The project involves the expansion of the 125-kilometre road and construction of 10 wadi bridges, 200 culverts and related facilities. Al-Harbi is working on the first 60-kilometre stretch from Arrar, while Al-Rosan is completing the remainder. Work is due to be completed by the end of 2007. Saudi Consolidated Engineering Company (Khatib & Alami), the consultant, is also completing designs for two other highway expansions. The first contract covers the dualisation of the 140-kilometre Sharm-Haqil highway; the second contract centres on the expansion of the Tabuk-Medina highway.

The client for all three projects is the Transportation Ministry (MEED 10:6:05).