Vanadium Corporation of America (VCA) Naturita Mill, Steel Skimmer Sal...
Significance: Moved from Dry Valley, Utah and reconstructed at the Naturita Mill in 1947, this structure and the other remaining roaster (Structure F) are among only for extant structures that remain from the u... More
Rath Packing Company, Salt Bunker, Sycamore Street between Elm & Eight...
Survey number: HAER IA-41-N
Utah Copper Company, Magna Concentrator, Magna, Salt Lake County, UT
Survey number: HAER UT-24 Public domain photograph - historical image of Utah, United States, free to use, no copyright restrictions image - Picryl description
Utah Copper Company, Magna Concentrator, Magna, Salt Lake County, UT
Survey number: HAER UT-24 Public domain photograph - historical image of Utah, United States, free to use, no copyright restrictions image - Picryl description
Carnegie Steel-Ohio Works, Steam Engines, 912 Salt Springs Road, Young...
Unprocessed Field note material exists for this structure: FN-1 Survey number: HAER OH-33
Salt Box House, State Routes 679 & 772, Modest Town, Accomack County, ...
Survey number: HABS VA-491 Public domain photograph of wooden church building, free to use, no copyright restrictions image - Picryl description
Old Grade Road Bridge, Spanning Brashear Drainage Ditch (Salt River), ...
Significance: One of less than five known skewed high Pratt through truss bridges in Missouri. Survey number: HAER MO-47 Building/structure dates: 1924 Initial Construction
Ash Avenue Bridge, Spanning Salt River at Foot of Ash Avenue, Tempe, M...
Significance: Constructed over the Salt River on the Pheonix-Tempe Highway, the Ash Avenue Bridge is the first concrete multi-arch bridge erected in Arizona. The structure is comprised of eleven spans of two-ri... More
Ash Avenue Bridge, Spanning Salt River at Foot of Ash Avenue, Tempe, M...
Significance: Constructed over the Salt River on the Pheonix-Tempe Highway, the Ash Avenue Bridge is the first concrete multi-arch bridge erected in Arizona. The structure is comprised of eleven spans of two-ri... More
Ash Avenue Bridge, Spanning Salt River at Foot of Ash Avenue, Tempe, M...
Significance: Constructed over the Salt River on the Pheonix-Tempe Highway, the Ash Avenue Bridge is the first concrete multi-arch bridge erected in Arizona. The structure is comprised of eleven spans of two-ri... More
Ash Avenue Bridge, Spanning Salt River at Foot of Ash Avenue, Tempe, M...
Significance: Constructed over the Salt River on the Pheonix-Tempe Highway, the Ash Avenue Bridge is the first concrete multi-arch bridge erected in Arizona. The structure is comprised of eleven spans of two-ri... More
Oriana Bridge, Spanning Salt Fork of Brazos Rivrer at Old County Route...
Significance: An increasingly rare example of the once-common camelback truss, the Oriana Bridge is locally significant as an all-weather link in an early road connecting Stonewall County with Jayton, the princ... More
Salt Creek Bridge, Spanning Big Salt Creek, bypassed section of Arch H...
Significance: Salt Creek Bridge is the only surviving pure Warren truss covered bridge in the United States. Although the Warren truss, patented in 1848, was originally designed as a timber/iron truss, it did ... More
Salt Creek Bridge, Spanning Big Salt Creek, bypassed section of Arch H...
Significance: Salt Creek Bridge is the only surviving pure Warren truss covered bridge in the United States. Although the Warren truss, patented in 1848, was originally designed as a timber/iron truss, it did ... More
Santa Fe Bridge, Spanning South Fork of Salt River at County Road 24, ...
Significance: Designed, fabricated and erected by the St. Louis Bridge and Iron Company in 1888, the through truss on the Santa Fe Bridge originally spanned the South Fork of the Salt River one mile south of th... More
Santa Fe Bridge, Spanning South Fork of Salt River at County Road 24, ...
Significance: Designed, fabricated and erected by the St. Louis Bridge and Iron Company in 1888, the through truss on the Santa Fe Bridge originally spanned the South Fork of the Salt River one mile south of th... More
Salt River Bridge, Spanning Salt River at Dillon Road, Ferndale, Humbo...
Significance: The Salt River Bridge, also known as the Valley Flower Bridge, determined eligible for inclusion in the National Register of Historic Places in 1987, represents a major example of the work of a si... More
Salt River Bridge, Spanning Salt River at Dillon Road, Ferndale, Humbo...
