Each county engineer shall have available in his or her office a complete inventory of all National Bridge Inventory (NBI) bridges on the county road system. The inventory shall list the location of each bridge by the state road log number and appropriate milepost, and shall include such other information as the engineer deems necessary. In addition, all data required for the Washington state bridge inventory system (WSBIS) database system as maintained by the Washington state department of transportation (WSDOT) shall be submitted to the WSDOT local programs bridge engineer on appropriate media furnished or otherwise approved by the WSDOT. It is highly recommended that each county engineer maintain a similar inventory of the short span bridges, drainage structures, and large culverts on the county road system.