Childs-Irving Hydroelectric Project, Irving System, Sandbox & Spill Gate, Forest Service Road 708/502, Camp Verde, Yavapai County, AZ. Surveyed as HAER AZ-65-E, with a 640-word written history.
“The sandbox allowed sediments to settle out of the water before it entered the penstock.”
Written record, HAER AZ-65-E survey. Machine-read text.
Surveyed by the federal HAER program as HAER AZ-65-E · the record runs 640 words · one of 63 surveyed structures published for this county.
Source document Quoted word for word from HAER AZ-65-E. Not written, edited or summarised by this site.
Between February and August Arizona Public Service (APS) and SWCA Environmental Consultants documented the hydroelectric complex, under guidance of the Historic American Engineering Record (HAER). Project managers Phil Smithers (APS) and Linda Martin (SWCA) coordinated historian Steely, photographer Jessica Maggio, and draftsman Hanson Todachine to complete the HAER documentation. Archives for the Childs-Irving Hydroelectric Project are at APS in Phoenix, Arizona. CHILDS-IRVING HYDROELECTRIC PROJECT, IRVING SYSTEM: SANDBOX AND SPILL GATE HAER No.
AZ-65-E (Page 2) Historic and Engineering Context: The Childs-Irving Hydroelectric Project encompassed a unique system-according to engineering historians evaluating the historic complex since 1976-that 1) was constructed with great effort in an extremely remote landscape, 2) captured a natural water source and followed dramatic topography, 3) generated electric power in a remarkably simple and efficient manner, and 4) operated continuously for 95 years.
In addition to its individual significance nationwide, the Childs-Irving Hydroelectric Project is a classic part of Arizona history spanning the century: remote low-grade mining operations sought reliable and less-expensive energy; a combination of investors, entrepreneurs and engineers modified a natural resource to supply the energy; cutting-edge technology entered a harsh and remote landscape; an isolated labor force merged those with skills learned far away with local residents, including Native Americans with traditional ties to the land; nearby communities soon offered an additional customer base; farmers and irrigation cooperatives became major consumers for their pumps and agricultural machinery; distant metropolitan areas boomed by tapping the energy source; and finally a conservative operational approach to investment and maintenance retained aging technology within a huge modem power grid for many, many years past a reasonable retirement.
Character Defining Attributes Component/Feature No.13 on National Register form. A set of screens and an iron bar grizzly were associated with the spill gate and sandbox. A gauge to monitor the amount of water flowing into the penstock permited workers at the power plant to adjust the water flow as needed. This gauge, and a wooden shed that covered the grizzly and intake for the sandbox, were added after (Effland and Macnider Bibliography Effland, Richard W., and Barbara S. Macnider Childs-Irving Hydroelectric Facilities. National Register of Historic Places Registration Form. U.S. Department of the Interior, National Park Service. Washington, Arizona Public Service (APS) Archives Historic photograph collection. Historic drawings collection. Historic documents collection.
Available through appointment at: APS, P.O. Box Phoenix, Arizona CHILDS-IRYING HYDROELECTRIC PROJECT, IRVING SYSTEM: SANDBOX AND SPILL GATE HAER No. AZ-65-E (Page 3) - - ~ """ . ~ "" .~ -/ ... ~ 6.. -'. c;) \ ~ \ \ ' ,_ ' ' -- \ '\ ~ t-. ~ - u - '- - ~ '-' ~, ~ \ \ --- \ - too '' \. \ 'I.. \ \. -- ) I \ \ \. ~ I<'. ~ I ~ / -1~ - I -1~ - ~-~ . l i
| Camp Verde, Arizona | The place record: every map, photograph and survey of this town. |
| Yavapai County, Arizona | 336 topographic sheets across the county. |
| Library of Congress record | The original filed report as the survey filed it. |
The federal surveyors worked through Camp Verde building by building. These are the other structures they measured and filed a report on, longest report first.
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