Significance: The Salt River Bridge, also known as the Valley Flower Bridge, determined eligible for inclusion in the National Register of Historic Places in 1987, represents a major example of the work of a si... More
Salt River Bridge, Spanning Salt River at Dillon Road, Ferndale, Humbo...
Significance: The Salt River Bridge, also known as the Valley Flower Bridge, determined eligible for inclusion in the National Register of Historic Places in 1987, represents a major example of the work of a si... More
Ward Brazos River Bridge, Spanning Salt Fork of Brazos River at County...
Significance: The Ward River Bridge is a 787'-0"-long, eleven-span truss bridge crossing the Salt Fork of the Brazos River's wide flood plain. The structure employes eight spans of pin-connected Pratt pony tru... More
Ward Brazos River Bridge, Spanning Salt Fork of Brazos River at County...
Significance: The Ward River Bridge is a 787'-0"-long, eleven-span truss bridge crossing the Salt Fork of the Brazos River's wide flood plain. The structure employes eight spans of pin-connected Pratt pony tru... More
Theodore Roosevelt Dam, Transformer House, Salt River, Tortilla Flat, ...
Survey number: HAER AZ-6-B Building/structure dates: 1908 Initial Construction National Register of Historic Places NRIS Number: 100001454
Roosevelt Power Canal & Diversion Dam, Parallels Salt River, Roosevelt...
Significance: The Roosevelt Power Canal was built as an integral part of the Salt River Project and represents the U. S. Reclamation Service's first involvement in the construction of hydroelectric power facili... More
Roosevelt Power Canal & Diversion Dam, Parallels Salt River, Roosevelt...
Significance: The Roosevelt Power Canal was built as an integral part of the Salt River Project and represents the U. S. Reclamation Service's first involvement in the construction of hydroelectric power facili... More
Roosevelt Power Canal & Diversion Dam, Parallels Salt River, Roosevelt...
Significance: The Roosevelt Power Canal was built as an integral part of the Salt River Project and represents the U. S. Reclamation Service's first involvement in the construction of hydroelectric power facili... More
Roosevelt Power Canal & Diversion Dam, Parallels Salt River, Roosevelt...
Significance: The Roosevelt Power Canal was built as an integral part of the Salt River Project and represents the U. S. Reclamation Service's first involvement in the construction of hydroelectric power facili... More
Roosevelt Power Canal & Diversion Dam, Parallels Salt River, Roosevelt...
Significance: The Roosevelt Power Canal was built as an integral part of the Salt River Project and represents the U. S. Reclamation Service's first involvement in the construction of hydroelectric power facili... More
Roosevelt Power Canal & Diversion Dam, Parallels Salt River, Roosevelt...
Significance: The Roosevelt Power Canal was built as an integral part of the Salt River Project and represents the U. S. Reclamation Service's first involvement in the construction of hydroelectric power facili... More
Western Canal, South side of Salt River between Tempe, Phoenix & Mesa,...
Significance: The Western Canal expanded the irrigable acreage of the Salt River Project; constructed partly by the Reclamation Service and partly by the landowners to be served; supplied water to the Highline ... More
Western Canal, South side of Salt River between Tempe, Phoenix & Mesa,...
Significance: The Western Canal expanded the irrigable acreage of the Salt River Project; constructed partly by the Reclamation Service and partly by the landowners to be served; supplied water to the Highline ... More
Salinas Fortuna Salt Works, PR Routes 323 & 324, La Parguera, Lajas Mu...
Survey number: HAER PR-31 Public domain photograph - historical image of Puerto Rico, free to use, no copyright restrictions image - Picryl description
Fullersburg Bridge, Spanning Salt Creek at York Road, Oak Brook, Du Pa...
Significance: The Fullersburg Bridge is a three span, T-beam bridge, made of reinforced concrete deck girder, construction during the period of significance of Graue Water Mill. Graue Water Mill was built betw... More
Fullersburg Bridge, Spanning Salt Creek at York Road, Oak Brook, Du Pa...
Significance: The Fullersburg Bridge is a three span, T-beam bridge, made of reinforced concrete deck girder, construction during the period of significance of Graue Water Mill. Graue Water Mill was built betw... More
Fullersburg Bridge, Spanning Salt Creek at York Road, Oak Brook, Du Pa...
