Riyadh, Saudi Arabia - King Salman International Airport Development Company (KSIADC) has put the Zone C1+C2 package of roads, bridges and utility networks out to tender at King Salman International Airport (KSIA) in Riyadh.
The tender went out on 26 October, with bids due by 6 December.
Under the request for proposals, the contractor will procure, build, test and commission civil infrastructure serving Terminal 6 as well as the existing Terminals 1-5.
Road works take in an upgrade of Airport Road 539, which lies west of Terminals 1-5, and of a stretch of Mohamed Bin Faraj Road 5333 to the west of Junction 6.
New roads, ramps and service roads are also in the package, together with signalised at-grade junctions. A further access road will link the Terminal 6 site offices with Road 5333.
Bridges at Junction 6 and Terminal 6 are among the structures to be built, along with retaining walls and reinforced-soil structures. The contractor is also responsible for the central ground services equipment (GSE) bridge.
Ahead of construction, the winning bidder has to validate the design, finish any elements still outstanding, among them mechanically stabilised earth walls, approach slabs, drainage and lighting, and obtain the authority approvals needed.
On the dry utilities side, the scope covers street lighting, low-voltage distribution, security-surveillance systems, high- and extra-high-voltage containment, and a medium-voltage network of 13.8kV fed through package substations.
The wet utilities are wastewater, district cooling and treated sewage effluent networks, along with lines for drinking, firefighting and irrigation water. Wastewater piping runs from 200mm u-PVC gravity lines up to 1,700mm glass-reinforced plastic mains.
Channels, culverts, ponds and pipes of 400mm to 1,400mm in diameter will make up the stormwater network. Crossings are to be built by open-cut excavation, horizontal directional drilling or microtunnelling.
Utilities that serve the terminals already in operation will be diverted under a design-and-build arrangement. Enabling works cover earthworks and moving the security fence and trees.
The contractor will also knock down existing bridges, a sewage pumping station and a temporary car park.
Two optional design-and-build elements are included and will go ahead only on the client’s instruction. One is the south GSE bridge.
The other is a multi-lane access road of about 1,400 metres to the Terminal 6 Transportation Hub, with bridges, underpasses, ramps and tunnels, plus provisions for future Wadi Loop utilities and structures.
KSIA is being developed north of Riyadh, next to the existing King Khaled International Airport, on a site of about 57 sq km with six runways and six terminals, according to the airport. It is planned to handle up to 100 million travellers by 2030 and 185 million passengers by 2050.
In November 2025, KSIA said it would start construction in 2026 on a new terminal for 40 million passengers a year, with operations due to begin in 2029.
