Evaluation of overhead support inspection program.

Details

• Creators:
  Gostautas, Richard ; Nims, Douglas ; Steinberg, Eric ; Hu, Liangbo ; Walsh, Ken
• Corporate Creators:
  MISTRAS Group, Inc.
• Corporate Contributors:
  United States. Federal Highway Administration
• Subject/TRT Terms:
  Condition Surveys Data Collection Evaluation Inspection Overhead Traffic Signs Structural Supports
• Publication/ Report Number:
  FHWA/OH-2015/2
• Resource Type:
  Tech Report
• Geographical Coverage:
  Ohio
• Corporate Publisher:
  Ohio. Dept. of Transportation. Research Section
• Abstract:
  This study evaluated the adequacy and frequency of the current structural support inspection program for overhead
  
  sign supports (including bridge mounted), mast arm signal supports and high mast light supports. While ODOT provides
  
  statewide guidance to all 12 districts with regards to support inspection, each district may implement different
  
  procedures to meet the needs of the representative district, as along as state requirements are met. To assess the
  
  current program, a detailed, hands-on inspection was conducted on 202 supports. These results were then compared
  
  to the previous ODOT inspection results which uses a ground based, visual inspection process with sounding of the
  
  anchor bolts by hammer. The hands-on inspection process found almost 1.87 times more deficiencies. While the
  
  majority of them would have likely been observed under the current ODOT process, some deficiencies observed during
  
  the field inspections would not have been observable from the ground. Additionally, it was observed that the different
  
  inspection procedures used by each district often produced inspection reports that varied in the amount information
  
  and level of detail collected during inspection. Overall, there was no evidence that indicated the current ground based,
  
  visual inspection process, or that the maximum 5 year inspection frequency, with regards to overhead sign suppports,
  
  was inadequate and should be changed at this time. Subsequent recommendations were made to address the
  
  inventory process and inspection procedures for each type of support and considers the need to establish the current
  
  condition (i.e. structural adequacy) of every support in the ODOT inventory at the time of inspection.
  
  
• Format:
  PDF
• Funding:
  SJN 134677
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:9b13ea0160f41b30d14c4b6b24c3a5ef35041a22e371e228f0faea902d53033a
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/28618/dot_28618_DS1.pdf
• File Type:
  [PDF - 6.05 MB ]