Green Street Request
Transcript of Green Street Request
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GR EE N ST RE ET S: Cambr idge Subd ivi s ion
Fayetteville, Arkansas APPIAN CENTRE FOR DESIGN
AUGUST 2009
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Table of C ontent s OVERVIEWProject Description 3
Street Sections 9
DETAILS
Plan Views 5
Swale Sections 6
Curb inlet details 7
Tree planting detail 8
Facil ity planting plan 9
MAINTENANCE
Responsibil ity 10
Swale maintenance 10
Permeable Pavers 11Util ity Cuts 11
Annual Schedule 12
EXAMPLES 13
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This document summarizes the request from Appian Centre for
Design for allowance of Green Streets in newly built Fayetteville
City Right of Ways at the proposed Cambridge subdivision. We will
show our plans for street sections, where and what LID e lements
will be used throughout the design of the Cambridge subdivision,
details that we will follow in design (the se may not be exact), and
maintenance.
Appian would like city approval of the direction for street design
prior to actual layout of sidewalks, widths, placement of plantings ,
swales, and drainage ways.
Appian is presenting Cambridge as a pilot in which the City of Fay-
etteville can test an alternative stormwater system in a traditional
neighborhood subdivision. Appian would like to work with the
Fayetteville City officials and low impact offices for a final product
that can be beneficial for d esigner, developers, and city officials
alike.
Key design goals for green streets in Cambridge include:
Increase the ability for streets to hold and filter stormwater1.
runoff, using native plantings and permeable soil matrixes
Improve water quality2.
Control water runoff at its source3.
Improve aesthetic quality of the streetscape4.
Reduce impervious surface5.
D O C U M E N T D E S C R I P T I O N
api.ning.com
www.djc.com
www.werf.org
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S T R E E T S E C T I O N S 4
S T R E E T S E C T I O N S
The street sections shown here represent City of
Fayetteville standard street sections except that t he
greenspace between the sidewalk and the curb has
been increased to ten feet and is now a swale. The
streets will continue to have curb and gutter, however,
there will be concrete stormwater cuts or inlets that
allow stormwater from the streets into swales alon g
the street. In optimum places swales will be con-
tinuous bioswales where the subsu rface will have an
engineered soil matrix transitioning to raingardens in
curb bumpouts or other strategic locations (also with
engineered soil matrixes). In other places the swales
will be continuously vegetated with sod.
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D E T A I L S
All details are subject to Fayetteville Engineering depart-
ment review. These details are not final. They are exam-
ple of how we will engineer specific challenges of swales
in the right of way, along sidewalks, and at on-street park-ing bumpouts. For the time being, please ignore section
cuts. Notes and sections will be drawn as necessary.
CURB EXTENSION PLAN SWALE PLAN PLANTER PLAN
D E T A I L S 5
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D E T A I L S
PLANTER PLAN ALONG ON-STREET PARKING
D E T A I L S 6
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D E T A I L S
CONCRETE INLET TO SWALE,
PLANTER OR CURB EXTENSION
D E T A I L S 7
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D E T A I L S Street trees will be offset to not obstruct water movement.
D E T A I L S 8
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D E T A I L S
SWALE PLANTING PLAN EXAMPLE PLANTER PLANTING PLAN EXAMPLE CURB EXTENSION PLANTING PLAN EXAMPLE
EXAMPLE LEGEND
These are not exact plants to be
used in the Green Street design,
however, a legend will be set up
similarly: common and botanical
name, spacing, placement, zones
delineated per high and low wa-
ter marks, and specimens marked
out.
Planting plans for swales, planters, and curb extensions will be cre-
ated for variety, use and water volume according to engineer s drain-
age report. Plantings, planters and swales will be given stationing to
correspond with street stationing during construction drawings.
D E T A I L S 9
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E X A M P L E S
PLANTERS ALONG ON-STREET PARKING
SWALES ALONG THE STREETS - NOTE TREES PLANTED TO SIDE
INLETS ALONG THE STREET
E X A M P L E S 1 2
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E X A M P L E S
SWALES AND INLETS WITH LANDSCAPING PERMEABLE CONCRETE ALONG BIOSWALE
E X A M P L E S 1 3