tributary 2 Baker Canal Tributary 3
v
Panels 182P-183P Panels Panel Panel Panel
184P-187P 188P 189P 190P
TABLE OF CONTENTS – Volume 5 - continued EXHIBITS – continued Exhibit 1 - Flood Profiles - continued Pemberton Creek/Baker Canal Watershed - continued Baker Canal Tributary 5 Baker Canal Tributary 6 Baker Canal Tributary 7 Baker Canal Tributary 8 Baker Creek/Pemberton Creek/Mill Creek Baker Creek Tributary 1 Baker Creek Tributary 2 Campbell Branch Campbell Branch Tributary 1 Flint Creek Lake Thonotosassa Tributary Mill Creek Tributary 1 Mill Creek Tributary 2 Pemberton Creek Tributary 1 Spartman Branch Rocky/Brushy Creek Watershed Brushy Creek Brushy Creek Branch 2 Brushy Creek Tributary 1 Half Moon Lake Branch Rocky Creek Rocky Creek Tributary 1 Sweetwater Creek Watershed Sweetwater Creek Sweetwater Creek Channel H Tampa Bypass Canal Watershed Tampa Bypass Canal Tampa Bypass Canal Main Ditch Tampa Bypass Canal Tributary 1 Tampa Bypass Canal Tributary 1 South Branch Tampa Bypass Canal Tributary 2 Exhibit 2 - Flood Insurance Rate Map Index Flood Insurance Rate Map