According to the poster at the bus stop outside North Bridge
Comm Cplx, the bridging bus service operates on 2 routes, but only
one route is in operation at all times.
Buses plying the first route will enter Suntec
City area as shown in the brochure, while buses plying the
second route will loop along Nicoll Highway (call at bus stop
opposite Suntec City) and will not enter Suntec City
area. The second route will comes into operation this weekend when
the race is on. (I didn't note down the actual operation timings
for the second route)
Bridging Service First
Route
North Bridge Rd (City Hall stn), Coleman St,
Hill St, Victoria St, Middle Rd, Nicoll Highway, U-turn before
Republic Ave, Nicoll Highway, Suntec City Driveway, Nicoll Highway,
Raffles Blvd, Temasek Blvd (Suntec Convention
Centre), Temasek Ave, U-turn via Centennial Tower
Driveway, Temasek Ave (Centennial Tower), Temasek
Blvd (Suntec Tower 2), Rochor Rd, North Bridge Rd
(Bugis stn), North Bridge Rd (City Hall
stn)
Bridging
Service Second Route
North Bridge Rd (City Hall stn), Coleman St,
Hill St, Victoria St, Middle Rd, Nicoll Highway, U-turn before
Republic Ave, Nicoll Highway, Suntec City Driveway, U-turn before
Raffles Blvd, Nicoll Highway (opposite Suntec
City), Middle Rd, Beach Rd, Rochor Rd, North Bridge Rd
(Bugis stn), North Bridge Rd (City Hall
stn)