• Event Date : 08-27-2017
  • Location: South Texas, USA
  • Report Date : 09-20-2017
  • Event Category: Hurricane
  • Sequence of Events: No
  • Storm Magnitude: Category 4
  • Report Number: GEER-054
  • DOI: doi:10.18118/G6TW81
  • Event Latitude: 27.836569
  • Event Longitude: -97.048389
  • Team:
    Nina    Stark
    Lee    Wooten
  • Collaborators: GEER; Virginia Tech; Louisiana State University; Clemson University; Texas A&M University; University of South Alabama; WSP USA; University of Texas at Austin; Kansas State University; Jones|Carter; Norwegian Geotechnical Institute; GEI Consultants, Inc.
  • Contributors: Nina Stark; Navid Jafari, Nadarajah Ravichandran; Iman Shafii; Stephanie Smallegan; Patrick Bassal, P.E.; Jens Figlus; R. Lee Wooten; Stacey Kulesza; Chadi El Mohtar; Brian Diaz; Olusola Ilupeju; Marcus Rasulo; Ahmed Hussien; Behdad Mofarraj Kouchaki; Michael V. Little; Ahmet A Mert; and Christopher W . Nelsen
  • Sponsors:
    • NSF,
  • Summary:

    The Geotechnical Extreme Events Reconnaissance Association (GEER) deployed multiple teams of engineers from academia and practicing firms to the coast of Texas in late August and early September 2017 following Hurricane Harvey. 

    Report GEER-054 Part A presents the field observations of the GEER Hurricane Harvey team south made during the field reconnaissance from September 2 to 5, 2017 along a wide coastal zone reaching from Corpus Christi to Galveston, including investigations along the Colorado River near Bay City and along the Brazos River near Rosenberg. This is a preliminary version of the report including a description of field observations and photos, and listings of additional measurements conducted. Detailed data analysis is still ongoing. Documented damages include coastal erosion on barrier islands, including dune toe erosion and overwash, scour at bridge piles crossing the Colorado River and the San Luis Pass, damage to coastal structures, significant sediment deposits from flooding, river bank and sheet pile wall failures, scour in front of a boulder wall, undermining of a beach access road, amongst others. The investigators also visited levees in the region of Freeport and Lake Jackson which were heavily impacted by the flood waters, but performed successfully. A bridge failure occurred in Rosenberg. At the time of the team’s visit, the bridge was almost fully restored. Galveston Island experienced little geotechnical impacts which were mostly associated to erosion on the West end of the island, and at San Luis Pass. The collected data document the extents of erosion and sediment deposition processes and associated damages during an extreme storm (hurricane of category 4) and flooding event. The early team deployment allowed documentation of sediment relocations, little affected by natural infilling, or restoration and clean up. The data may provide assistance for future design and risk assessment.

    Report GEER-054 Part B presents the observations and data from the GEER team that focused primarily on the inland effects of Hurricane Harvey in the Houston area with some observations in the Port Arthur / Beaumont area north of Houston.  Hurricane Harvey affected a wide area along the Texas coast with both high wind and unprecedented, for the area, rainfall totals.  The damage in the Houston and Beaumont / Port Arthur areas was largely due to the flooding and stream flow that resulted from the rain. 

  • File Upload :
    File Title File Version File Date File Type
    Report Part A 1 09-21-2017
    PDF
    Report Part B 1 11-07-2017
    PDF
  • Contact Info :
    Name Phone Email Address
    Nina Stark 540-922-3951 ninas@vt.edu
The work of the GEER Association, in general, is based upon work supported in part by the National Science Foundation through the Geotechnical Engineering Program under Grant No. CMMI-1266418. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the NSF. The GEER Association is made possible by the vision and support of the NSF Geotechnical Engineering Program Directors: Dr. Richard Fragaszy and the late Dr. Cliff Astill. GEER members also donate their time, talent, and resources to collect time-sensitive field observations of the effects of extreme events.