Réponse :
Bonjour,
1: => It is steel arch bridge which carries road and rail traffic acroos its span which is 503 metres long phrase
2:=> There is also a cycle track which allows cyclists to cross port Jakson. Port jakson which is another name for Sydney harbour phrase
3: =>The summit of the bridge which you can climb is 134 m above level sea . This means you have a spectacular view of the city and the blue mountais which are in the distance
;)