Black Rock Bridge (Lawrence County, Arkansas)
Built 1949 by the Massman Construction CompanyTwelve-span deck truss bridge on US 63/US 412 over Black River and AR 25 at Black RockOpen to two-lane traffic
Cache River US 412 Bridge (Lawrence County, Arkansas)
Built 1934 by the Vincennes Bridge Co.; replaced 1995Abandoned pony truss bridge over Cache River on US 412 between Walnut Ridge and ParagouldReplaced by new bridge, but main span preserved in place