Alice Vail Middle School - studio Crosson

Alice Vail Middle School Mitigation Project Alice Vail Middle School, 5350 E 16th St, Tucson, AZ 85711 ARC 451B | 2018F |Nan Liang + Rachel Low

THE PROJECT

During periods of heavy rain, Alice Vail Middle School and its adjacent streets become subjected to heavy flooding. The amount of accumulated water on site poses as a potential safety risk to students, and often goes to waste when it drains into the nearby underground wash along Craycroft road. Our project’s objective is to improve water mitigation by updating excess grass areas, provide new landscaping for desert educational programs, and to utilize collected storm water on site efficiently. We hope the updates will benefit both the local resident and students by encouraging community engagement and gathering.

CONTENT

Issue

04

Site

16

Drylands Garden

28

Oasis Field

34

Info Graphic

40

05 ISSUE

URBAN NETWORK &WATER SYSTEMS

B

CEDE T PREry Field N -

le Mi s ile M

1 5

pt

D C

de ta

etation basi nr n tio

er Ch

0

s ile M

ield con sis F ce Oa

6

alamo wash

water resource

B

arcadia wash

Alamowash Watershed

C

sahuara wash

fena floodplain

D

van surenwash

15

A

M

urban open space

s ile

1

educational institutation

A

ALAMOWASH WATERSHED AREA: 10.6 sq miles CITY AREA: 236.50 sq mi (612.55 sq km) NOTED WATERSHED ISSUES: Alice Vail Middle School is located in the AlamoWash Watershed, but in higher elevation. Storm water would runoff from the school site to the Alamo Wash.

nta r

l - Scho hoo ol Sc &

n de

ids av

y

D

CEDE PREon ElemNeT

borhood Ga igh Ne r

S Swan Rd

Recently, Pima County has the Alamo Wash Basin Management Study encompassing 9.5 square miles flooding areas which includes the Alamo, Arcadia, Van Buren and Sahuara washes in the watershed.

D

C E 5th St

od

Shading rk a tP

l - Neighbor ho oo ch

Vail Middle e c i S Al

B A

E 22nd St S Kolb Rd

SITE

Alamowash Watershed drainage 1 mile

N

7

sh - Ad j a c wa en

ISSUE

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.

Mu

lt i - U n it H o

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H. H

s e rt L a n d

s in

.

De

ap

A

COMMUNITY ANALYSIS - ADJACENT PROGRAMS

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a Li n d a E

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B.

A.

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B.

C.

d iti o n N

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rhood

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P D. D

e s e rt Ai r e

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t h S t r e e t Si

ew

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H.

f t R d / W ill s h i

g hts

F. C

H ei

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o cr

re

Craycroft Rd

F.

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G.

D.

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u e ss

E. C

r o f t S m a ll B

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c ay

E.

9

ISSUE

D e s e rt L a

nd

ape

E xs

g tin

sc

is

FLOODING ISSUES ON SITE

So

Play A re u th

A. Heavy saturation located on the west side of the school.

Flooding occurs in the garden and overflows into southern play area.

E. 16 St

A.

a

B. an

l

Sh

llo

e li e f C h wR

ne

a

B. Minor flooding with water coming from nearby Desert Aire Park and roof run off.

C. Storm water comes from the Neighborhood Channel and drains into lower soccer ball field.

Major source of flooding.

Critical Flood Areas Water Accumulation Flooding Sources 10

E. 18 St

Craycroft Rd

E. 16 St

Flo

o d P l ai n

D. Higher planed soccer feild directs rainwater towards lower field.

Topography drains water towards Craycroft Road / Wash.

Gr

a t e / G utt e r E. Drains whatever water is caught in catch basin into underground wash.

D.

Ca

E.

C.

Craycroft Rd

F.

t c h B a si n

F. Recives water from Flood Plain and from Relief Channel

11

ISSUE COMMUNITY FRAMING - TUSD INTERVIEW

E. 16th Street

A.

B. B.

A.

S. Beverly Ave.

A.

E. 16th Street

S. Beverly Ave.

B.

C.

A. C.

D. E. 18th Street

12

E. 18th Street

BLUE - RAINY DAY ISSUES eussI yaD yniaR - eulB :stnemmoc

S. CRAYCROFT RD

eussI ytetaS - wolleY :stnemmoc

is no nrecnoC rojaM - deR :stnemmoc

A Area - Offsite flow that floods garden and exterior roadways.

B Area - Interior courtyard floods due to accumulated plant debrie.

Water floods into south play area.

C Area - Transforms into flood plain and becomes safety hazzard.

D Area - Offsite water floods into school property and floods drainage system YELLOW - SAFETY ISSUES A Area - If not properly maintained, too many trees can produce debrie that will clog drainage systems.

B Area - Landscaping obscures drivers from looking left and right.

Refrain from excessive landscaping.

C Area - Flooding in school courtyard, safety hazzard.

RED - MAJOR CONCERNS ON SITE

S. CRAYCROFT RD

N rof eC. calP dooG - neerG :stnemmoc

A + B Areas - Adding too many trees could cause more safety issues (i.e Cars can't see, debrie causes drainage issues.)

