The Ghana Highway Authority was established as a body corporate by GHA Degree 1974 (NRCD 298). NRCD 298 was repealed by GHA Act 1997 (Act 540 ) which, however, continued the Authority in existence with responsibility for the administration, control, development and maintenance of the country's trunk road network totalling 13,367 km and related facilities. GHA's 13,367 km trunk roads make about 33% of Ghana's total road network of 40,186 km.