Mystery Solved (at least for me)
After several years of driving past the construction along the northbound side of U.S. 301 south of Baldwin (between County Road 218 and State Road 200), after an absence of a year and a half, concrete has been added to the project. A search turned up this info on the FDOT site (
https://nflroads.com/ProjectDetails.aspx?p=5361):
The Florida Department of Transportation (FDOT) will begin its second and final phase of work Monday, November 30 to complete Florida’s first concrete test track road parallel to the existing northbound lanes of U.S. 301 from just south of County Road 218 to just north of Richard Mosely Road (approximately 2.5 miles).
This phase will include constructing 52 new concrete test sections, a new storm water pond, installing new traffic signals, lighting, highway signage, guardrail, drainage, asphalt paving and other incidental construction.
Phase one of the project, which included earthwork and installation of data collection cabinets, was completed in early 2019. The purpose of the concrete test track road is to provide insight into FDOT’s current concrete pavement design practices and study data to improve future materials and performance.
Superior Construction Company Southeast, LLC was selected to complete this project. Construction completion estimates are fluid and subject to change, weather and schedule permitting.
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Work is still in progress as of last week when we went past (or at least, not all the work is done, there wasn't evidence of any work being done other than a lane shift at the south end). It will be interesting to see how traffic is moved onto this pavement to test the concrete.
Bruce in Blacksburg