1. FHWA Recording and Coding Guide for the Structure Inventory and Appraisal of the Nation's Bridges, Federal Highway Administration, Department of Transportation, Washington, D.C., U.S., FHWA -PD-96-001, 1971, 1988, 1995;
2. AASHTO Load and Resistance Factor Design (LRFD) Bridge Specifications, 8 th Edition, 2017;
3. FHWA Specifications for the National Bridge Inventory Bridge Elements, Federal Highway Administration, Department of Transportation, Washington, D.C., U.S., FHWA-01-21-2014;
4. NYS DOT Bridge Inspection Manual, State Department of Transportation, Albany, New York, 1984, 2014;
5. NYS DOT Bridge Inspection Manual, State Department of Transportation, Albany, New York, 2016;