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MITCHELL BLOCK
Fort Collins, Colorado
LOW-IMPACT DEVELOPMENT
URBAN INFILL REDEVELOPMENT – MOUNTAIN & WALNUT
PERMEABLE PAVERS – BASS™ INSTALLATION
fully lined with 30-mil PVC impermeable membrane
PERMEABLE PAVERS – BASS™ INSTALLATION
perforated PVC underdrain…
PERMEABLE PAVERS – BASS™ INSTALLATION
…runs along entire paver section
PERMEABLE PAVERS – BASS™ INSTALLATION
similar sub-base course as Odell’s
PERMEABLE PAVERS – BASS™ INSTALLATION
similar base course as Odell’s
PERMEABLE PAVERS – BASS™ INSTALLATION
similar bedding course as Odell’s
PERMEABLE PAVERS – BASS™ INSTALLATION
same manual method of installation
PERMEABLE PAVERS – BASS™ INSTALLATION
same herringbone pattern, but with perimeter header
PERMEABLE PAVERS – BASS™ INSTALLATION
void filler brushed into place with a broom
PERMEABLE PAVERS – BASS™ INSTALLATION
finished product – Mountain Avenue
PERMEABLE PAVERS – UDFCD INSTALLATION
begins with demo and removal of existing asphalt
PERMEABLE PAVERS – UDFCD INSTALLATION
Urban Drainage uses more of a sand filter system
PERMEABLE PAVERS – UDFCD INSTALLATION
this section also lined with 30-mil PVC membrane and has perf. underdrain
PERMEABLE PAVERS – UDFCD INSTALLATION
note the difference between the sand versus the large aggregate
PERMEABLE PAVERS – UDFCD INSTALLATION
finished product – Walnut Street
FILTERRA BIORETENTION SYSTEM
manufactured unit delivered and craned into place
FILTERRA BIORETENTION SYSTEM
similar to an on-grade Type R inlet with a tree grate out of the top
FILTERRA BIORETENTION SYSTEM
trash and large debris collect on top of planting media
CSU URBAN WATER CENTER – RESEARCH PARTNERSHIP
water quality monitoring system installed at sump inlet
CSU URBAN WATER CENTER – RESEARCH PARTNERSHIP
samples taken from paver section only, Filterra by-passes
URBAN RAIN GARDENS
rain garden flanks sump inlet at corner of Walnut Street
URBAN RAIN GARDENS
curb cuts allow water to enter rain garden at both ends
URBAN RAIN GARDENS
on-grade rain garden further west on Walnut Street
URBAN RAIN GARDENS
overflow weir controls the on-grade rain garden
SPECIAL THANKS
Contributing Photographers:
Herman Feissner – Feissner Consulting
Basil Hamdan – City of Fort Collins
Cody Snowdon – Northern Engineering
Project Team:
Bohemian Foundation
Everitt-MacMillan Development
Neenan Company
BHA Design
City of Fort Collins Utilities
CSU Urban Water Center
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