Rehabilitation of historic metal truss bridges often involves the replacement of rivets in the original bridge. Insofar as the rivets are considered part of the historic fabric of the bridge,…
The traditional technique for addressing hydrologic impacts of highway projects is to construct detention basins. While the basins are effective at reducing peak flows and flood issues, they are less…
Chloride-based deicers continue to be the primary deicing chemical of choice due to the huge cost differential with non-chloride deicers. Essentially there are no salt alternatives that are comparable in…
There is a great interest in safe wildlife crossings for a number of reasons: reduced auto/animal collisions that cause economic loss, and physical harm or death to humans and animals.…
Develop a consistent methodology for analyzing noise impacts on different terrestrial species. Develop standard metrics and procedures for the DOTs to conduct noise analyses of our highway projects on wildlife,…
The US interstate highway system is essentially complete, and was constructed in large part without the benefit of stormwater quality features to improve highway runoff water quality or measures to…
General Scope of Work: Task 1: Literature Review. Complete a literature review to determine the sources of zinc in highway runoff. The literature review should also attempt to determine if…
Create a predictive model tool that uses bridge inventory data to rate the likelihood of migratory bird use on structures. A simple tool could be created using a few common…
For highways outside of cities, infiltration within a right of way (ROW) may be one of the few means of meeting the return to predevelopment hydrology requirement under the Energy…
Customarily archaeologists have been in control of identification of stone features. These have been readily recognized on the Northern Plains and the Southwest, but less so in the NE and…