THE TAMPA BYPASS CANAL: A CA'
C. Lynn Miller, P.E., M.
E. Silverston, Ph.D., AM.
In 1959 and 1960, the west coast of central Floridi
damage due to flooding caused by a series of rainfi
basins that were already saturated. The U.S. Army
was solicited to develop a flood control plan whicl
called the Four River Basins, Florida Project (name
principal river systems in the region). In 1961,
Water Management District was chartered by the Floi
to act as the local sponsor for the project. The I
Florida Project was authorized by Congress in 1962
The design and construction of the portion of the 1
north of the cities of Tampa and Temple Terrace re|
investment in excess of $100,000,000. This part o
a temporary storage area for flood waters on the H,
Lower Hillsborough Flood Detention Area) and a bypi
Bypass Canal) which together can store and divert i
around these major population centers. The surface
area is 63.6 km2 (15,700 acres) with a storage cal
(115,000 acre feet). The total length of the cana"
-f15.7 miles) with six major structures. The large;
capacity of 757 m3 (26,700 cfs). This project is
From the original concept for the project in 1961,
Canal has been subject to an evolutionary process.
11 events fall
Corps of Engin<
d after the foi
he Southwest Fl
ida State Legi!
our River Basir
lan that is sil
resents a publl
the plan consi
ss canal (the 1
xcess river fli
area of the del
city of 0.142
system is 25.:
t having a desi
complete and ft
the Tampa Bypas
project began in 1965, at the beginning of the devil
environmental protection policies. Throughout the
and ecological policies and concerns resulted in mi
cross sections and other design parameters. In thi
coast of Florida experienced a prolonged drought (i
high rainfall events) that has resulted in consider
Canal as a water supply source (the canal itself, i
flood detention area); and the addition of another
limit groundwater loss.
This-paper describes the process by which a single
project has evolved into a multi-purpose project.
between public benefits and impacts has been achie
1Supervisor, Engineering Section, Southwest
District, Brooksville, Florida.
2Project Manager, Engineering Section, South
Management District, Brooksville, Florida.
lopment of publ
jor changes to
1970's, the wi
ith only occasi
ing the Tampa I
ot a reservoir
purpose flood 4
In doing so, a
,ed in an urban
'lorida Water M4nagement
rest Florida Water