Construction of the two separate viaducts was achieved by a 710 meter long highline that was anchored on the mountain tops on either side of the canyon at elevation points 837 and 811 meters above a river level of just 500 meters. The bridge has an overall length of 541 meters and a maximum pier height of 143 meters. A temporary footbridge was also built to assist construction workers with a span of 173 meters.

sumber :

http://highestbridges.com/wiki/index.php?title=Mi_River_Bridge