&quot;A&quot; Canal lining 300 to 500 feet downstream from the Headworks, facing downstream

United States. Bureau of Reclamation

KP-1730 - Klamath Project. Severely weathered horizontal fractures and vertical joints, with concrete surface completely gone. Note horizontal cracks more severely spalled and weathered than the vertical joints, possibly due to retained moisture on the horizontal cracks subjected to freezing causing excessive weathering. Note, also, definite signs of heaving, indicated by angular displacement of the vertical joint; October 18, 1948; Photo by H. F. Tolley

Title

"A" Canal lining 300 to 500 feet downstream from the Headworks, facing downstream

Creator

United States. Bureau of Reclamation

Source

Original photograph: 18 x 13 cm, black & white photo, caption under photo reads "KP-1730 - Klamath Project. "A" Canal lining 300 to 500 feet downstream from the Headworks, facing downstream. Severely weathered horizontal fractures and vertical joints, with concrete surface completely gone. Note horizontal cracks more severely spalled and weathered than the vertical joints, possibly due to retained moisture on the horizontal cracks subjected to freezing causing excessive weathering. Note, also, definite signs of heaving, indicated by angular displacement of the vertical joint. H. F. Tolley, Photographer. October 18, 1948", from Black Binders
Digital reproduction of photograph: KP-1730 - Klamath Project, Black Binders, Bureau of Reclamation

Date Original

1948-10-18

Date Digitized

2005-08-17

Date Available

2007-01-03

Other Identifiers

local: BOR-17-Aug-2005-1705

Subject (Topic)

Irrigation projects
Klamath Project (U.S.) -- History
Irrigation canals and flumes -- Linings
Cracking process
Klamath Project Construction
A-Canal (Oregon)

Format

image