HomeMy WebLinkAbout2007-244 INDIAN RIVER COUNTY a
PUBLIC WORKS DEPARTMENT
STORMWATER ENGINEERING
4375 43rd AVENUE
VERO BEACH, FLORIDA 32967
Phone : (772) 226-3478
Fax: (772) 226-3481
MEMORANDUM for PUBLIC WORKS MATTERS
BEFORE THE BOARD OF COUNTY COMMISSIONERS
TO : Joseph A. Baird , County Administrator
THROUGH : James W. Davis , P . E . , Public Works Director/
FROM : W. Keith McCully, P . E . , Esq . , Stormwater Engfneer «16 -j �w� Fme
Clifford J . Suthard , P . E. , Project Engineer Ga , J71-) .J
SUBJECT: RECOMMENDATION OF AWARD - MAIN RELIEF CANAL POLLUTION
CONTROL SYSTEM PROJECT NO . 0113 , BID NO. 2007066
DATE : July 13 , 2007
DESCRIPTION AND CONDITIONS :
The subject project is the continuation of implementing the adopted East Indian River
County Master Stormwater Management Plan . When installed , the Main Relief Canal
Pollution Control System will remove tremendous quantities of pollutants and trash from
canal water before the water enters the Indian River Lagoon (hereinafter "Lagoon") ,
thereby improving the Lagoon 's water quality, leading to increased seagrass coverage
and helping the County comply with forthcoming total maximum daily loads established
for the Lagoon by the Florida Department of Environmental Protection ( hereinafter
"FDEP") and the U . S . Environmental Protection Agency.
On May 11 , 2004, the Board of County Commissioners unanimously approved a Work
Order for final design services for regional stormwater pollution control systems in the
Main Relief Canal, the South Relief Canal , and the North Relief Canal of the Indian
River Farms Water Control District ( hereinafter " IRFWCD" ) . The stormwater pollution
control systems ( hereinafter "vortex systems" ) design resulting from that Work Order
would use self-cleaning bar screens , vortex treatment units , and screw press
dewatering units to physically capture and remove material from the canal water. Final
engineering design was competed and the engineer's final opinion of probable
construction cost was approximately S1 3 . 7 million , about double the engineer's 30
percent design construction cost estimate . The systems' unexpected high estimated
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FAPubllc WorksVKvthM\.Stormwater Projects\Vortex System RedesignWAgenda ItemslReoommendation of Award - Main Relief Canal
Polludon Control System - Lucas.doc 469