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/ In-Stream Vegetation as a Nature-Based Approach to Scour Control at Bridge Crossings https://rip.trb.org/View/2627352 Wed, 19 Nov 2025 14:20:41 GMT https://rip.trb.org/View/2627352 Dynamics, Drivers and Mitigation of Submerged Aquatic Vegetation (SAV) and Shoreline Change: Data Needs Associated with the Mid-Currituck Bridge https://rip.trb.org/View/2604610 Tue, 30 Sep 2025 14:53:37 GMT https://rip.trb.org/View/2604610 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 Assessment of Aquatic Organism Passage Through 3-Sided and 4-Sided Culverts on High Quality Streams https://rip.trb.org/View/2427732 Fri, 13 Sep 2024 11:19:21 GMT https://rip.trb.org/View/2427732 Dynamics, Drivers and Mitigation of Submerged Aquatic Vegetation (SAV) and Shoreline Change: Data Needs Associated with the Mid-Currituck Bridge https://rip.trb.org/View/2422895 Thu, 29 Aug 2024 08:29:20 GMT https://rip.trb.org/View/2422895 Research and development of in vitro propagation of freshwater mussels for restoration https://rip.trb.org/View/2236953 Mon, 28 Aug 2023 10:22:16 GMT https://rip.trb.org/View/2236953 Acoustic Telemetry Monitoring of Atlantic Sturgeon in the Vicinity of the Route 64 Bridge, Alligator River, Dare County, North Carolina https://rip.trb.org/View/2236950 7 M pounds) occurred in 1890 but by 1920 annual harvest was less than 100,000 pounds. In 1998 the Atlantic States Marine Fisheries Commission (ASMFC) imposed a moratorium on sturgeon catches. In 2012, most Atlantic sturgeon populations, including the Carolina distinct population segment (DPS), became federally listed as endangered under the Endangered Species Act (ESA). The aging Alligator River Bridge on US 64, Dare County, NC, is slated to be replaced within the next few years. Currently, data are very limited about if and how Atlantic sturgeon utilize the Alligator River, especially around the US 64 Bridge crossing. Federal and state permitting agencies are concerned that the construction of the new bridge and demolition of the old bridge will harass and/or harm Atlantic sturgeon in proximity to the construction area. The North Carolina Department of Transportation (NCDOT) and the permitting agencies need more information on the migratory movements of Atlantic sturgeon through the project area when considering the effect to this species from construction of the new Alligator River Bridge. Discussions between the NCDOT Division 1, Raleigh Environmental Analysis Unit and NC Division of Marine Fisheries (NCDMF) have occurred to address the possibility for an in-water work moratorium for the Alligator River Bridge replacement. The reason for this moratorium request is due to the lack of existing data about when and to what magnitude Atlantic sturgeon are in Alligator River during times of the year. To obtain the needed information required by NCDMF, research must be conducted in the area of interest. A collaboration of NCDMF, NCDOT and Virginia commonwealth University (VCU), propose to start collecting, implanting telemetry tags and monitoring sturgeon movements in the Alligator River.]]> Mon, 28 Aug 2023 10:18:02 GMT https://rip.trb.org/View/2236950 Synthesis of Information Related to Highway Practices. Topic 55-18. Permitting, Design, and Construction Practices for Aquatic Organism Passage https://rip.trb.org/View/2209731 Mon, 10 Jul 2023 21:22:59 GMT https://rip.trb.org/View/2209731 Down-the-Hole Drilling Acoustic Research https://rip.trb.org/View/2190088 Fri, 02 Jun 2023 20:10:19 GMT https://rip.trb.org/View/2190088 Research and development of a water quality testing program targeting imperiled aquatic species and their habitats at extant and re-introduction sites in the Complete 540 project area https://rip.trb.org/View/2120728 Mon, 20 Feb 2023 08:15:34 GMT https://rip.trb.org/View/2120728 Bridge and Culvert Hydraulics including Aquatic Organism Passage https://rip.trb.org/View/2067982 Mon, 21 Nov 2022 16:26:22 GMT https://rip.trb.org/View/2067982 Stream & Wetland Mitigation Forecasting: Developing a Predictive Model for Faster Project Delivery and Cost-Savings https://rip.trb.org/View/1723551 Thu, 23 Jul 2020 14:48:34 GMT https://rip.trb.org/View/1723551 e-DNA for Aquatic Species https://rip.trb.org/View/1683236 Thu, 06 Feb 2020 13:33:39 GMT https://rip.trb.org/View/1683236 Review of Special Provisions and Other Conditions Placed on GDOT Projects for Imperiled Aquatic Species Protection (Main Project Phase) https://rip.trb.org/View/1601083 Fri, 19 Apr 2019 14:11:29 GMT https://rip.trb.org/View/1601083 Non-Invasive Detection and Identification of Eastern Hellbender in Ohio Surface Waters Using Aquatic Environmental DNA (Phase 2) https://rip.trb.org/View/1505471 Tue, 20 Mar 2018 12:39:11 GMT https://rip.trb.org/View/1505471