Old Happy Isles Bridge
North Face Of Bridge From East Bank. Retaining Wall And Gauging Station To Left
Photo taken for the Historic American Engineering Record
View photos at Library of Congress
BH Photo #224793
The Old Happy Isles Bridge is a locally-rare survivor of a concrete girder bridge in Yosemite National Park. Concrete girder bridges were the prevailing form of construction in the late 1910s and early 1920s.
-- Historic American Engineering Record
The Old Happy Isles Bridge was removed in 2001 due to damage caused by the 1997 flood and rock fall from Glacier Point.
- Concrete deck girder bridge over Merced River on Park Path
- Mariposa County, California
- Removed but not replaced
- Built 1921, Removed 2001
- Concrete deck girder
Length of largest span: 57.8 ft.
Total length: 88.9 ft.
Deck width: 15.8 ft.
- Approximate latitude, longitude
- +37.73134, -119.55863 (decimal degrees)
37°43'53" N, 119°33'31" W (degrees°minutes'seconds")
- Approximate UTM coordinates
- 11/274522/4179089 (zone/easting/northing)
- Quadrangle map:
- Half Dome
- Inventory number
- BH 51215 (Bridgehunter.com ID)
- February 6, 2012: Added by Michael Goff
- Mike Goff - michael [dot] goff [at] hotmail [dot] com
- HAER CA-104 - Old Happy Isles Bridge, Spanning Merced River on service road, Yosemite Village, Mariposa County, CA