Significance: The Fullersburg Bridge is a three span, T-beam bridge, made of reinforced concrete deck girder, construction during the period of significance of Graue Water Mill. Graue Water Mill was built betw... More
Horse Mesa Dam, Salt River, 65 miles East of Phoenix, Phoenix, Maricop...
Significance: It was the second dam constructed under the Salt River Project's hydroelectric expansion program in the 1920s. Survey number: HAER AZ-15 Building/structure dates: 1927 Initial Construction Nati... More
Horse Mesa Dam, Salt River, 65 miles East of Phoenix, Phoenix, Maricop...
Significance: It was the second dam constructed under the Salt River Project's hydroelectric expansion program in the 1920s. Survey number: HAER AZ-15 Building/structure dates: 1927 Initial Construction Nati... More
Horse Mesa Dam, Salt River, 65 miles East of Phoenix, Phoenix, Maricop...
Significance: It was the second dam constructed under the Salt River Project's hydroelectric expansion program in the 1920s. Survey number: HAER AZ-15 Building/structure dates: 1927 Initial Construction Nati... More
Horse Mesa Dam, Salt River, 65 miles East of Phoenix, Phoenix, Maricop...
Significance: It was the second dam constructed under the Salt River Project's hydroelectric expansion program in the 1920s. Survey number: HAER AZ-15 Building/structure dates: 1927 Initial Construction Nati... More
Arizona Eastern Railroad Bridge, Spanning Salt River, Tempe, Maricopa ...
Significance: Longest-standing railroad bridge at a location notorious for flood damage; last remaining railroad bridge in Tempe. Nine-span Pratt truss style illustrates evolution of bridge engineering of the e... More
Lincoln Highway, Wendover Cutoff, Great Salt Lake Desert, Knolls, Tooe...
Significance: Last major link in the first transcontinental highway. Solved problems presented by vast mud and salt flats. Survey number: HAER UT-23 Building/structure dates: ca. 1930 Initial Construction
Fort MacArthur, Raw Salt Storage & Processing Buildings, Pacific Avenu...
Significance: The Trona Plant (Building 425) at Fort MacArthur is one of the largest remaining wood timber buildings in southern California. As such, it represents an impressive example of an early west coast ... More
Grand Canal, North side of Salt River, Tempe, Maricopa County, AZ
Significance: This was the first Salt River Valley canal that was built by a canal company; that improved northside distribution system; that was the site of the most significant low-head hydropower plant of th... More
Highline Canal & Pumping Station, South side of Salt River between Tem...
Significance: The Highline Canal expanded the irrigable acreage of the Salt River Project. The pumping plant was the only surface water canal pump on the project. Survey number: HAER AZ-23 Building/structure ... More
Highline Canal & Pumping Station, South side of Salt River between Tem...
Significance: The Highline Canal expanded the irrigable acreage of the Salt River Project. The pumping plant was the only surface water canal pump on the project. Survey number: HAER AZ-23 Building/structure ... More
Highline Canal & Pumping Station, South side of Salt River between Tem...
Significance: The Highline Canal expanded the irrigable acreage of the Salt River Project. The pumping plant was the only surface water canal pump on the project. Survey number: HAER AZ-23 Building/structure ... More
Avery Island Salt Works, Akzo Salt Incorporated, Avery Island, Iberia ...
Significance: The Steam Hoist is the oldest still operating in the United States and has a history of ninety years of continuous use on the same site. The Breaker Building is one of the few surviving examples ... More
Avery Island Salt Works, Akzo Salt Incorporated, Avery Island, Iberia ...
Significance: The Steam Hoist is the oldest still operating in the United States and has a history of ninety years of continuous use on the same site. The Breaker Building is one of the few surviving examples ... More
Avery Island Salt Works, Akzo Salt Incorporated, Avery Island, Iberia ...
Significance: The Steam Hoist is the oldest still operating in the United States and has a history of ninety years of continuous use on the same site. The Breaker Building is one of the few surviving examples ... More
Avery Island Salt Works, Akzo Salt Incorporated, Avery Island, Iberia ...
Significance: The Steam Hoist is the oldest still operating in the United States and has a history of ninety years of continuous use on the same site. The Breaker Building is one of the few surviving examples ... More
Avery Island Salt Works, Akzo Salt Incorporated, Avery Island, Iberia ...
Significance: The Steam Hoist is the oldest still operating in the United States and has a history of ninety years of continuous use on the same site. The Breaker Building is one of the few surviving examples ... More
Avery Island Salt Works, Akzo Salt Incorporated, Avery Island, Iberia ...
