Wetland Wonder

by Blake C. Guillory, P.E., Sr. Water Resour. Engr.; Camp Dresser & McKee, Tampa, FL,
JoAnn J. Macrina, P.E., Proj. Mgr.; Southwest Florida Water Mgmt. District, Tampa, FL,
James K. Collins, P.E., Proj. Mgr.; Pinellas County, FL,

Serial Information: Civil Engineering—ASCE, 1998, Vol. 68, Issue 12, Pg. 60-62

Document Type: Feature article


Pinellas County and the Southwest Florida Water Management District's Surface Water Improvement and Management (SWIM) Department jointly retrofitted an urban drainage basin in Clearwater, Fla., for stormwater attenuation and treatment. The 6.59 ha off-line stormwater facility can handle 25-year, 24-hour storm events while treating stormwater runoff from a 152 ha drainage basin. The site is adjacent to Alligator Creek, which discharges into Tampa Bay. Stormwater travels through a large sediment sump and then flows through a meandering marsh ecosystem. The design allows suspended solids and associated heavy metal particles to settle, extends residence time and permits biological assimilation of nutrients and the removal of oil and grease. An adjacent bike path lined with educational signs provides the public with information about the project and offers a recreational link between a local baseball field and a public park.

Subject Headings: Stormwater management | Drainage basins | Retention basins | Public information programs | Wetlands (fresh water) | Water treatment | Water management

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