Bosphorus Bridge is and the total height of the towers is . The clearance of the bridge from sea level is . Upon its completion in 1973, the Bosphorus Bridge had the fourth-longest suspension bridge span in the world, and the longest outside the United States (only the Verrazano-Narrows Bridge, Golden Gate Bridge and Mackinac Bridge had a longer span in 1973). The Bosphorus Bridge remained the longest suspension bridge in Europe until the completion of the Humber Bridge in 1981, and the longest suspension bridge in Asia until the completion of the Fatih Sultan Mehmet Bridge (Second Bosphorus Bridge) in 1988
Punalur Suspension Bridge heavy traffic on the National Highway 208, a new strong bridge was built. The bridge was recently repaired and renovated by the government of Kerala. The structure was strengthened, new wood panels of the same tree (Kambakom) which was first used in the construction were fitted, the steel armrests and the stone columns were painted, night lamps were installed and a new park and resting place was made near the bridge. Punalur Suspension Bridge The Punalur Suspension Bridge, located in Punalur is the oldest motorable Bridge in Kerala, which was built by the British and is now a historical attraction.