h-gaps houston-galveston area protection system

H-GAPS Houston-Galveston Area

Protection System

By SSPEED CenterRice University

SSPEED CenterThe Center is based out of Rice University and collaborates with leading academic institutions, the private sector and

public entities.

Major funding from Houston Endowment

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SSPEEDSSPEED

3ADCIRC Model data courtesy of

Dr. Clint Dawson, U. of Texas

Existing Conditions

Houston Ship Channel Industrial Complex

50,000 + direct jobs $100 billion + potential damage

Ike at Point 7 with Increased Winds (25 ft Surge)

Existing Conditions + Centennial Gate

Option A SH 146

Option B Barbours Cut

FRED HARTMAN BRIDGE OPTION ‘A’

OPTION B2

Evaluation of Effects

• Consideration of Land Use Impacts of Construction and Operation

• Computer Modeling of With and Without Option A and Option B under Different Scenarios

• Computer Modeling of San Jacinto flood flows and surge suppression

11

Existing Conditions +Green Options

Lone Star Coastal National Recreation Area (LSCNRA)

Lone Star Coastal Exchange (LSCE)

Landscape-Scale Green Space Alternatives

Proposed Lone Star Coastal National Recreation Area

Public Leadership and Rules

Sec. James Baker John Nau

Partnership Among Local, State and Federal Governments and NGOs

No New Regulation

No Involuntary Participation

Trading Platform Sellers

Buyers

Proposed Lone Star Coastal Exchange (LSCE)

Flood StorageConservation of Existing Habitat

Neo-tropical Migrant Habitat CreationCoastal Wetland Creation/Migration

Migratory Waterfowl Habitat CreationPrairie Habitat Creation

Forest Lands Habitat CreationCarbon Sequestration

Endangered Species Habitat

$

Potential Corps or FEMA Value Proposition

Marsh footprint: 2004; 2050; 2100

The “Bookends”

Centennial Gate +LSCNRA and LSCE

22

HEZ population = +/- 1,200,000 in 2010HEZ Projection = + 700,000 to 2040

The Houston Galveston Area Council estimates that it would take 36 hours to

evacuate 1 million residents under perfect conditions.

Existing Conditions+ Green Options+ Centennial Gate+ Elevated U.S. 87

Existing Conditions+ Green Options+ Centennial Gate + Elevated U.S. 87+ Elevated FM 3005

Existing Conditions+ Green Options+ Centennial Gate + Elevated U.S. 87+ Elevated FM 3005+ Galveston Levee

Existing Conditions+ Green Options+ Centennial Gate + Elevated U.S. 87+ Elevated FM 3005+ Galveston Levee + Oyster Reefs

Existing Conditions+ Green Options+ Centennial Gate + Elevated U.S. 87+ Elevated FM 3005+ Galveston Levee + Oyster Reefs+ Dredged Material

Existing Conditions+ Green Options+ Centennial Gate + Elevated U.S. 87+ Elevated FM 3005+ Galveston Levee + Oyster Reefs+ Dredged Material+ Elevated SH 146

Enhanced Evacuation With All Alternatives

Next Phase of Houston Endowment Grant

Develop H-GAPS into a Specific Proposal

Refine the Lone Star Coastal Exchange

Critically Examine the Ike Dike

Review of Biggert-Waters