Wier-Cum Causeway, Bridge and water control structure on Tapi River in Surat, India.
The Wier-Cum Causeway is a dam and water control structure that spans the Tapi River with multiple gated openings to manage flow. The bridge carries traffic lanes and walkways that connect different parts of the city separated by the waterway.
The structure was completed in the mid-1990s as part of Surat's urban development program. This connection between areas on either side of the river transformed how residents traveled across the city.
The structure bears the name of a former Indian Prime Minister and shows how Surat expanded its connections across the river. It reflects the city's need to link its rapidly developing neighborhoods on both banks.
The causeway is open daily for vehicle and pedestrian traffic connecting several neighborhoods directly. During heavy monsoon periods, water levels may rise and temporarily restrict crossing.
The structure has an unusual feature: when water releases from upstream dams cause extreme flooding, it can temporarily submerge completely. This submersible design allows the river to safely discharge during crisis periods.
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