Specifications

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What is in the electronic reference library (ERL)?
The Iowa DOT ERL includes the Standard Specifications for Highway and Bridge Construction with the General Supplemental Specifications for Construction Projects incorporated in redline and strikeout, supplemental specifications, standard road plans, standard culvert plans,construction manual, materials instructiona memorandums (I.M.s), flagger handbook, Iowa Department of Transportation Phone Book, and the Statewide Urban Standard Specifications. The specifications are hypertext-based files and can be browsed by Microsoft® Internet Explore. The Materials Instructional Memorandums, standard road plans, and standard culvert plans are PDF files that can be browsed with Adobe® Acrobat Reader.

System Requirements.
  • Operating system: Windows NT 4.0, Windows 95/98, Windows 2000.
  • Browser: Internet Explore 4.0 or higher; latest versions of browsers are recommend. If the search engine does not function properly in Internet Explorer, you may need to install or update the Java Virtual Machine. To do this, go to: http://www.microsoft.com/java/, and follow the instructions. If you are using Microsoft Windows XP, you may need to download the Java Virtual Machine at http://java.sun.com/getjava/download.html. The ERL has limited functionality under Netscape Navigator (see Known Problems and Limitations). Functionality limitation are mitigated when Netscape Navigator 4.72 or high is used.
  • CD-drive.
  • Hard disk: The ERL can be copied onto your hard disk and browsed from there. If this is done, 650 MB of hard disk space is required.
  • Adobe Acrobat reader 3.0 or higher is required to browse the PDF files. It is available at no cost; you can download it from http://www.adobe.com/products/acrobat/readstep.html.
Functionality evaluation
Before this version was released, all key functions have been tested on different operating systems and browsers. The ERL was designed for Internet Explorer 4.0 and works best when used on this browser or higher versions. 4. Known Problems and Limitations
  • If the search function is used with Netscape Navigator, the computer may lock up. If this happens, it will be necessary to reboot the computer.
  • The forward and back arrows at the top of the navigation bar do not work with Netscape Navigator.
  • When some Materials Instructional Memorandums pages are opened, an error message might pop up, saying "Unable to find or create the font 'WPIconic SymbolisB'. Some characters may not display or print correctly." If this happens, click the "OK" button on the error message box. We have not found any problem with the browsing or print results after this message has happened.