The purpose of this project was to investigate the potential for collecting and using engineering survey accurate data from a remote controlled (unmanned) platform equipped with a system of advanced survey technologies for hydrographic and bridge scour evaluations. The primary interests in investigating this hydrographic scanning technology is to obtain; a significantly improved representation of the underwater surface as compared to traditional methods, the presence of scour at bridge elements and to minimize the exposure of field surveyors and bridge inspectors to the dangers of working in water, from boats and gathering data from bridges. Additional benefits to explore were cost savings and reducing the time required to gather and produce the subsurface information.
A portable trailer mounted bridge scour inspector was developed and tested under flood conditions for inspecting bridge scour in the vicinity of piers...
This report presents avionics statistics for the 1977 general aviation (GA) aircraft fleet and is the fourth in a series. The statistics are presented...
Links with this icon indicate that you are leaving a Bureau of Transportation
Statistics (BTS)/National Transportation Library (NTL)
Web-based service.
Thank you for visiting.
You are about to access a non-government link outside of
the U.S. Department of Transportation's National
Transportation Library.
Please note: While links to Web sites outside of DOT are
offered for your convenience, when you exit DOT Web sites,
Federal privacy policy and Section 508 of the Rehabilitation
Act (accessibility requirements) no longer apply. In
addition, DOT does not attest to the accuracy, relevance,
timeliness or completeness of information provided by linked
sites. Linking to a Web site does not constitute an
endorsement by DOT of the sponsors of the site or the
products presented on the site. For more information, please
view DOT's Web site linking policy.
To get back to the page you were previously viewing, click
your Cancel button.
United States Department of Transportation
[PDF-3.26 MB]
