HomeMy WebLinkAboutCouncil Presentation - FY2024 Retreat Presentation - Public Works - DrainageDrainage
Fausto Burruel - Public Works Director
rERENS CEMETARY
Drainage
Needs
Barnett Channel
Marana Channel
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Barnett Channel
• Project No
• Along existing Barnett Road
• Conveyance from CAP
overchutes
• Conveyance across RR (2
bridges)
• Extension of existing I-10 box
culverts
• 6 bridge culvert crossings at
roadways
• Major utility relocations
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Barnett Channel
• Benefits
• Conveys Tortolita Fan
flows
• Removes large area of
NW Marana from FEMA
Floodplain
• Barnett to Kirby Hughes
• Detention/Retention
Relief
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Barnett Channel
Concepts
• Linear Park
• 200 feet wide
• Park expansion k
• Greenbelt area
community whe
conveying flood
• Surrounding roads can
absorb the traffic from
Barnett Road with minimal
impact
• 60 feet wide — �-
• Avoids CMID
• Avoids power pole relocation
• maintenance
• Keeps Barnett Road in place
Barnett Channel
• Projected Costs (based on 2020 NW Drainage Study
• Alternative I and Alternative II = $30M
• Channelized project that keeps Barnett Road in Place
• Possible $8M in savings
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Marana Channel
• Benefits
• Conveys Tortolita Fan flows
• Solves the sheet flow issue that developers are dealing with
• Concentrates flow in one solution
• Eliminates concentrating flow for another developer to address
• Detention/Retention Relief
• Projected Costs
• $13M
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Marana Channel
and
Barnett Channel
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Operation Maintenance
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Current Assets
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• 29.5 Basin Acres
• 70 Channel Acres
• 50 Dry Wells
• 1098 Culverts
• 235 Box & Arch Culverts
• 896 Drainage Inlets & Outlets
*Primarily Within Right of Way
Mandarina Drainage
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Saguaro Bloom
Drainage
Approximately
52 Acres
16
Marana Streets
Saguaro Bloom Drainage System
Parcels
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Saguaro Bloom
Drainage
Approximately
E 36.2 Acres
Saguaro Bloom Drainage
System- approx. 31 acres
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Possible Funding
Opportunities
tormwater U
Negative - Typically added to
utility bill. Marana water does
not serve all of Marana. This
would require a partnership
with COT and Metro Water
General Fun
Negative- Extra burden on
General Fund that does not
currently exist
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Funding
Opportunities
Continued...
Grants
PIIR111ER SHIP �
PC
Partnership
Special
Taxing
District
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Thoughts and Guidance...
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