| Time Line of Water Quality Impacts in Old Tampa Bay |
| Year: |
Event: |
| 1921 |
Unnamed hurricane (>100mph winds; 10 ft. storm surge) |
| 1922-24 |
Gandy Bridge construction |
| 1927-34 |
Courtney Campbell (Davis Causeway) construction |
| 1941 |
St. Petersburg/Clearwater Airport construction |
| 1946 |
Rainfall total 67" |
| 1946 |
Rainfall total 59" |
| 1947 |
Rainfall total 66" |
| 1949-54 |
Sunshine Skyway construction |
| 1956 |
Gandy Bridge upgrade (addition of second span) |
| 1957 |
Rainfall total 67" |
| 1960 |
Howard Franklin Bridge opens |
| 1960 |
Rainfall total 64" |
| 1960 |
St. Petesburg/Clearwater Airport runway extended |
| 1960 |
Clearwater East WWTP opens, 5 mgd |
| 1966 |
Hurricane Alma (90 mph winds) |
| 1968 |
Hurricane Gladys (85 mph winds) |
| 1971 |
Twin span of the Sunshine Skyway Bridge opens |
| 1971 |
St. Petesburg/Clearwater Airport extension and dredging |
| 1972 |
Hurricane Agnes (75 mph winds) |
| 1972 |
Largo WWTP begins Feather Sound discharge - 13 mgd |
| 1975 |
Gandy Bridge upgrade |
| 1979 |
Rainfall total 67" |
| 1983 |
Rainfall total 61" |
| 1985 |
Hurricane Elena (100 mph winds) |
| 1981-87 |
New Sunshine Skyway construction |
| 1987-91 |
Howard Franklin Bridge upgrade |
| 1991-93 |
Bayside Bridge constructed |
| 1992 |
Huricane Andrew (hits Miami and S. FL; high winds in Tampa) |
| 1995-97 |
Gandy Bridge renovated |
| 1997 |
Rainfall total 68" |
| 1998 |
Strong El Nino reduces water clarity, seagrass cover |
| 2000-02 |
Low rainfall enhances water clarity, seagrass recovery |
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* Sources: Marth and Marth, 1996; Grismer 1950; Baker 2000; |
