state highway abbreviated state highway oklahoma runs miles south north western edge state highway town durham miles north passes counties letter spur routes branching designation dates march spanned highway gradually evolved years reaching current form route description begins seat travels north sparsely populated terrain unincorporated settlement miles north north highway crosses junction miles north miles rural roughly parallels texas state line lying generally miles west highway bridges miles crossing miles west intersects begins concurrency business loop traveling east town turns north interstate crossing running unincorporated settlement miles north comes intersection point crosses travels north fourteen miles joins miles town continues continuing north miles junction crossing continues miles terminus local road durham history state highway added highway system march time began ended numbered present day november highway extended west south setting southern terminus present location state highway map following year large portion highway removed state highway system october junction route ceased maintained appeared state highway map lines indicating route maintained edition marked map north west result effectively sections running april southern extended south highway proceeded east turned south previously farm market road route turned east end extension encompassed present day western january extension split form new sections reunited august stretch route newly continuous highway extended north months later november extended north time ending concurrent february extended north durham late 1950s 1960s extended south texas state line february highway extended run west split south miles east north south texas state line highway ended bridge prairie dog town fork southern oklahoma texas boundary route truncated march junction list
Oklahoma State Highway 30