The Jennaviva River is the longest river on Carraway Island. The river serves as an important water route for the City of Adustelan, where it flows primarily in the western half of the city. The river begins near the summit of Mount Draconleo in the Vassaras Mountains, and it empties into Adustelan Bay immediately to the east of Jenna Point.
For a five-mile stretch, the Jennaviva River forms the border between Barrymore County and Vassaras County.
It is the namesake of the neighborhood of Jennaviva along with the Jennaviva Convention Center, all of which were named after 19th-century explorer Thomas Jennaviva.
Crossings of the River
As of 2019, there were 6 bridges and tunnels that crossed the river:
| Location | Name | Type | Opened | Lanes | Carries |
|---|---|---|---|---|---|
| From North to South | |||||
| City of Adustelan | Rosanna Street Bridge | Bridge | 1938 | 2 | Rosanna Street |
| West Piers-Quinton Tunnel | Tunnel | 1971 | 6 |  I-C21
| |
| Dunnage Memorial Bridge | Bridge | 1986 | 2 | Jennaviva Boulevard | |
| Well Hither Hills-Mitchellson Street Bridge | Bridge | 1943 | 2 | Mitchellson Street | |
| Wazchanck Island Bridge | Bridge | N/A | 2 | Wazchanck Island Road | |
| First Assembly Bridge | Bridge | 1967 | 6 |  I-C4
| |
