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/ Assessment of Embedded Box Culverts for Aquatic Organism Passage https://rip.trb.org/View/2551253 Mon, 12 May 2025 13:59:45 GMT https://rip.trb.org/View/2551253 Design of Self-Cleaning Solutions for Mitigating Sedimentation at Twin-and Single-Box Culverts https://rip.trb.org/View/2509054 Wed, 12 Feb 2025 18:00:24 GMT https://rip.trb.org/View/2509054 Concrete Box Culvert (CBC) Adaptation to Increase Ungulate Use https://rip.trb.org/View/2417305 Wed, 14 Aug 2024 12:10:15 GMT https://rip.trb.org/View/2417305 Refinement of Reinforced Concrete Box Culvert Installation Guidelines https://rip.trb.org/View/2377861 Mon, 06 May 2024 15:54:32 GMT https://rip.trb.org/View/2377861 Analysis of the Poplar Creek Box Culverts https://rip.trb.org/View/2313954 Thu, 21 Dec 2023 10:32:27 GMT https://rip.trb.org/View/2313954 Performance Evaluation of Reinforced Concrete Box Culverts https://rip.trb.org/View/2050260 Tue, 25 Oct 2022 09:59:49 GMT https://rip.trb.org/View/2050260 Developing the Load Distribution Formula for Louisiana Culverts https://rip.trb.org/View/1744892 Mon, 12 Oct 2020 15:02:02 GMT https://rip.trb.org/View/1744892