The Mitchell Block is a LEED Gold urban, infill redevelopment project that implemented multiple sustainable site and low-impact development strategies. Innovative stormwater techniques include rain gardens, bio-retention tree filter, and permeable pavers. As with our other presentations, feel free to contact us for high-resolution original files with slide transitions, etc.

1. MITCHELL BLOCK Fort Collins, Colorado LOW-IMPACT DEVELOPMENT

2. URBAN INFILL REDEVELOPMENT – MOUNTAIN & WALNUT

3. PERMEABLE PAVERS – BASS™ INSTALLATION fully lined with 30-mil PVC impermeable membrane

4. PERMEABLE PAVERS – BASS™ INSTALLATION perforated PVC underdrain…

5. PERMEABLE PAVERS – BASS™ INSTALLATION … runs along entire paver section

6. PERMEABLE PAVERS – BASS™ INSTALLATION similar sub-base course as Odell’s

7. PERMEABLE PAVERS – BASS™ INSTALLATION similar base course as Odell’s

8. PERMEABLE PAVERS – BASS™ INSTALLATION similar bedding course as Odell’s

9. PERMEABLE PAVERS – BASS™ INSTALLATION same manual method of installation

10. PERMEABLE PAVERS – BASS™ INSTALLATION same herringbone pattern, but with perimeter header

11. PERMEABLE PAVERS – BASS™ INSTALLATION void filler brushed into place with a broom

12. PERMEABLE PAVERS – BASS™ INSTALLATION finished product – Mountain Avenue

13. PERMEABLE PAVERS – UDFCD INSTALLATION begins with demo and removal of existing asphalt

14. PERMEABLE PAVERS – UDFCD INSTALLATION Urban Drainage uses more of a sand filter system

15. PERMEABLE PAVERS – UDFCD INSTALLATION this section also lined with 30-mil PVC membrane and has perf. underdrain

16. PERMEABLE PAVERS – UDFCD INSTALLATION note the difference between the sand versus the large aggregate

17. PERMEABLE PAVERS – UDFCD INSTALLATION finished product – Walnut Street

18. FILTERRA BIORETENTION SYSTEM manufactured unit delivered and craned into place

19. FILTERRA BIORETENTION SYSTEM similar to an on-grade Type R inlet with a tree grate out of the top

20. FILTERRA BIORETENTION SYSTEM trash and large debris collect on top of planting media

21. CSU URBAN WATER CENTER – RESEARCH PARTNERSHIP water quality monitoring system installed at sump inlet

22. CSU URBAN WATER CENTER – RESEARCH PARTNERSHIP samples taken from paver section only, Filterra by-passes

23. URBAN RAIN GARDENS rain garden flanks sump inlet at corner of Walnut Street

24. URBAN RAIN GARDENS curb cuts allow water to enter rain garden at both ends

25. URBAN RAIN GARDENS on-grade rain garden further west on Walnut Street

26. URBAN RAIN GARDENS overflow weir controls the on-grade rain garden

27. 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