Bridge formula axle groups
<a href="//commons.wikimedia.org/w/index.php?title=User:ErgoSum88&amp;action=edit&amp;redlink=1" class="new" title="User:ErgoSum88 (page does not exist)">ErgoSum88</a>.  All images on the DoT site are in the public domain unless noted.<a rel="nofollow" class="external autonumber" href="http://www.fhwa.dot.gov/webpolicies/linktofhwa.htm">[1]</a>
2005-04-23
Derivative work based on Figure 4 of <a rel="nofollow" class="external free" href="http://ops.fhwa.dot.gov/freight/publications/brdg_frm_wghts/index.htm">http://ops.fhwa.dot.gov/freight/publications/brdg_frm_wghts/index.htm</a>.  The brochure is available at <a rel="nofollow" class="external free" href="http://purl.access.gpo.gov/GPO/LPS76061">http://purl.access.gpo.gov/GPO/LPS76061</a>.