the past and future of land use on arizona’s navajo reservation · 2012. 3. 28. · winter wind...

making tracksthe past and future of land use

on arizona’s navajo reservation

tiernan doyle | LA602 | professor hall

outline

I. background

II. goals and objectives

III. design concept

IV. tuba city

o city plan

o remediation plan

V. cameron

o city plan

o remediation plan

VI. conclusion

sediment

along the

colorados

mines

of az

site

context

flagstaff

cameron

tuba city

uraniummining

evaporation pond

radonplant

well

upper aquifer

lower aquifer

leaching solution

uranium

mine

history

project

goal

I. goal

o to remediate land and soil

damaged by uranium mining in

ways that will benefit both

human and natural systems.

II. objectives

o enhance public access and

land appreciation

o create plans for managed use

of water resources

o provide models of landuse and

sustainability

footprintsdesign concept

tuba

city

context

winterwindspeeds

12-14 mph

14-15 mph

15-16 mph

cameron

tuba city

flagstaff

prevailing wind direction

city

plan

trails

plan

effect

I. reduce exposure to wind driven sand

II. create highly recognizable area for tourists

and tribal members

III. increase recreation opportunities

IV. increase tourism opportunities

V. connect town amenities

mine

context

planview

20’ groundwater contours

5’ elevation contour

river

native vegetation

phytoremediation

moenkopi wash

garden cross section

470047504800485049004950500050505100

5150

navajo and kayenta sandstone

water table

moenkopi wash

moenkopi formation

mine

tailings pond

native plants

sunflower and amaranth

native plants

water flow

effect

I. Improve water quality

II. reduce uranium contamination flow intomoenkopi wash

III. reduce sand movement

IV. provide visual measure of contamination

fine sand

filter layer

coarse sand

gravel mixture

64

in

ch

es

wa

ter

filt

er

laye

r

12”

12”

40”

cameron

context

windfall

effectscameron

tuba city

flagstaff

prevailing wind direction

12-14 mph

14-15 mph

15-16 mph

sample

dune

edge

increase

biotic

corridor

city

plan

wind protection

connection to grand canyon

rafting river park

effect

I. increase low impact tourism

II. foster river and water qualityawareness

III. connect cameron to grand canyon andtuba city

mine

context

planview

ground water flow

water pollution

airborne pollution

20’ groundwater contours

5’ elevation contour

river

native vegetation

phytoremediation

garden cross section

little colorado

mine

water tablewater flow

native plants

native plants sunflowers and amaranth

4141

4151

4161

4171

effect

I. increase biodiversity along river corridor

II. reduce airborne pollution headed intoreservation

III. clean groundwater to protect well sites

IV. remove excessive uranium and arsenic fromsoil and water

gravel admixture in upper 8”

topsoil

cobbles filled w/ soil

fine-grained soil

geotextile separator

coarse sand

64

in

ch

es

wa

ter

sto

rag

e la

yer

12”

15”

12”

40”

conclusions

In beauty I walk

With beauty before me I walk

with beauty behind me I walk

with beauty above me I walk

with beauty around me I walk

It has become beauty again