Kallang & Paya Lebar Expressway (KPE)
KPE is a 12 km long expressway that connects the East Coast Parkway (ECP) in the south to the Tampines Expressway (TPE) in the north. SCAE is the consultant in the construction of approximately 8.5 km of main tunnels, eight interchange with four on/off-slip roads, at-grade and depressed roads, upgrading and recambering of existing ECP.
The tunnel structure is dual 3-lane twin-cell box structure, separated by a common wall. Slip road tunnels and the associated depressed carriageway will be design as single box tunnels.
The design also includes a multi-span bridge crossing the Geylang river. The bridge is supported by piers sitting on top of the tunnel box beneath the riverbed.