Significance: The Steam Hoist is the oldest still operating in the United States and has a history of ninety years of continuous use on the same site. The Breaker Building is one of the few surviving examples ... More
Avery Island Salt Works, Akzo Salt Incorporated, Avery Island, Iberia ...
Significance: The Steam Hoist is the oldest still operating in the United States and has a history of ninety years of continuous use on the same site. The Breaker Building is one of the few surviving examples ... More
Avery Island Salt Works, Akzo Salt Incorporated, Avery Island, Iberia ...
Significance: The Steam Hoist is the oldest still operating in the United States and has a history of ninety years of continuous use on the same site. The Breaker Building is one of the few surviving examples ... More
Avery Island Salt Works, Akzo Salt Incorporated, Avery Island, Iberia ...
Significance: The Steam Hoist is the oldest still operating in the United States and has a history of ninety years of continuous use on the same site. The Breaker Building is one of the few surviving examples ... More
Crosscut Steam Plant, North side Salt River near Mill Avenue & Washing...
Significance: The diesel plant housed unique large engines; both the diesel and steam units provided power to the cities of the Salt River Valley during WWII and the very high growth period following. The pump ... More
Madam Felix-Hodson District Gold Mines & Mills, Southern Edge Salt Spr...
Significance: The Madam Felix-Hudson Mining District is significant in that it contains remains representing the entire span of mining activities in this area, from the middle 1850s through to the present day. ... More
Carnegie Steel-Ohio Works, Steam Engines, 912 Salt Springs Road, Young...
Unprocessed Field note material exists for this structure: FN-1 Survey number: HAER OH-33
Carnegie Steel-Ohio Works, Steam Engines, 912 Salt Springs Road, Young...
Unprocessed Field note material exists for this structure: FN-1 Survey number: HAER OH-33
Old Grade Road Bridge, Spanning Brashear Drainage Ditch (Salt River), ...
Significance: One of less than five known skewed high Pratt through truss bridges in Missouri. Survey number: HAER MO-47 Building/structure dates: 1924 Initial Construction
Ash Avenue Bridge, Spanning Salt River at Foot of Ash Avenue, Tempe, M...
Significance: Constructed over the Salt River on the Pheonix-Tempe Highway, the Ash Avenue Bridge is the first concrete multi-arch bridge erected in Arizona. The structure is comprised of eleven spans of two-ri... More
Ash Avenue Bridge, Spanning Salt River at Foot of Ash Avenue, Tempe, M...
Significance: Constructed over the Salt River on the Pheonix-Tempe Highway, the Ash Avenue Bridge is the first concrete multi-arch bridge erected in Arizona. The structure is comprised of eleven spans of two-ri... More
Ash Avenue Bridge, Spanning Salt River at Foot of Ash Avenue, Tempe, M...
Significance: Constructed over the Salt River on the Pheonix-Tempe Highway, the Ash Avenue Bridge is the first concrete multi-arch bridge erected in Arizona. The structure is comprised of eleven spans of two-ri... More
Salt Sulpher Springs, U.S. Route 219, Salt Sulphur Springs, Monroe Cou...
Significance: One of the most noted and fashionable of the 19th century resorts of Virginia, Salt Sulphur was noted for its gracious, quiet atmosphere and good food. It was a particular favorite of South Caro... More
Crosscut Steam Plant, Indian Bend Pond & Pump Ditch, North side Salt R...
Survey number: HAER AZ-20-B Public domain photograph - historical image of Arizona, United States, free to use, no copyright restrictions image - Picryl description
Crosscut Steam Plant, Indian Bend Pond & Pump Ditch, North side Salt R...
Survey number: HAER AZ-20-B Public domain photograph - historical image of Arizona, United States, free to use, no copyright restrictions image - Picryl description
Salt River Bridge, Spanning Salt River at Dillon Road, Ferndale, Humbo...
Significance: The Salt River Bridge, also known as the Valley Flower Bridge, determined eligible for inclusion in the National Register of Historic Places in 1987, represents a major example of the work of a si... More
Salt River Bridge, Spanning Salt River at Dillon Road, Ferndale, Humbo...
Significance: The Salt River Bridge, also known as the Valley Flower Bridge, determined eligible for inclusion in the National Register of Historic Places in 1987, represents a major example of the work of a si... More
Ward Brazos River Bridge, Spanning Salt Fork of Brazos River at County...
