This presentation about the Wisconsin Information System for Local Roads (WISLR) explains that the system is an internet-based network to allow local governments and the Wisconsin DOT to share road data using GIS.
This case study by the FHWA cites Utah’s GIS database as an example of excellent data management.
This technical report by the Idaho DOT is about the importance of data maintenance, specifically using a LRS.
This report by a librarian with the Washington DOT focuses on the importance of data as an asset and the necessity of effective data management.