River, Tasmania, Australia.
Rising in Lake St. Clair , it flows 113 mi (182 km) southeast to enter Storm Bay through a 3.5-mi-(5.5-km-) wide estuary. Its major upper-course tributaries have been extensively developed for hydropower. The city of Hobart is situated on the estuary, 12 mi (19 km) from the river's mouth. This stretch of the river forms an excellent deepwater port and is spanned by the Tasman Bridge.