South Greenfield Overpass, Spanning Burlington Northern Railroad at St...
Significance: The South Greenfield Overpass is a single-span, pin-connected Pratt through truss, and is significant as an example of an uncommon skewed truss type, as well as being a relatively late example of ... More
South Greenfield Overpass, Spanning Burlington Northern Railroad at St...
Significance: The South Greenfield Overpass is a single-span, pin-connected Pratt through truss, and is significant as an example of an uncommon skewed truss type, as well as being a relatively late example of ... More
South Greenfield Overpass, Spanning Burlington Northern Railroad at St...
Significance: The South Greenfield Overpass is a single-span, pin-connected Pratt through truss, and is significant as an example of an uncommon skewed truss type, as well as being a relatively late example of ... More
Memphis Bridge, Spanning Mississippi River, Memphis, Shelby County, TN
See also HAER NE-2 for additional documentation. Significance: Designated a National Historic Civil Engineering Landmark because it was the third longest railroad bridge in the world at 790' when completed. It... More
Memphis Bridge, Spanning Mississippi River, Memphis, Shelby County, TN
See also HAER NE-2 for additional documentation. Significance: Designated a National Historic Civil Engineering Landmark because it was the third longest railroad bridge in the world at 790' when completed. It... More
Memphis Bridge, Spanning Mississippi River, Memphis, Shelby County, TN
See also HAER NE-2 for additional documentation. Significance: Designated a National Historic Civil Engineering Landmark because it was the third longest railroad bridge in the world at 790' when completed. It... More
Snowden Bridge, Spanning Missouri River, Nohly, Richland County, MT
Survey number: HAER MT-27 Building/structure dates: 1913 Initial Construction Building/structure dates: 1925 Subsequent Work
Toluca Overpass, Spanning Burlington Northern Railroad on Old U.S. Hig...
Significance: The Toluca Overpass is a reinforced concrete T-beam structure that was constructed as part of a Federal program to construct railroad overpasses at hazardous high traffic at-grade railroad crossin... More
Clay Spur Bentonite Plant & Camp, Refining Mill, Clay Spur Siding on B...
Significance: The Clay Spur Bentonite Plant and Camp is associated with the early 20th century bentonite mining industry in Wyoming and the United States. The Clay Spur Bentonite District was the center of the... More
Coram Bridge, Spanning Flathead River, Coram, Flathead County, MT
Significance: This two-span, pin-connected, Baltimore dock truss bridge across the Flat River is approached from either direction by plate girder spans between trestles. The two Baltimore spans are 230' in leng... More
Northern Pacific Railroad Overhead Bridge, Spanning Burlington Norther...
This structure was relocated in 1991. Significance: The Burlington Northern Railroad Overhead Bridge was a two-span and the only skewed, steel, Warren through truss bridge in North Dakota. Construction was fun... More
Sixth Street Viaduct, Spanning Burlington Northern Railroad & Valley S...
Significance: The Sixth Street Viaduct is actually comprised of two separate structures: a pin-connected Pratt truss built over the tracks of the Chicago, Burlington and Quincy Railroad in 1886 and a girder ove... More
Clay Spur Bentonite Plant & Camp, Butler Storage, Clay Spur Siding on ...
Significance: The Clay Spur Bentonite Plant and Camp is associated with the early 20th century bentonite mining industry in Wyoming and the United States. The Clay Spur Bentonite District was the center of the... More
Standard Oil Bulk Depot, Center Shed, Along Burlington Northern Railro...
Significance: The Standard Oil Company Bulk Depot complex is historically important for its association with automobile transportation in Wyoming. The facility has functioned for more than sixty years as an int... More
Clay Spur Bentonite Plant & Camp, Office, Clay Spur Siding on Burlingt...
Significance: The Clay Spur Bentonite Plant and Camp is associated with the early 20th century bentonite mining industry in Wyoming and the United States. The Clay Spur Bentonite District was the center of the... More
Cherry Creek Railroad Bridge, Spanning Cherry Creek, north of Delgany ...
