Choking traffic around Indooroopilly's Walter Taylor Bridge is a sign the Centenary Highway should now be widened to six lanes and a new bridge built from Bellbowrie to Riverhills, the RACQ says.

This week traffic inched for four kilometres along Honour Avenue past Chelmer and Graceville, with motorists taking 45 minutes to crawl across the Walter Taylor Bridge at Indooroopilly.

Traffic crawls towards Indooroopilly's Walter Taylor Bridge. Credit:Tony Moore

Brisbane City Council said "traffic congestion" on Moggill Road made the traffic situation at Indooroopilly worse than usual.

The Brisbane City Council confirmed on Wednesday it had in February 2016 bought the riverside Defence Department property, Witton Barracks, beside Indooroopilly train station, for a park and a new Indooroopilly bridge.