This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Dowel bar retrofitting illustration. en Illustration of dowel bar retrofitting used for pavement preservation fhwa dot gov cfm Office of Research Development and Technology Office of Infrastructure RDT Federal Highway Administration PDUSGov Uploaded with Roadworks Transport engineering Road maintenance