Research in Progress (RIP) https://rip.trb.org/ en-us Copyright © 2026. National Academy of Sciences. All rights reserved. http://blogs.law.harvard.edu/tech/rss tris-trb@nas.edu (Bill McLeod) tris-trb@nas.edu (Bill McLeod) Research in Progress (RIP) https://rip.trb.org/Images/PageHeader-wTitle-RIP.jpg https://rip.trb.org/ Corrugated Steel Culvert Corrosion & Abrasion Performance https://rip.trb.org/View/1440847 Wed, 28 Dec 2016 11:40:06 GMT https://rip.trb.org/View/1440847 Bridge on Arnault Branch, Washington County, Missouri https://rip.trb.org/View/1239472 Fri, 01 Feb 2013 01:15:58 GMT https://rip.trb.org/View/1239472