Cub Brid Lesson02 Activity1 Bridgefailureimages

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    Bridge Failures

    What if the bridges you depend upon every day

    collapsed because they could no longer withstand

    the forces of the load placed on them everyday?

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    In addition to causing the failure of a protective town levee and

    extensive flooding of most homes and property, flash flooding

    caused the destruction of the I-20 bridge over Salt Draw

    between Toyah and Pecos, TX.

    What if the bridges in your

    town collapsed because of

    extreme weather, such as

    flooding or earthquakes?

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    Northern California bridge damage caused by a

    6.9 magnitude earthquake in 1989.

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    Northern California freeway bridge damage caused by

    a 6.9 magnitude earthquake in 1989.

    How important is it that engineers testbridge materials and designs to failure?

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    Northern California freeway bridge damage caused by

    a 6.9 magnitude earthquake in 1989.

    Do you trust that the

    bridges you use every daywere designed and are

    maintained to be safe?

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    The I-35 interstate bridge in downtown Minneapolis, MN,

    collapsed into the Mississippi River during the rush hour

    on August 1, 2007, killing 13 people and injuring 100.

    How important is bridge

    maintenance to you?

  • 8/13/2019 Cub Brid Lesson02 Activity1 Bridgefailureimages

    7/10I-35W bridge collapse in Minneapolis, MN

    What might be possible causes

    for a bridge collapse?

    http://www.dot.state.mn.us/i35wbridge/photos/ground/aug2/images/DSC_7428nv_jpg.jpghttp://www.dot.state.mn.us/i35wbridge/photos/ground/aug2/images/DSC_7429nv_jpg.jpg
  • 8/13/2019 Cub Brid Lesson02 Activity1 Bridgefailureimages

    8/10I-35W bridge collapse in Minneapolis, MN

    http://www.dot.state.mn.us/i35wbridge/photos/ground/aug2/images/DSC_7487nv_jpg.jpg
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    Image Sources

    Federal Highway Administration, US Department of Transportation,

    http://www.tfhrc.gov/pubrds/summer95/p95su23.htm

    ITL Program, University of Colorado at Boulder

    NOAA, National Weather Service Forecast Office, Midland/Odessa, TX,http://www.srh.noaa.gov/maf/HTML/nwaaward.html

    US Geological Survey, Earthquake Hazards Program,

    http://neic.usgs.gov/neis/eq_depot/usa/1989_10_18_damage/

    US Geological Survey, Earthquake Hazards Program,

    http://neic.usgs.gov/neis/eq_depot/usa/1989_10_18_damage/

    US Geological Survey, Earthquake Hazards Program,

    http://neic.usgs.gov/neis/eq_depot/usa/1989_10_18_damage/

    http://www.tfhrc.gov/pubrds/summer95/p95su23.htmhttp://www.srh.noaa.gov/maf/HTML/nwaaward.htmlhttp://neic.usgs.gov/neis/eq_depot/usa/1989_10_18_damage/http://neic.usgs.gov/neis/eq_depot/usa/1989_10_18_damage/http://neic.usgs.gov/neis/eq_depot/usa/1989_10_18_damage/http://neic.usgs.gov/neis/eq_depot/usa/1989_10_18_damage/http://neic.usgs.gov/neis/eq_depot/usa/1989_10_18_damage/http://neic.usgs.gov/neis/eq_depot/usa/1989_10_18_damage/http://www.srh.noaa.gov/maf/HTML/nwaaward.htmlhttp://www.tfhrc.gov/pubrds/summer95/p95su23.htm
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    Image Sources

    Minnesota Department of Transportation,

    http://www.dot.state.mn.us/i35wbridge/photos/aerial/aug-

    3/9_1_1_8.jpg

    Minnesota Department of Transportation,

    http://www.dot.state.mn.us/i35wbridge/photos/ground/aug2/pages/DS

    C_7429nv_jpg.htm

    Minnesota Department of Transportation,

    http://www.dot.state.mn.us/i35wbridge/photos/ground/aug2/pages/DS

    C_7428nv_jpg.htm

    Minnesota Department of Transportation,

    http://www.dot.state.mn.us/i35wbridge/photos/ground/aug2/

    pages/DSC_7487nv_jpg.htm

    More photos at: Minnesota Department of Transportation,

    http://www.dot.state.mn.us/i35wbridge/photos/

    http://www.dot.state.mn.us/i35wbridge/photos/aerial/aug-3/9_1_1_8.jpghttp://www.dot.state.mn.us/i35wbridge/photos/aerial/aug-3/9_1_1_8.jpghttp://www.dot.state.mn.us/i35wbridge/photos/ground/aug2/pages/DSC_7429nv_jpg.htmhttp://www.dot.state.mn.us/i35wbridge/photos/ground/aug2/pages/DSC_7429nv_jpg.htmhttp://www.dot.state.mn.us/i35wbridge/photos/ground/aug2/pages/DSC_7428nv_jpg.htmhttp://www.dot.state.mn.us/i35wbridge/photos/ground/aug2/pages/DSC_7428nv_jpg.htmhttp://www.dot.state.mn.us/i35wbridge/photos/ground/aug2/pages/DSC_7487nv_jpg.htmhttp://www.dot.state.mn.us/i35wbridge/photos/ground/aug2/pages/DSC_7487nv_jpg.htmhttp://www.dot.state.mn.us/i35wbridge/photos/http://www.dot.state.mn.us/i35wbridge/photos/ground/aug2/images/DSC_7487nv_jpg.jpghttp://www.dot.state.mn.us/i35wbridge/photos/ground/aug2/images/DSC_7428nv_jpg.jpghttp://www.dot.state.mn.us/i35wbridge/photos/ground/aug2/images/DSC_7429nv_jpg.jpghttp://www.dot.state.mn.us/i35wbridge/photos/http://www.dot.state.mn.us/i35wbridge/photos/ground/aug2/pages/DSC_7487nv_jpg.htmhttp://www.dot.state.mn.us/i35wbridge/photos/ground/aug2/pages/DSC_7487nv_jpg.htmhttp://www.dot.state.mn.us/i35wbridge/photos/ground/aug2/pages/DSC_7428nv_jpg.htmhttp://www.dot.state.mn.us/i35wbridge/photos/ground/aug2/pages/DSC_7428nv_jpg.htmhttp://www.dot.state.mn.us/i35wbridge/photos/ground/aug2/pages/DSC_7429nv_jpg.htmhttp://www.dot.state.mn.us/i35wbridge/photos/ground/aug2/pages/DSC_7429nv_jpg.htmhttp://www.dot.state.mn.us/i35wbridge/photos/aerial/aug-3/9_1_1_8.jpghttp://www.dot.state.mn.us/i35wbridge/photos/aerial/aug-3/9_1_1_8.jpghttp://www.dot.state.mn.us/i35wbridge/photos/aerial/aug-3/9_1_1_8.jpg