Significance: The Ward River Bridge is a 787'-0"-long, eleven-span truss bridge crossing the Salt Fork of the Brazos River's wide flood plain. The structure employes eight spans of pin-connected Pratt pony tru... More
Ward Brazos River Bridge, Spanning Salt Fork of Brazos River at County...
Significance: The Ward River Bridge is a 787'-0"-long, eleven-span truss bridge crossing the Salt Fork of the Brazos River's wide flood plain. The structure employes eight spans of pin-connected Pratt pony tru... More
Theodore Roosevelt Dam, Transformer House, Salt River, Tortilla Flat, ...
Survey number: HAER AZ-6-B Building/structure dates: 1908 Initial Construction National Register of Historic Places NRIS Number: 100001454
Theodore Roosevelt Dam, Transformer House, Salt River, Tortilla Flat, ...
Survey number: HAER AZ-6-B Building/structure dates: 1908 Initial Construction National Register of Historic Places NRIS Number: 100001454
Roosevelt Power Canal & Diversion Dam, Parallels Salt River, Roosevelt...
Significance: The Roosevelt Power Canal was built as an integral part of the Salt River Project and represents the U. S. Reclamation Service's first involvement in the construction of hydroelectric power facili... More
Roosevelt Power Canal & Diversion Dam, Parallels Salt River, Roosevelt...
Significance: The Roosevelt Power Canal was built as an integral part of the Salt River Project and represents the U. S. Reclamation Service's first involvement in the construction of hydroelectric power facili... More
Roosevelt Power Canal & Diversion Dam, Parallels Salt River, Roosevelt...
Significance: The Roosevelt Power Canal was built as an integral part of the Salt River Project and represents the U. S. Reclamation Service's first involvement in the construction of hydroelectric power facili... More
Roosevelt Power Canal & Diversion Dam, Parallels Salt River, Roosevelt...
Significance: The Roosevelt Power Canal was built as an integral part of the Salt River Project and represents the U. S. Reclamation Service's first involvement in the construction of hydroelectric power facili... More
Roosevelt Power Canal & Diversion Dam, Parallels Salt River, Roosevelt...
Significance: The Roosevelt Power Canal was built as an integral part of the Salt River Project and represents the U. S. Reclamation Service's first involvement in the construction of hydroelectric power facili... More
Roosevelt Power Canal & Diversion Dam, Parallels Salt River, Roosevelt...
Significance: The Roosevelt Power Canal was built as an integral part of the Salt River Project and represents the U. S. Reclamation Service's first involvement in the construction of hydroelectric power facili... More
Roosevelt Power Canal & Diversion Dam, Parallels Salt River, Roosevelt...
Significance: The Roosevelt Power Canal was built as an integral part of the Salt River Project and represents the U. S. Reclamation Service's first involvement in the construction of hydroelectric power facili... More
Roosevelt Power Canal & Diversion Dam, Parallels Salt River, Roosevelt...
Significance: The Roosevelt Power Canal was built as an integral part of the Salt River Project and represents the U. S. Reclamation Service's first involvement in the construction of hydroelectric power facili... More
Roosevelt Power Canal & Diversion Dam, Parallels Salt River, Roosevelt...
Significance: The Roosevelt Power Canal was built as an integral part of the Salt River Project and represents the U. S. Reclamation Service's first involvement in the construction of hydroelectric power facili... More
Roosevelt Power Canal & Diversion Dam, Parallels Salt River, Roosevelt...
Significance: The Roosevelt Power Canal was built as an integral part of the Salt River Project and represents the U. S. Reclamation Service's first involvement in the construction of hydroelectric power facili... More
Western Canal, South side of Salt River between Tempe, Phoenix & Mesa,...
Significance: The Western Canal expanded the irrigable acreage of the Salt River Project; constructed partly by the Reclamation Service and partly by the landowners to be served; supplied water to the Highline ... More
Salinas Fortuna Salt Works, PR Routes 323 & 324, La Parguera, Lajas Mu...
Survey number: HAER PR-31 Public domain photograph of dock building, free to use, no copyright restrictions image - Picryl description
Fullersburg Bridge, Spanning Salt Creek at York Road, Oak Brook, Du Pa...
Significance: The Fullersburg Bridge is a three span, T-beam bridge, made of reinforced concrete deck girder, construction during the period of significance of Graue Water Mill. Graue Water Mill was built betw... More
Horse Mesa Dam, Salt River, 65 miles East of Phoenix, Phoenix, Maricop...
Significance: It was the second dam constructed under the Salt River Project's hydroelectric expansion program in the 1920s. Survey number: HAER AZ-15 Building/structure dates: 1927 Initial Construction Nati... More
Horse Mesa Dam, Salt River, 65 miles East of Phoenix, Phoenix, Maricop...
Significance: It was the second dam constructed under the Salt River Project's hydroelectric expansion program in the 1920s. Survey number: HAER AZ-15 Building/structure dates: 1927 Initial Construction Nati... More
Horse Mesa Dam, Salt River, 65 miles East of Phoenix, Phoenix, Maricop...
Significance: It was the second dam constructed under the Salt River Project's hydroelectric expansion program in the 1920s. Survey number: HAER AZ-15 Building/structure dates: 1927 Initial Construction Nati... More
Horse Mesa Dam, Salt River, 65 miles East of Phoenix, Phoenix, Maricop...
Significance: It was the second dam constructed under the Salt River Project's hydroelectric expansion program in the 1920s. Survey number: HAER AZ-15 Building/structure dates: 1927 Initial Construction Nati... More
Arizona Eastern Railroad Bridge, Spanning Salt River, Tempe, Maricopa ...
Significance: Longest-standing railroad bridge at a location notorious for flood damage; last remaining railroad bridge in Tempe. Nine-span Pratt truss style illustrates evolution of bridge engineering of the e... More
Lincoln Highway, Wendover Cutoff, Great Salt Lake Desert, Knolls, Tooe...
Significance: Last major link in the first transcontinental highway. Solved problems presented by vast mud and salt flats. Survey number: HAER UT-23 Building/structure dates: ca. 1930 Initial Construction
Fort MacArthur, Raw Salt Storage & Processing Buildings, Pacific Avenu...
Significance: The Trona Plant (Building 425) at Fort MacArthur is one of the largest remaining wood timber buildings in southern California. As such, it represents an impressive example of an early west coast ... More
Fort MacArthur, Raw Salt Storage & Processing Buildings, Pacific Avenu...
Significance: The Trona Plant (Building 425) at Fort MacArthur is one of the largest remaining wood timber buildings in southern California. As such, it represents an impressive example of an early west coast ... More
Johnston Street Bridge, Johnston Street spanning Salt Lick Creek, New ...
Significance: The Johnston Street Bridge is an unusually well-preserved example of a Warren pony truss highway bridge in steel. Distinctive features include paired cast cylindrical strap bars that loop over th... More
Cross Cut Hydro Plant, North Side of Salt River, Tempe, Maricopa Count...
Significance: This was the largest low-head hydro plant in the SRP system. From about 1915 to 1938, it represented a large percentage of the SRP generating capacity. Survey number: HAER AZ-30 Building/structu... More
Cross Cut Hydro Plant, North Side of Salt River, Tempe, Maricopa Count...
Significance: This was the largest low-head hydro plant in the SRP system. From about 1915 to 1938, it represented a large percentage of the SRP generating capacity. Survey number: HAER AZ-30 Building/structu... More
Cross Cut Hydro Plant, North Side of Salt River, Tempe, Maricopa Count...
Significance: This was the largest low-head hydro plant in the SRP system. From about 1915 to 1938, it represented a large percentage of the SRP generating capacity. Survey number: HAER AZ-30 Building/structu... More
Cross Cut Hydro Plant, North Side of Salt River, Tempe, Maricopa Count...
Significance: This was the largest low-head hydro plant in the SRP system. From about 1915 to 1938, it represented a large percentage of the SRP generating capacity. Survey number: HAER AZ-30 Building/structu... More
Tempe Canal, South Side Salt River in Tempe, Mesa & Phoenix, Tempe, Ma...
Significance: The oldest canal in continuous use in the Salt River Valley; site of early hydropower projects; the last independent canal company to join the Salt River Project. Survey number: HAER AZ-16 Build... More
Highline Canal & Pumping Station, South side of Salt River between Tem...
Significance: The Highline Canal expanded the irrigable acreage of the Salt River Project. The pumping plant was the only surface water canal pump on the project. Survey number: HAER AZ-23 Building/structure ... More
Avery Island Salt Works, Akzo Salt Incorporated, Avery Island, Iberia ...
Significance: The Steam Hoist is the oldest still operating in the United States and has a history of ninety years of continuous use on the same site. The Breaker Building is one of the few surviving examples ... More