Lake Hennessey
- Status
- Closed to all watercraft
- Reason
- Golden mussel prevention
- Permit sales
- Boating permits suspended
- Water contact
- No swimming, wading or paddleboards
.jpg?width=1280 "Photo: Annette Teng, CC BY 3.0, via Wikimedia Commons")
.jpg?width=1280 "Photo: Annette Teng, CC BY 3.0, via Wikimedia Commons")
- Fishing
About this lake
Status: The Lake Hennessey boat launch is closed and no watercraft of any kind are allowed on the lake until further notice. The City of Napa closed it to keep golden mussels out of its water supply and says it doesn't plan to reopen in the foreseeable future. Boating permit sales are suspended.
Lake Hennessey supplies 40 to 60 percent of the City of Napa's drinking water in a typical year.
When the launch reopens
Canoes and kayaks may launch only from the boat dock, the lake is day use only, and motors over 10 horsepower aren't allowed. No body contact with the water is permitted: no swimming, wading or paddleboards.
Fishing
Anglers 16 and older pay a City fishing permit ($1 a day or $5 a year), plus a state license. Open fires are prohibited in the watershed.
Getting there & access
Golden mussels
No boats, kayaks or other watercraft are allowed on the lake until further notice.
- Fishing permit
- $1/day or $5/year
- Operator
- City of Napa Water Division
What's here
Fishing
Fishing with a City permit
Rules & official resources
- Boat launch closed; absolutely no watercraft allowed on the lake until further notice; boating permit sales suspendedcityofnapa.org ↗
- No body contact with the water: no swimming, wading or paddleboards; no open fires in the watershedcityofnapa.org ↗
- When the launch reopens: canoes and kayaks only from the boat dock; no motor over 10 horsepower; day use onlycityofnapa.org ↗
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