The Ghana Highway Authority (GHA) was established as a corporate body by GHA Degree 1974 (NRCD 298). NRCD 298 was repealed by the GHA Act 1997 (Act 540), which, however, continued the Authority in existence with responsibility for the administration, control, development, and maintenance of the trunk road network in Ghana. This totals of highways and related facilities which make up about 33% of Ghana's total road network of as of 2013.
All the Divisions of the Authority are grouped under three main Departments, namely:
This Department embraces 7 Divisions, namely:
There is an Internal Audit Division, that is directly responsible to the Chief Executive but which for administration purposes, reports to the Deputy Chief Executive (Administration).
This Department embraces 7 Divisions, namely:
The Head of this Department is the Deputy Chief Executive for Development.
This Department embraces: