Conn Creek Dam - Lake Hennessey - Napa, California
Posted by: Groundspeak Regular Member GT.US
N 38° 28.815 W 122° 22.391
10S E 554672 N 4259288
The Conn Creek dam forms Lake Hennessey in Napa County California.
Waymark Code: WMA94D
Location: California, United States
Date Posted: 12/06/2010
Published By:Groundspeak Regular Member lenron
Views: 6
Download this waymark:
.GPX File
.LOC File
.KML File (Google Earth)

The website at (visit link) tells us:

"Hennessey is impounded by Conn Creek Dam on Conn Creek in Napa County, California and is used for irrigation purposes. It was built in 1946. Its normal surface area is 1.2 square miles. It is owned by the City Of Napa.



Conn Creek, also known as Hennessey is rock fill. Its height is 125 feet with a length of 700 feet. Normal storage is 31000 acre feet. It drains an area of 54 square miles. "
Waterway where the dam is located: Conn Creek

Main use of the Water Dam: Water Supply (Drinkable)

Material used in the structure: embankment

Height of Dam: 125 feet

Date built: 01/01/1946

Motor Sports Allowed: no

Fishing Allowed: Not Listed
Visit Instructions:
Photo of the Dam and a description of your visit.
Search for...
Geocaching.com Google Map
Google Maps
MapQuest
Bing Maps
Nearest Waymarks
Nearest Water Dams
Nearest Geocaches
Create a scavenger hunt using this waymark as the center point
Recent Visits/Logs:
There are no logs for this waymark yet.