Ore g o n Hig hwa ys Se ismic PL US Re po rt Pre se nte d b y: - - PowerPoint PPT Presentation

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Ore g o n Hig hwa ys Se ismic PL US Re po rt Pre se nte d b y: - - PowerPoint PPT Presentation

Sep 08, 2023 294 likes •586 views

Ore g o n Hig hwa ys Se ismic PL US Re po rt Pre se nte d b y: Pa ul Ma the r, ODOT Hig hwa y Divisio n Administra to r Clic k to a dd te xt T he Ore g o n Re silie nc e Pla n Required by the legislature, Transportation is supported

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Ore g o n Hig hwa ys Se ismic PL US Re po rt

Pre se nte d b y: Pa ul Ma the r, ODOT Hig hwa y Divisio n Administra to r

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Clic k to a dd te xt

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T he Ore g o n Re silie nc e Pla n

Required by the legislature, supported by Governor Comprehensive plan, developing a strategic approach Transportation is critical

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Co nc e pts

Retrofit increases resiliency if done incrementally & strategically

Secondary loss of life and long term economic losses can be significantly reduced Strategic planning is critical to success and will require widespread consensus

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T he so lutio n

RETROFIT

For life safety to prevent collapse For serviceability to keep the bridge functional

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Hig hwa y Bridg e L

  • sse s
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Mo de ra te

I-5 Marquam Bridge

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Mo de ra te

I-405 Fremont Bridge

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Co lla pse

US 26 Ross Island Bridge

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Co lla pse

Astoria-Megler Bridge

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Co lla pse

US 30 Longview-Rainier Bridge

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Co lla pse

I-5 Interstate Bridge

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Slig ht to Mo de ra te

I-205 Glenn Jackson Bridge

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Re tr

  • fitting pr
  • g r

e ss

F irst 16 ye a rs sinc e vulne ra b ility wa s ide ntifie d

Years Actions 1994/1997 Prioritized total bridge needs 1155 1985-2012 Phase 1 retrofit added to projects (STIP & OTIA III program) bridges addressed 355 Future Bridges still needing retrofitting (About 200 years at current funding) 800

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Most br idg e s be yond de sig n life

100 200 300 400 500 600 700 800 900 <1950 1950-1959 1960-1969 1970-1979 1980-1989 1990-1999 2000-2009 2010-2014 Number of Bridges Bridges remaining in service
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OT IA br idg e inve stme nt ne e ds to c ontinue

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  • Oregon Highway Seismic

Options Report

  • Identify strategic lifeline

routes

  • Minimize long term economic

damage

  • Address overall bridge

condition

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Ro ute se le c tio n

Survivability

  • Emergency responders
  • Critical care facilities

Life Support

  • Critical care facilities
  • Life support resources
  • Evacuation routes

Economic Recovery • Critical freight corridors

  • Mobility into and out of the region
  • Routes between large metro areas
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Re c o mme nde d life line ro ute s

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T

  • ta l Se ismic PL

US Pro g ra m Co st

Program Phases Total Bridge Cost Landslides/Rockfalls Cost Total Seismic PLUS Program Costs 1 $738 Million $197 Million $935 Million 2 $632 Million $272 Million $904 Million 3 $612 Million $483 Million $1,095 Million 4 $640 Million $126 Million $766 Million 5 $1,432 Million $0 $1,432 Million Total $4.1 Billion $1.0 Billion $5.1 Billion

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Ma jo r Se ismic E ve nt: I so la te d Are a s

Total economic loss: $350 B

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I so la te d Zo ne s: Pha se 1 & 2 Sc e na rio

Reduce economic loss by: $35 B

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I so la te d Zo ne s: F ull Se ismic Pro g ra m

Reduce economic loss by: $84 B

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No n-distre sse d b ridg e s with Se ismic PL US funding le ve ls

0% 20% 40% 60% 80% 100% 2010 2020 2030 2040 2050 2060 Percent Non-Distressed Year Predicted Percent of Non-Distressed Bridges with 'Seismic Plus' Funding Levels (2010 - 2060) Seismic Plus Current Funding Level Out of 2681 State Owned NBI Bridges 80% Target
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Cost = $5.1 Billion Economic Loss Avoided = $250 Billion

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We ne e d to sta r t NOW

T ra nspo rta tio n is ke y to the o ve ra ll re spo nse

Seismic Retrofit by State

5147 Bridges $13 Billion 416 Bridges $177 Million 143 Bridges $44 Million

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Ore g o n Re silie nc e Pla n Re c o mme nda tio ns

Be g in imme diate ly to pre pare c ritic al state hig hway b ridg e s and the transpo rtatio n syste m to withstand a majo r e arthq uake .

  • Additional revenue be identified to complete the

most critical routes.

  • Funding source should be “pay as you go.”
  • Research to ensure the most current technology

and efficient methods are applied.

  • Conduct a thorough inventory and assessment of

transit, port and rail assets.