A bill to amend title 23 of the United States Code to increase the scope of the special bridge replacement program.

Expands the special bridge replacement and rehabilitation program to authorize Federal participation in State projects to replace or rehabilitate bridges which are not located on the Federal-aid highway systems.

Directs the Secretary of Transportation to inventory such bridges and to classify them according to their serviceability, safety, and essentiality for public use. Bases a State's apportionment for rehabilitation and replacement funding on such classification.

Authorizes appropriations through fiscal year 1990 for the special bridge rehabilitation and replacement program.