HomeMy WebLinkAbout2005 - Proposed Canal Dredging OperationsProject PA#8: Collier Creek Canal Dredging Stormwater Improvements
Description
Currently the Collier Creek canal north of CR 512 is in a compromised position due to
an abundance of accumulated sediments. These excess sediments have reduced the
hydraulic capacity of the canals as well as provide a source of TSS, which may
ultimately be washed into the South Prong of the Sebastian River. In addition to the
build up of sediments, there are several areas along the canal where the failure of the
retaining seawalls appears to be imminent. Failure of seawalls would result in the
additional introduction of a significant amount of soil into the canal, thus exacerbating
an already poor condition. This project would include dredging the accumulated
sedimentation from approximately one mile of the Collier Creek canal north of CR512.
hi addition to dredging the accumulated sedimentation, the canal would be dredged to
an increased depth, to increase the volume, resulting in additional wet detention and
providing for additional water quality treatment prior to discharge to the South Prong of
the Sebastian River. The increased dredging depth and the recovery of right-of-way due
to misplacement of the original seawall, may require some seawall modification.
The current conceptual budget estimate for this project is $1,440,000, including design
and construction. This number may change based on final design specifications and
market conditions and level of contributions from adjacent property owners.
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