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Assessment of Asbestos Containing Materials in Idaho Bridges
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2021-05-01
[PDF-2.02 MB]
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Edition:Final Report 01/01/2019 - 06/15/2021
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Abstract:The Idaho Transportation Department (ITD) has more than 4,000 highway bridges under its control in the State of Idaho. For bridges built before 1980, the Environmental Protection Agency (EPA) requires State Transportation Departments to provide inspection reports concerning the presence of asbestos materials for any bridge that is eligible for major rehabilitation or demolition activities. To assist with such inspections, this project reviewed “as-built” plans of a representative sample of ITD bridges that were constructed between 1918 and 1980 and 190 bridges scheduled for work in the next six years. From a total of 443 bridge plans reviewed, information concerning (a) year of construction, (b) location by district, (c) construction material, and (d) type of design, was summarized along with any evident signs of potential use of materials containing asbestos. Additionally, the researchers reviewed available asbestos inspection reports (AIRs) archived by the six ITD highway district offices, and within the ProjectWise and File 360 databases maintained by ITD. This search revealed 89 AIRs for a total of 114 bridges. None of the bridge plans or the inspection reports indicated any signs of asbestos containing materials (ACMs) in the ITD bridges. For easier access by ITD personnel, all AIRs have been uploaded to a unique folder located in ITD’s ProjectWise database, along with an Excel file which summarizes this data. Due to the variability of AIRs submitted by contractors in the past, the researchers recommend the use of a new template form to ensure that all required information is reported in the AIRs submitted to ITD.
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