C Area - Flooding from neighborhood is a big concern for safety.

Overflows Arcadia wash.

GREEN - GOOD PLACE FOR NEW LANDSCAPING A Area - High potential shade area for students and water Harvesting opportunities - Advised Precedent: Davidson Elementary School 13

ISSUE

72

25

SOLUTION

2574

Initial Off Site Flooding

Retention Systems N

14

0

30

60

90

120 ft

2574

Mitigated Water Flow

2576

15

2572 2570

16

17 SITE

17

SITE SANKEY-LIKE DIAGRAM neighborhood wash

oasis field

rain water drylands garden

roof run off landscape boundary street run off street drainage

neighborhood landscape

18

e

evaporation

retention

vegetation (transpiration)

infiltration

detention

19

SITE SYSTEM AXON average rain water capture 72,080.42 gal

average rain water capture 72,080.42 gal

LB DG

OF DG

OF

Oasis Field

DG

Drylands Garden

LB

Landscape Boundary OF

0’

20

0’

OF

64’

128’

192’

Oasis Field

256’

DG

Drylands Garden

LB

Landscape Boundary

64’

128’

192’

256’

LB

Site Plan: Low Value

72

25

2574

2572

2570

2574

2576

1 gal Plant A 1 gal Plant B 10 - 15 gal Plants Shading Structure N 0

30

60

90

120 ft

21

SITE

72

5 SITE PLAN: HIGH VALUE2

2574

SEC

22

2570

SEC

0

30

60

2572

N 90

120 ft

23

SITE SITE SECTION walkway channel

shading structure

18 ft

30 ft

perforated metal 2 ft

2 ft

LB

24

15 ft

Drylands Garden

Shadded Walkway from Drylan

bio swale

1 ft

landscape boundary

1 ft

16 ft

nds Garden to Oasis Field

20 ft

1 ft

20 ft

LB

Oasis Field

0

30

60

90

120 ft

25

SITE

Single Element STEATING STEATING STEATING

SHADING SHADING SHADING

CHANNEL CHANNEL CHANNEL

1 1

shading structure shading shading structure structure

1 1

seating wall seating seating wall wall

1 1

daylight wash daylight daylight wash wash

2 2

microbasin microbasin microbasin

2 2

terrace seating terrace terrace seating seating

2 2

perforated walkway perforated perforated walkway walkway

drainage drainage drainage

neighborhood wash

3 3

26

friendly pedestrain friendly friendly pedestrain pedestrain

SG smallSG gravel SG small gravel small gravel

SOIL SOIL SOIL

S sand S S sand sand

3 3

LG largeLG gravel LG large gravel large gravel

3 3

wied steps seating wied wied steps steps seating seating

G grass G G grass grass

A1 1 galA1 plant A1 1 gal plant 1 gal plant

neighborhood wash neighborhood wash

bioswale bioswale bioswale

VEGETATION VEGETATION VEGETATION

B1 1 galB1 B1plant 1 gal plant 1 gal plant

5 5 gal5 5plant 5 gal plant 5 gal plant

15 15 gal15 15plant 15 gal plant 15 gal plant

KIT OF PARTS

Prototype Basin Drylands Garden - High Value

Drylands Garden - Low Value

community garden

community garden

1 2 2 LG A1 B1 15

1 2 LG Oasis Field

school garden

multiuse soccer ball field - Low Value

S monsoon garden

2 LG A1 B1 5 15

multiuse soccer ball field - High Value

2 G LG

monsoon garden

LG Landscape Boundary Low Value

3 1 1 15 High Value

3 1 1 A1 B1 5 15 27

28

29 DRYLANDS GARDEN

29

DRYLANDS GRADEN SECTION PERSPECTIVE WITH DETAIL Design replaces the original dead grass space with slightly tiered off landscapes and gravel to reduce flooding. Space is transformed into miniature gardens for community gatherings. Trees provide shade.

The school garden invites the neighboring community to collaborate with students to take care of the shared garden space. It provides an opportunitiy for students to learn about farming and to strengthen the relationship between the school to the community.

Similar to Davidson Elementary School.

Macro Basin Provides shade during the heat of day and drainage during monsoon season.

Monsoon Garden Used for school social activities, provides shade, and serves as an evaporative cooling pool.

School Garden Concept Reference Davidson Elementary School 30

Enviromental lab spaces for students to learn about the desert enviroment or horticulture.

R

STO

OR

ET

STRE

BO

EIGH

MN

O M FR

D/ R AN

Communication Garden A space to enourage outdoor activities and community engagement. Provides shade and monsoon water mitigation.

31

DRYLANDS GRADEN FUNCTION MORNING

SCHOOL SESSION

OUTDOOR ACTIVITIES

CLASS TIME

12:00 A.M.

2:00 A.M.

4:00 A.M.

6:00 A.M.

8:00 A.M.

10:00 A.M.

MORNING

aprox: 6:30 a.m. - 8:00 a.m.

Outdoor class space and learning labatory

SPRING SESSION

AFTERNOON

LUNCH TIME

12:00 P.M.

OUTDOOR ACTIVITIES

2:00 P.M.

SCHOOL SESSION

approx: 8:00 a.m - 3:00 p.m Outdoor classes and Break space

GOING HOME

4:00 P.M.

6:00 P.M.

8:00 P.M.

10:00 P.M.

AFTERNOON

approx: 3:00 p.m. -5:00 p.m.

Idle waiting space for pick up and after school activities

MONSOON

FALL SESSION

Storm Water

124,403.52 GAL

634,457.95 GAL

JAN

FEB

MAR

SPRING SESSION January - June outdoor classes and break spaces

32

APR

MAY

SUMMER

1,393,319.43 GAL

JUN

May - Early August Community gathering space and events

JULY

MONSOON

AUG

June - August Collecting storm water

1,393,319.43 GAL

SEP

OCT

FALL SESSION

NOV

August - December outdoor classes and break spaces

DEC

Outdoor activities in the Community Garden with shading.

Views to the Monsoon Garden and the Desert Aire Park.

33

34

35 OASIS FIELD

35

OASIS FIELD SECTION PERSPECTIVE WITH DETAIL The original soccer field has been re-landscaped to reduce the open grass space. The addition of catch basins mimic desert washes to help to reduce storm water flooding and serves as desert education spaces. New seating spaces with trees provide shade for the children druring the hotter months. The overall space has been redesigned to be utilized in all weather conditions and seasons.

Natural Bioswale Encourages natural desert landscaping to provide water mitigation and to serve as educational spaces for students.

Neighborhood Water Mitigation Storm water block helps to redirect incoming run off from nearby neighborhood and into bioswale.

Walkway Concept Reference Cherry Field 36

Students can observe the natural bioswale as water flows freely between the Oasis Fields and Drylands Garden.

low

overf

low

overf

low

overf

low

overf

low

overf

ry om d orm fr asis field o low st overf arden to g s d n la

low

overf low

overf

r from ash wate w storm borhood h ig ne

Oasis Fields Retains the original soccer fields and encourgaes students to learn about their surrounding desert enviroment.

37

OASIS FIELD FUNCTION MORNING

SCHOOL SESSION

STUDENTS ARRIVING AT SCHOOL

12:00 A.M.

2:00 A.M.

4:00 A.M.

6:00 A.M.

OUTDOOR ACTIVITIES

8:00 A.M.

10:00 A.M.

MORNING

aprox: 6:30 a.m. - 8:00 a.m.

All students should be reporting to their classrooms

SPRING SESSION

AFTERNOON

LUNCH TIME

12:00 P.M.

OUTDOOR ACTIVITIES

GOING HOME

2:00 P.M.

SCHOOL SESSION

approx: 8:00 a.m - 3:00 p.m Outdoor classes and Break

4:00 P.M.

6:00 P.M.

8:00 P.M.

10:00 P.M.

AFTERNOON

approx: 3:00 p.m. -5:00 p.m.

After school sports and activities . Waiting location.

MONSOON

FALL SESSION

Storm Water

overflow to the drain 124,403.52 GAL

634,457.95 GAL

JAN

FEB

MAR

SPRING SESSION January - June outdoor classes and break spaces

38

APR

MAY

SUMMER

1,393,319.43 GAL

JUN

May - Early August School out of session,

JULY

MONSOON

AUG

June - August Collecting storm water on street

1,393,319.43 GAL

SEP

OCT

FALL SESSION

NOV

August - December Outdoor classes and break spaces

DEC

View of Southern most Soccer Field. Bioswale mitigates flooding and allows students to learn about the desert enviroment.

39

40

41 INFO GRAPHIC

41

INFO GRAPHIC FLOOD MITIGATION

Peak Discharge - IN 298 cfs

Peak Discharge - IN 193 cfs

Peak Discharge - IN 134 cfs

Peak Discharge - OUT 76 cfs

Peak Discharge - OUT 153 cfs

Peak Discharge - OUT 40 cfs

Detla Discharge 70%

Detla Discharge 28%

Detla Discharge 49%

6.8 acre-ft Total Storage

8.5 acre-ft Total Storage

10.1 acre-ft Total Storage

10 YR

25 YR

100 YR

42

shading

desert landscape

education communication

activities

43

INFO GRAPHIC HIGH VALUE PLAN BUDGET hydroseed: soil stabilizer & basin bottoms - 85,639 SqFt X $0.05 - - $4,282

1 gal plant - 124 x $6 - - $744

3 to 5 gal plant - 66 x $12 - - $792

15 gal plant - 123 x $40 - - $4,920

concrete - 61,862 SqFt x $65 - - $4,021,057

subtotal - - $5,859.645

44

steel sheets - 157 x $50 - - $7,850 tensile shade structure- 52 x $35000 - - $1,820,000

contingency - 20% - - $1,171,929

total - - $7,031,573

45

46

View from Oasis Field under the shading structure to the northern neighborhoods.

47

48