Significance: The bridge is a single span wrought iron or steel through Pratt truss and is one of the few remaining examples of this once-common bridge type in Denver. The bridge features a unique, decorative p... More
Memphis Bridge, Spanning Mississippi River, Memphis, Shelby County, TN
See also HAER NE-2 for additional documentation. Significance: Designated a National Historic Civil Engineering Landmark because it was the third longest railroad bridge in the world at 790' when completed. It... More
Memphis Bridge, Spanning Mississippi River, Memphis, Shelby County, TN
See also HAER NE-2 for additional documentation. Significance: Designated a National Historic Civil Engineering Landmark because it was the third longest railroad bridge in the world at 790' when completed. It... More
Memphis Bridge, Spanning Mississippi River, Memphis, Shelby County, TN
See also HAER NE-2 for additional documentation. Significance: Designated a National Historic Civil Engineering Landmark because it was the third longest railroad bridge in the world at 790' when completed. It... More
Memphis Bridge, Spanning Mississippi River, Memphis, Shelby County, TN
See also HAER NE-2 for additional documentation. Significance: Designated a National Historic Civil Engineering Landmark because it was the third longest railroad bridge in the world at 790' when completed. It... More
Snowden Bridge, Spanning Missouri River, Nohly, Richland County, MT
Survey number: HAER MT-27 Building/structure dates: 1913 Initial Construction Building/structure dates: 1925 Subsequent Work
Toluca Overpass, Spanning Burlington Northern Railroad on Old U.S. Hig...
Significance: The Toluca Overpass is a reinforced concrete T-beam structure that was constructed as part of a Federal program to construct railroad overpasses at hazardous high traffic at-grade railroad crossin... More
Northern Pacific Railroad Overhead Bridge, Spanning Burlington Norther...
This structure was relocated in 1991. Significance: The Burlington Northern Railroad Overhead Bridge was a two-span and the only skewed, steel, Warren through truss bridge in North Dakota. Construction was fun... More
Sixth Street Viaduct, Spanning Burlington Northern Railroad & Valley S...
Significance: The Sixth Street Viaduct is actually comprised of two separate structures: a pin-connected Pratt truss built over the tracks of the Chicago, Burlington and Quincy Railroad in 1886 and a girder ove... More
Sixth Street Viaduct, Spanning Burlington Northern Railroad & Valley S...
Significance: The Sixth Street Viaduct is actually comprised of two separate structures: a pin-connected Pratt truss built over the tracks of the Chicago, Burlington and Quincy Railroad in 1886 and a girder ove... More
South Greenfield Overpass, Spanning Burlington Northern Railroad at St...
Significance: The South Greenfield Overpass is a single-span, pin-connected Pratt through truss, and is significant as an example of an uncommon skewed truss type, as well as being a relatively late example of ... More
Cherry Creek Railroad Bridge, Spanning Cherry Creek, north of Delgany ...
Significance: The bridge is a single span wrought iron or steel through Pratt truss and is one of the few remaining examples of this once-common bridge type in Denver. The bridge features a unique, decorative p... More
Memphis Bridge, Spanning Mississippi River, Memphis, Shelby County, TN
See also HAER NE-2 for additional documentation. Significance: Designated a National Historic Civil Engineering Landmark because it was the third longest railroad bridge in the world at 790' when completed. It... More
Memphis Bridge, Spanning Mississippi River, Memphis, Shelby County, TN
See also HAER NE-2 for additional documentation. Significance: Designated a National Historic Civil Engineering Landmark because it was the third longest railroad bridge in the world at 790' when completed. It... More
Snowden Bridge, Spanning Missouri River, Nohly, Richland County, MT
Survey number: HAER MT-27 Building/structure dates: 1913 Initial Construction Building/structure dates: 1925 Subsequent Work
Snowden Bridge, Spanning Missouri River, Nohly, Richland County, MT
Survey number: HAER MT-27 Building/structure dates: 1913 Initial Construction Building/structure dates: 1925 Subsequent Work
Clay Spur Bentonite Plant & Camp, Refining Mill, Clay Spur Siding on B...
Significance: The Clay Spur Bentonite Plant and Camp is associated with the early 20th century bentonite mining industry in Wyoming and the United States. The Clay Spur Bentonite District was the center of the... More
Clay Spur Bentonite Plant & Camp, Dwelling, Clay Spur Siding on Burlin...
Significance: The Clay Spur Bentonite Plant and Camp is associated with the early 20th century bentonite mining industry in Wyoming and the United States. The Clay Spur Bentonite District was the center of the... More
Clay Spur Bentonite Plant & Camp, Power Plant-Machine Shop, Clay Spur ...
Significance: The Clay Spur Bentonite Plant and Camp is associated with the early 20th century bentonite mining industry in Wyoming and the United States. The Clay Spur Bentonite District was the center of the... More
Northern Pacific Railroad Overhead Bridge, Spanning Burlington Norther...
This structure was relocated in 1991. Significance: The Burlington Northern Railroad Overhead Bridge was a two-span and the only skewed, steel, Warren through truss bridge in North Dakota. Construction was fun... More
Sixth Street Viaduct, Spanning Burlington Northern Railroad & Valley S...
Significance: The Sixth Street Viaduct is actually comprised of two separate structures: a pin-connected Pratt truss built over the tracks of the Chicago, Burlington and Quincy Railroad in 1886 and a girder ove... More
Sixth Street Viaduct, Spanning Burlington Northern Railroad & Valley S...
Significance: The Sixth Street Viaduct is actually comprised of two separate structures: a pin-connected Pratt truss built over the tracks of the Chicago, Burlington and Quincy Railroad in 1886 and a girder ove... More
Sixth Street Viaduct, Spanning Burlington Northern Railroad & Valley S...
Significance: The Sixth Street Viaduct is actually comprised of two separate structures: a pin-connected Pratt truss built over the tracks of the Chicago, Burlington and Quincy Railroad in 1886 and a girder ove... More
Sixth Street Viaduct, Spanning Burlington Northern Railroad & Valley S...
Significance: The Sixth Street Viaduct is actually comprised of two separate structures: a pin-connected Pratt truss built over the tracks of the Chicago, Burlington and Quincy Railroad in 1886 and a girder ove... More
Sixth Street Viaduct, Spanning Burlington Northern Railroad & Valley S...
Significance: The Sixth Street Viaduct is actually comprised of two separate structures: a pin-connected Pratt truss built over the tracks of the Chicago, Burlington and Quincy Railroad in 1886 and a girder ove... More
Standard Oil Bulk Depot, West Shed, Along Burlington Northern Railroad...
Significance: Simply massed and detailed without any architectural style, the West Shed, like all of the site's structures, illustrates the utilitarianism of Wyoming industrial construction. Survey number: HAB... More
South Greenfield Overpass, Spanning Burlington Northern Railroad at St...
Significance: The South Greenfield Overpass is a single-span, pin-connected Pratt through truss, and is significant as an example of an uncommon skewed truss type, as well as being a relatively late example of ... More
South Greenfield Overpass, Spanning Burlington Northern Railroad at St...
Significance: The South Greenfield Overpass is a single-span, pin-connected Pratt through truss, and is significant as an example of an uncommon skewed truss type, as well as being a relatively late example of ... More
Clay Spur Bentonite Plant & Camp, Oil House, Clay Spur Siding on Burli...
Significance: The Clay Spur Bentonite Plant and Camp is associated with the early 20th century bentonite mining industry in Wyoming and the United States. The Clay Spur Bentonite District was the center of the... More
Memphis Bridge, Spanning Mississippi River, Memphis, Shelby County, TN
See also HAER NE-2 for additional documentation. Significance: Designated a National Historic Civil Engineering Landmark because it was the third longest railroad bridge in the world at 790' when completed. It... More
Memphis Bridge, Spanning Mississippi River, Memphis, Shelby County, TN
See also HAER NE-2 for additional documentation. Significance: Designated a National Historic Civil Engineering Landmark because it was the third longest railroad bridge in the world at 790' when completed. It... More
Memphis Bridge, Spanning Mississippi River, Memphis, Shelby County, TN
See also HAER NE-2 for additional documentation. Significance: Designated a National Historic Civil Engineering Landmark because it was the third longest railroad bridge in the world at 790' when completed. It... More
Memphis Bridge, Spanning Mississippi River, Memphis, Shelby County, TN
See also HAER NE-2 for additional documentation. Significance: Designated a National Historic Civil Engineering Landmark because it was the third longest railroad bridge in the world at 790' when completed. It... More
Memphis Bridge, Spanning Mississippi River, Memphis, Shelby County, TN
See also HAER NE-2 for additional documentation. Significance: Designated a National Historic Civil Engineering Landmark because it was the third longest railroad bridge in the world at 790' when completed. It... More
Snowden Bridge, Spanning Missouri River, Nohly, Richland County, MT
Survey number: HAER MT-27 Building/structure dates: 1913 Initial Construction Building/structure dates: 1925 Subsequent Work
Snowden Bridge, Spanning Missouri River, Nohly, Richland County, MT
Survey number: HAER MT-27 Building/structure dates: 1913 Initial Construction Building/structure dates: 1925 Subsequent Work
Snowden Bridge, Spanning Missouri River, Nohly, Richland County, MT
Survey number: HAER MT-27 Building/structure dates: 1913 Initial Construction Building/structure dates: 1925 Subsequent Work
Coram Bridge, Spanning Flathead River, Coram, Flathead County, MT
Significance: This two-span, pin-connected, Baltimore dock truss bridge across the Flat River is approached from either direction by plate girder spans between trestles. The two Baltimore spans are 230' in leng... More
Standard Oil Bulk Depot, Center Shed, Along Burlington Northern Railro...
Significance: The Standard Oil Company Bulk Depot complex is historically important for its association with automobile transportation in Wyoming. The facility has functioned for more than sixty years as an int... More
Standard Oil Bulk Depot, Along Burlington Northern Railroad near Burli...
Significance: Built in the 1920s, when automobile travel and petroleum distribution were in their formative stages in Wyoming, the Standard Oil Company Bulk Depot forms a nexus among the historical themes of tr... More
Clay Spur Bentonite Plant & Camp, Office, Clay Spur Siding on Burlingt...
Significance: The Clay Spur Bentonite Plant and Camp is associated with the early 20th century bentonite mining industry in Wyoming and the United States. The Clay Spur Bentonite District was the center of the... More
South Greenfield Overpass, Spanning Burlington Northern Railroad at St...
Significance: The South Greenfield Overpass is a single-span, pin-connected Pratt through truss, and is significant as an example of an uncommon skewed truss type, as well as being a relatively late example of ... More
Cherry Creek Railroad Bridge, Spanning Cherry Creek, north of Delgany ...
Significance: The bridge is a single span wrought iron or steel through Pratt truss and is one of the few remaining examples of this once-common bridge type in Denver. The bridge features a unique, decorative p... More
Memphis Bridge, Spanning Mississippi River, Memphis, Shelby County, TN
See also HAER NE-2 for additional documentation. Significance: Designated a National Historic Civil Engineering Landmark because it was the third longest railroad bridge in the world at 790' when completed. It... More
Memphis Bridge, Spanning Mississippi River, Memphis, Shelby County, TN
See also HAER NE-2 for additional documentation. Significance: Designated a National Historic Civil Engineering Landmark because it was the third longest railroad bridge in the world at 790' when completed. It... More
Memphis Bridge, Spanning Mississippi River, Memphis, Shelby County, TN
See also HAER NE-2 for additional documentation. Significance: Designated a National Historic Civil Engineering Landmark because it was the third longest railroad bridge in the world at 790' when completed. It... More
Snowden Bridge, Spanning Missouri River, Nohly, Richland County, MT
Survey number: HAER MT-27 Building/structure dates: 1913 Initial Construction Building/structure dates: 1925 Subsequent Work
Snowden Bridge, Spanning Missouri River, Nohly, Richland County, MT
Survey number: HAER MT-27 Building/structure dates: 1913 Initial Construction Building/structure dates: 1925 Subsequent Work
Coram Bridge, Spanning Flathead River, Coram, Flathead County, MT
Significance: This two-span, pin-connected, Baltimore dock truss bridge across the Flat River is approached from either direction by plate girder spans between trestles. The two Baltimore spans are 230' in leng... More
Coram Bridge, Spanning Flathead River, Coram, Flathead County, MT
Significance: This two-span, pin-connected, Baltimore dock truss bridge across the Flat River is approached from either direction by plate girder spans between trestles. The two Baltimore spans are 230' in leng... More
Coram Bridge, Spanning Flathead River, Coram, Flathead County, MT
Significance: This two-span, pin-connected, Baltimore dock truss bridge across the Flat River is approached from either direction by plate girder spans between trestles. The two Baltimore spans are 230' in leng... More
Northern Pacific Railroad Overhead Bridge, Spanning Burlington Norther...
This structure was relocated in 1991. Significance: The Burlington Northern Railroad Overhead Bridge was a two-span and the only skewed, steel, Warren through truss bridge in North Dakota. Construction was fun... More
Northern Pacific Railroad Overhead Bridge, Spanning Burlington Norther...
This structure was relocated in 1991. Significance: The Burlington Northern Railroad Overhead Bridge was a two-span and the only skewed, steel, Warren through truss bridge in North Dakota. Construction was fun... More
Northern Pacific Railroad Overhead Bridge, Spanning Burlington Norther...
This structure was relocated in 1991. Significance: The Burlington Northern Railroad Overhead Bridge was a two-span and the only skewed, steel, Warren through truss bridge in North Dakota. Construction was fun... More
Northern Pacific Railroad Overhead Bridge, Spanning Burlington Norther...
This structure was relocated in 1991. Significance: The Burlington Northern Railroad Overhead Bridge was a two-span and the only skewed, steel, Warren through truss bridge in North Dakota. Construction was fun... More
Sixth Street Viaduct, Spanning Burlington Northern Railroad & Valley S...
Significance: The Sixth Street Viaduct is actually comprised of two separate structures: a pin-connected Pratt truss built over the tracks of the Chicago, Burlington and Quincy Railroad in 1886 and a girder ove... More
Cherry Creek Railroad Bridge, Spanning Cherry Creek, north of Delgany ...
Significance: The bridge is a single span wrought iron or steel through Pratt truss and is one of the few remaining examples of this once-common bridge type in Denver. The bridge features a unique, decorative p... More
Memphis Bridge, Spanning Mississippi River, Memphis, Shelby County, TN
See also HAER NE-2 for additional documentation. Significance: Designated a National Historic Civil Engineering Landmark because it was the third longest railroad bridge in the world at 790' when completed. It... More
Memphis Bridge, Spanning Mississippi River, Memphis, Shelby County, TN
See also HAER NE-2 for additional documentation. Significance: Designated a National Historic Civil Engineering Landmark because it was the third longest railroad bridge in the world at 790' when completed. It... More
Memphis Bridge, Spanning Mississippi River, Memphis, Shelby County, TN
See also HAER NE-2 for additional documentation. Significance: Designated a National Historic Civil Engineering Landmark because it was the third longest railroad bridge in the world at 790' when completed. It... More
Memphis Bridge, Spanning Mississippi River, Memphis, Shelby County, TN
See also HAER NE-2 for additional documentation. Significance: Designated a National Historic Civil Engineering Landmark because it was the third longest railroad bridge in the world at 790' when completed. It... More
Memphis Bridge, Spanning Mississippi River, Memphis, Shelby County, TN
See also HAER NE-2 for additional documentation. Significance: Designated a National Historic Civil Engineering Landmark because it was the third longest railroad bridge in the world at 790' when completed. It... More
Memphis Bridge, Spanning Mississippi River, Memphis, Shelby County, TN
See also HAER NE-2 for additional documentation. Significance: Designated a National Historic Civil Engineering Landmark because it was the third longest railroad bridge in the world at 790' when completed. It... More
Snowden Bridge, Spanning Missouri River, Nohly, Richland County, MT
Survey number: HAER MT-27 Building/structure dates: 1913 Initial Construction Building/structure dates: 1925 Subsequent Work
Snowden Bridge, Spanning Missouri River, Nohly, Richland County, MT
Survey number: HAER MT-27 Building/structure dates: 1913 Initial Construction Building/structure dates: 1925 Subsequent Work
Toluca Overpass, Spanning Burlington Northern Railroad on Old U.S. Hig...
Significance: The Toluca Overpass is a reinforced concrete T-beam structure that was constructed as part of a Federal program to construct railroad overpasses at hazardous high traffic at-grade railroad crossin... More
Clay Spur Bentonite Plant & Camp, Bath House, Clay Spur Siding on Burl...
Significance: The Clay Spur Bentonite Plant and Camp is associated with the early 20th century bentonite mining industry in Wyoming and the United States. The Clay Spur Bentonite District was the center of the... More
Clay Spur Bentonite Plant & Camp, Refining Mill, Clay Spur Siding on B...
Significance: The Clay Spur Bentonite Plant and Camp is associated with the early 20th century bentonite mining industry in Wyoming and the United States. The Clay Spur Bentonite District was the center of the... More
Clay Spur Bentonite Plant & Camp, Refining Mill, Clay Spur Siding on B...
Significance: The Clay Spur Bentonite Plant and Camp is associated with the early 20th century bentonite mining industry in Wyoming and the United States. The Clay Spur Bentonite District was the center of the... More
Clay Spur Bentonite Plant & Camp, Stable, Clay Spur Siding on Burlingt...
Significance: The Clay Spur Bentonite Plant and Camp is associated with the early 20th century bentonite mining industry in Wyoming and the United States. The Clay Spur Bentonite District was the center of the... More
Coram Bridge, Spanning Flathead River, Coram, Flathead County, MT
Significance: This two-span, pin-connected, Baltimore dock truss bridge across the Flat River is approached from either direction by plate girder spans between trestles. The two Baltimore spans are 230' in leng... More
Coram Bridge, Spanning Flathead River, Coram, Flathead County, MT
Significance: This two-span, pin-connected, Baltimore dock truss bridge across the Flat River is approached from either direction by plate girder spans between trestles. The two Baltimore spans are 230' in leng... More
Coram Bridge, Spanning Flathead River, Coram, Flathead County, MT
Significance: This two-span, pin-connected, Baltimore dock truss bridge across the Flat River is approached from either direction by plate girder spans between trestles. The two Baltimore spans are 230' in leng... More
Clay Spur Bentonite Plant & Camp, Power Plant-Machine Shop, Clay Spur ...
Significance: The Clay Spur Bentonite Plant and Camp is associated with the early 20th century bentonite mining industry in Wyoming and the United States. The Clay Spur Bentonite District was the center of the... More
Clay Spur Bentonite Plant & Camp, Power Plant-Machine Shop, Clay Spur ...
Significance: The Clay Spur Bentonite Plant and Camp is associated with the early 20th century bentonite mining industry in Wyoming and the United States. The Clay Spur Bentonite District was the center of the... More
Northern Pacific Railroad Overhead Bridge, Spanning Burlington Norther...
This structure was relocated in 1991. Significance: The Burlington Northern Railroad Overhead Bridge was a two-span and the only skewed, steel, Warren through truss bridge in North Dakota. Construction was fun... More
Clay Spur Bentonite Plant & Camp, Cooler, Clay Spur Siding on Burlingt...
Significance: The Clay Spur Bentonite Plant and Camp is associated with the early 20th century bentonite mining industry in Wyoming and the United States. The Clay Spur Bentonite District was the center of the... More
Clay Spur Bentonite, Garage-Storage, Clay Spur Siding on Burlington No...
Significance: The Clay Spur Bentonite Plant and Camp is associated with the early 20th century bentonite mining industry in Wyoming and the United States. The Clay Spur Bentonite District was the center of the... More
Memphis Bridge, Spanning Mississippi River, Memphis, Shelby County, TN
See also HAER NE-2 for additional documentation. Significance: Designated a National Historic Civil Engineering Landmark because it was the third longest railroad bridge in the world at 790' when completed. It... More
Memphis Bridge, Spanning Mississippi River, Memphis, Shelby County, TN
See also HAER NE-2 for additional documentation. Significance: Designated a National Historic Civil Engineering Landmark because it was the third longest railroad bridge in the world at 790' when completed. It... More
Memphis Bridge, Spanning Mississippi River, Memphis, Shelby County, TN
See also HAER NE-2 for additional documentation. Significance: Designated a National Historic Civil Engineering Landmark because it was the third longest railroad bridge in the world at 790' when completed. It... More
Snowden Bridge, Spanning Missouri River, Nohly, Richland County, MT
Survey number: HAER MT-27 Building/structure dates: 1913 Initial Construction Building/structure dates: 1925 Subsequent Work
Clay Spur Bentonite Plant & Camp, Refining Mill, Clay Spur Siding on B...
Significance: The Clay Spur Bentonite Plant and Camp is associated with the early 20th century bentonite mining industry in Wyoming and the United States. The Clay Spur Bentonite District was the center of the... More
Clay Spur Bentonite Plant & Camp, Refining Mill, Clay Spur Siding on B...
Significance: The Clay Spur Bentonite Plant and Camp is associated with the early 20th century bentonite mining industry in Wyoming and the United States. The Clay Spur Bentonite District was the center of the... More