Answer:
I am French I live about 50km from this bridge
Built on three floors with stones extracted from the same places in the surrounding Roman quarries, the top of the bridge dominates the Gard, in low water, at 48.77 m in height, and, on its largest length, the structure currently measures 275 m.
• Lower level: 6 arches, 142.35 m long, 6.36 m wide, 21.87 m high.
• Medium floor: 11 arches, 242.55 m long, 4.56 m wide, 19.50 m high.
• Upper floor: 35 arches, 275 m long, 3.06 m wide, 7.40 m high. This floor lost 12 arches, and initially measured 360 m; it was preceded by a 130 m long abutment; at the origin of this abutment was discovered in 1988 a control structure. The arches had 16 Roman feet of opening (4.75 m), while the piers had about 10 feet by 10 feet (3 m).
• Pipe: 1.80 m high, 1.20 m wide, 0.4% slope.
Step-by-step explanation: