拱坝

拱坝	gǒng bà	an arch dam
拱	gǒng	to cup one's hands in salute / to surround / to arch / to dig earth with the snout / arched
坝	bà	(used in place names) plain; flatland / (dialect) sandbar; shoal
坝	bà	dam / dike; embankment / CL:条