H2O F Flow

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H2O F Flow
H2O Flow
F
Location
n: 405 Martin
n Luther Kin
ng, Jr. Blvd, Chapel
C
Hill, NC
Client: Public
P
Arts Offfice/Comm
O
mission, Tow
wn of Chapel Hill
Design Firm(s):
F
Leg
gacyworks
Landsca
ape architec
ct/Project co
ontact: Mich
hael Roy La yne, RLA/AS
SLA/Ph.D.
Email: la
[email protected]
cyworks.com
m
ASLA Ch
hapter: Nortth Carolina
Projectt Specifica
ations
Project Description
D
n: An aesthetic engineerring, site-spe
ecific environ
nmental sculpture create
ed
using a biodegradab
b
b
structure tha
at spotlightss and mirrorss existing wa
ater
le bamboo bioretention
collecting
g and water dispersing la
andforms to slow down and disperse two-point (roof drain a
and
pedestria
an walkway culvert)
c
and overland wa
ater flows du
uring peak sstormwater cconcentration
n
periods.
Project Type:
T
Public en
nvironmental sculpture
A retrofit of an existin
ng property
C a s e N o . 218
Page |2
Design features:
f
Bio
oretention fa
acility, biosw
wale, and em
mbankment e
erosion control
structure
e/artwork.
This pro
oject was de
esigned to meet
m
the folllowing spe
ecific requirrements or mandates:
State sta
atute, county
y ordinance, local ordinance, to mee
et funding criteria, develo
oper/client
preferenc
ce, artwork as
a stormwatter managem
ment tool
Impervio
ous area ma
anaged: less than 5,000
0 sq/ft
Amount of existing green spac
ce/open spa
ace conserv
ved or pres
served for m
managing
ater on site:: 5,000 sq/ft to 1 acre
stormwa
The regu
ulatory enviironment an
nd regulator was suppo
ortive of the project.
Did the client
c
reque
est that othe
er factors be
b considere
ed, such as
s energy sav
vings, usab
ble
green sp
pace, or pro
operty value
e enhancem
ments? The client wante
ed the stormwater contro
ol
sculpture
e to spotlightt and promotte the use of public artw
works as aessthetic engin
neering solutions
to stormw
water manag
gement and other ecolog
gical conside
erations with
hin the landsscape.
Cost & Jobs Ana
alysis
Estimate
ed Cost of Stormwater
S
r Project: >$
$10,000 (Pub
blic funding:: Regional, lo
ocal,
town/cou
unty public art programs involved)
Was a green vs. gre
ey cost analysis perforrmed? No
pact of cons
serving gre
een/open sp
pace to the o
overall costs of the sitte
Cost imp
design/d
developmen
nt project: The
T purpose
e was to dem
monstration o
of use of artw
work to mitig
gate
existing stormwater
s
degradation
d
in an existin
ng open gree
en space.
Cost imp
pact of cons
serving gre
een/open sp
pace for sto
ormwater ma
anagementt over
tradition
nal site design/site dev
velopment approaches
a
(grey infrastructure)?
? No, alterna
ative
cost saving calculatio
ons were no
ot required or completed .
eated: One
Number of jobs cre
Job hours devoted to project:
Planning
P
and Design: 112
2 hrs
Construction:
C
: 408 hrs
Annual
A
Mainttenance: 0 hrs
h
Other:
O
43 hrs
s Stormwaterr/Enviornme
ental education/training
C a s e N o . 218
Page |3
Perform
mance Me
easures
Stormwa
ater reduction perform
mance analy
ysis:
Although
h the runoff rates
r
and dis
scharge velo
ocity rates we
ere calculate
ed for the prreexisting
drainage
e pipes for 10
0-year and 25-year
2
storm
ms to determ
mine if the sttructure coulld support th
he
discharge
e velocity ra
ates, no calcu
ulations werre preformed
d to determin
ne the perce
entage of
stormwatter retained on site.
Commun
nity & economic beneffits that hav
ve resulted from the prroject: Land
dscape desig
gn
students helped with installation while learning grading, drainage an
nd stormwate
er managem
ment
technique
es. Youth and
a commun
nity participattion in the prroject suppo
orted by ongoing stormw
water
and ecolo
ogical educa
ation opportu
unities includ
ding planting
g of rescued
d and native plants and
environm
mental art pe
erformances and lectures
s.
Projectt Recognittion
Public Arrt Commissio
on, Town of Chapel Hill Arts Progra m/Commisssion
Additio
onal Inform
mation
Links to images: Ph
hoto credited
d to Town off Chapel Hill website ww.townofcha
apelhill.org/index.aspx?page=1624
http://ww

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