Onondaga County CSO Abatement Gray Project Update

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2012 Gray Project Update• Harbor Brook Intercepting Sewer Replacement

Project• CSO 044 Conveyance Pipeline• CSO 022/045 Sewer Separation Projects• Clinton CSO Storage Facility• Lower Harbor Brook CSO Storage Facility• CSO 063 Conveyance Project• Floatables Assessment Plan

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Harbor Brook Intercepting Sewer Replacement Project – ACJ Milestone Date 12/31/2013• Replaces a significant portion

of infrastructure that was originally installed in the early 1900’s.

• 7500 feet of interceptor sewer replacement, 5200 feet of local sewer replacement and 1860 feet of sewer rehabilitation.

• Project green infrastructure elements included tree basins, rain gardens and bio-retention basins.

• Estimated annual CSO capture is 0.9% or 36 million gallons.

• Included separation of CSO 013 (Seymour Street) and CSO 016 (Lydell Street)

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CSO 044 Conveyance Project-ACJ Milestone Date 12/31/2011• 500 foot long 96-inch

diameter conveyance pipe line.

• Conveyance will capture the full 1 year 2 hour storm volume from CSO 044.

• Project incorporated storm water capture for pipe line flushing.

• Final restoration included rain gardens.

• Estimated annual CSO capture is 0.3% or 12 million gallons.

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CSO 022/045 Sewer Separation Project• Combined project into one

construction contract to minimize administration costs.

• CSO 022 – Fayette Street and West Genesee Street near Dinosaur BBQ. (Clinton Lower Main Intercepting Sewer CSO Area)

• CSO 045 – Hudson Street and Crescent Street. (Midland CSO Area)

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Clinton CSO Storage Facility – ACJ Milestone 12/31/2013

• 6.5 million gallon storage capacity - volume of storage was increased by 40%.

• Facility will employ green and innovative technologies to reduce operating costs.

• Very challenging construction▫ Limited site space▫ High chloride

concentration in groundwater

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Clinton CSO Storage Facility (cont.)

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Lower Harbor Brook CSO Storage Facility – ACJ Milestone 12/31/2013

• 4.9 million gallon storage capacity – volume of storage was increased by 35%.

• Facility will employ green and innovative technologies to reduce operating costs.

• Very challenging construction▫ Limited site space▫ High chloride

concentration in groundwater

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Future Projects• Floatables Control

Plan• CSO 063 (Emerson

Avenue – Harbor Brook CSO Area) Conveyance Pipe Line.

• CSO 061 (Crehange Street – Midland CSO Area) Sewer Separation

Questions!

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