Appendixes How to View Drawings
The Missoula Technology and Development Center's drawings have been converted to a format (.dwf) that can be displayed after special viewers (WHIP or Volo View Express 2) have been installed. Both viewers allow the bridge drawings to be viewed and printed using a menu that appears as you right-click on a drawing in Internet Explorer. The viewers also allow you to zoom into or pan across the drawing. You will not be able to edit the drawing.
The WHIP viewer (3.5 megabytes) is a plug-in for Internet Explorer. It is no longer supported, but still works fine with these .dwf files. Volo View Express 2 (25.3 megabytes) is an independent program and a plug-in for Internet Explorer. It will work with newer .dwf files that the WHIP viewer was not designed to open. If you are not using Internet Explorer, you will probably be given the choice to save a drawing to a file. If you do so, you will be able to open the file using Volo View Express 2. In summary, if you are using Internet Explorer, the WHIP viewer will be a quicker download that should meet your needs.
Forest Service employees using the newest IBM computers may need administrative rights to install either viewer. Your system administrator can help you if this is the case.
Download Volo View Express 2 (25.3 megabytes).
If you would like us to send you a full-size copy of these drawings, please use the e-mail link below, specifying the number of the drawing you would like. Include your full mailing address and phone number. We normally send 11- by 17-inch prints, but can send full-sized drawings for fabrication if you request them.
Appendix A—Plans for Concrete Ramp, Earth Ramp With Retaining Wall, and Timber Ramp| Concrete Ramp Drawing | Concrete Ramp Plans |
| Earth Ramp Drawing | Earth Ramp Plans |
| Timber Ramp Drawing | Timber Ramp Plans |
Appendix B—Accessibility Rules, Definitions, and Handrail Diagrams
| Rules, Handrails, and Definitions |
Appendix C—Ramp Diagrams and Tables
| Ramp Diagrams and Tables |
To order single copies of MTDC drawings, contact:
