SUEN7130_Pankti Sanganee

HIDDEN VALLEY PANKTI SANGANEE SUEN 7130 PROFESSOR : SCOTT BISHOP

3 MINUTES TO MIDNIGHT

October 2007 Sea Level

October 2010 Price / Acre

October 2016

Density

PANKTI SANGANEE SUEN 7130 PROFESSOR : SCOTT BISHOP

Glacial Time-line

Annual Departure Precipitation

2075 - Storm and Sea surge

Flood

$100K - $999K $1M-$10M $10M-$100M Over 100M Below 100 100-999 1000-9999 10,000-99,999 Upland Bedrock Coarse Moraine Deposit Lowland Bedrock Glacial Sea bed; Silt + Sand + Clay Fine Moraine Deposit

Glacial Deposit

Urban Transact

PANKTI SANGANEE SUEN 7130 PROFESSOR : SCOTT BISHOP

VALLEYS AND PRECEDENT STUDY Up-Land

+ -192 ‘

Sea level

-192 ‘

+ -90‘

+ Sea level -85‘

+

Malde en Val a le ley y (D:: 19 195f 5feett, L: 2.

2.3 3 mi))

Northern Border Fault

-204‘

Design Intervention

-204‘

+

+

-56‘

+

Sea level

-42‘ -30‘

+

Low-Land

Charles River Valley (D: 100 feet, L: 80 mi)

Bore-well Bedrock Mapping

Sections along Fresh Pond Valley

Cayuga (435 Feet, 37.9 mi)

Bore-well Bedrock Mapping

Seneca (618 Feet, 37mi)

PANKTI SANGANEE SUEN 7130 PROFESSOR : SCOTT BISHOP

OPPORTUNITY SITES AND DE-DENSIFICATION

Hanscom Field 132 ft AMSL

Wilmington 15 mi

Present

+ Hanscom Field

2050

10 mi 5 mi

+ Boston Logan 20 ft AMSL Present 2050

Commercial

> 200

Industrial

50 - 100 100 - 200

Open Space

0 - 50

Transportation

Opportunity Space

Soil +Topographic Gravel Depth (Ft.)

PANKTI SANGANEE SUEN 7130 PROFESSOR : SCOTT BISHOP

Present Population- 3,330 sq/mi Proposed - 13 -15,000 sq/mi

Present Population - 1,900 Sq/mi Proposed - 10-15,000 Sq/mi

Present Population - 4,705 sq/mi Proposed - 10 -12,000 Sq/mi

Re-organization of Urban Fabric

Present - 663 Sq/mi Proposed - 5-10,000Sq/mi

Present - 6,859 Sq/mi Proposed - 500 Sq/mi

Present - 13,841Sq/mi Proposed - 5,000 Sq/mi PANKTI SANGANEE SUEN 7130 PROFESSOR : SCOTT BISHOP

CURRENT : BURRIED VALLEY

Urbanization

Riverines

Impervious Clay

Sand & Gravel Impervious Clay Gravel Sand Glacial Till Bedrock Glacial Till Bedrock

PANKTI SANGANEE SUEN 7130 PROFESSOR : SCOTT BISHOP

PROPOSED : REVEAL THE HIDDEN OPPORTUNITY (30-50 YEARS)

Urbanization

Riverines

Impervious Clay

Sand & Gravel Impervious Clay Gravel & Sand Flooding Glacial Till Bedrock Glacial Till Bedrock

PANKTI SANGANEE SUEN 7130 PROFESSOR : SCOTT BISHOP

INUNDATED LANDSCAPE LANDSCAPE INUNDATED

+ Levees

+

BERM B ERM RM

+

FILL CUT

+ Sa ine Sal in ne Water Waater t Saline

Mo Mou ound ou Mound

Sedime Sed im n ime im imenta nta tatio on Sedimentation

Existing Existi Exi s ng sti g Wat Water er bod b bodyy

LLev Le e ees es es Levees

Reduced Ree uce Red ceed Speed Speed Flow ow w

Fresh Fressh Fr Fre h Water Wateerr Wa Wat

Berm Be B Ber em

0 Flood Bas Basin asin as in

0 Mi M 0.5

M 1.0 Mi

PANKTI SANGANEE SUEN SU EN 7130 PROFESSOR P PR OFES OF ESSO SOR : SCOTT BISHOP BISH HOP

NEW ESTUARINE ECOLOGY (50-100 Years) Transit Zone

High Marsh

High Tide

Mud Flats

Low Tide

ADAPTATION Stage 1 0-10 YEARS

DEVELOPMENT Stage 2 10-20 YEARS

Seeding and Saline waters invade existing Environments

Undisturbed landscape to evolves to form Healthy Estuarine Ecology

MATURE ECOLOGY Stage 3 20-50 YEARS Self-Evolving ecology that incorporates human activity

Glacial Till

Upland

Slat Marsh

Flood Tide

Stage 1 0-10 YEARS

WATER

Visible water system, engineered landforms to let in water. Controlled flooding recharges the ground table and forms a resilient landscape

Bring Back Wetland

Inundated Landscape

Groundwater Recharge

Stage 2 5-15 YEARS

ECOLOGY

The new mature matrix with Estuarine Ecology forms a new micro climate that provides refuge for wild life and humans

Landscaped Terrain

Riparian Matrix

Wild-life Refuge

EARTH WORK Stage 3 5-30 YEARS Terraced Landforms

PHASING

Bank Stabilization

Vegetative Cut-Fill Mound

Sustainable cut and fill and use of existing vegetative decay for mounds help stabilize the bank and water management

PANKTI SANGANEE SUEN 7130 PROFESSOR : SCOTT BISHOP

PHASING 2050

Fresh Pond Valley

2100

Malden Hidden Valley

2150

Charles River Hidden Valley

2200

Neponset River Hidden Valley

PANKTI SANGANEE SUEN 7130 PROFESSOR : SCOTT BISHOP