Patapsco River. Extending times for commencing and completing certain bridges in Maryland, report to accompany S. 1223 [to extend times for commencing and completing construction by Maryland of bridge across or tunnel under Patapsco River at Baltimore Md., and bridge across Chesapeake Bay from point at or near Miller's Island, Md., to a point at or near Tolchester, Md., or bridge across or tunnnel under Chesapeake Bay, or combined bridge and tunnel, from point at or near Annapolis, Md., to a point on Kent Island, Md.]; submitted by Mr. Brown.