Oregon Historic Highway Bridges, Salem, Marion, OR
Significance: Conde B. McCullough, Oregon State Highway Department Engineer and Administrator from 1919 to 1946, was a significant American innovator in concrete bridge design. Influenced by his early years at... More
Erie Railway, Delaware River Bridge, Spanning Delaware River, S. of Ch...
Survey number: HAER PA-23 Public domain photograph of a viaduct, bridge, arch, free to use, no copyright restrictions image - Picryl description
Governor's Bridge, Governor's Bridge Road spanning Patuxent River, Bow...
Significance: Governor's Bridge is one of only two surviving truss bridges in the county. It also marks the site of a river crossing since colonial times. The name Governor's Bridge is derived from the use of... More
Oregon Trunk Railroad Bridge, Spanning Crooked River at Oregon Trunk R...
Survey number: HAER OR-51 Public domain photograph - historical image of Oregon, United States, free to use, no copyright restrictions image - Picryl description
Merritt Parkway, Cutspring Road Bridge, Spanning Cutspring Road, Strat...
Significance: The bridges of the Merritt Parkway were predominately inspired by the Art Deco and Art Moderne architectural styles of the 1930s. Experimental forming techniques were employed to create the ornam... More
Merritt Parkway, Metro North Railroad Bridge, Spanning Metro North Rai...
Significance: The bridges of the Merritt Parkway were predominately inspired by the Art Deco and Art Moderne architectural style of the 1930s. Experimental forming techniques were employed to create the orname... More
Belton Bridge, Spanning middle fork of Flathead River at Going-to-the-...
Significance: The Belton Bridge was the western entrance to Glacier National Park from 1920 to 1938, and was one of the park's first major construction projects. Between 1933 and 1938, the bridge was also a vi... More
Avalanche Creek Bridge, Spanning Avalanche Creek at Going-to-the-Sun R...
Significance: The Avalanche Creek Bridge is one of approximately seventeen prominent masonry and concrete structures on Going-to-the-Sun Road in Glacier National Park. The 51-mile stretch of scenic road is sig... More
Baltimore & Ohio Railroad, Patterson Viaduct, West Bank of Patapsco Ri...
Survey number: HAER MD-12 Public domain photograph of a bridge, arch over water, river, free to use, no copyright restrictions image - Picryl description
Merritt Parkway, Reservoir Road Bridge, Spanning Reservoir Road, Trumb...
Significance: The bridges of the Merritt Parkway were predominately inspired by the Art Deco and Art Moderne architectural styles of the 1930s. Experimental forming techniques were employed to create the ornam... More
Zion National Park Irrigation System, Oak Creek Canal, Springdale, Was...
Significance: The Oak Creek Canal retains much of its structural integrity, as it follows its original course and retains significant examples of its initial equipment, such as the stone whowing drops located j... More
Erie Railway, Sawyer Creek Bridge, Spanning Sawyer Creek on U.S. Route...
Survey number: HAER NY-95
Jackson's Mill Covered Bridge, Spanning Brush Creek on Township Route ...
Significance: Jackson's Mill Covered Bridge employs typical Burr truss arch construction, a wood roof, and wood siding. It was substantially rebuilt in 1992. Survey number: HAER PA-352 Building/structure dat... More
Haupt Truss Bridge, 1300 Ninth Avenue, Railroaders' Memorial Museum, A...
See also HAER PA-422 for another example of a surviving Haupt iron truss. Significance: Designed by Herman Haupt, the Haupt iron truss was a rare combination of Pratt truss and tied arch, constructed and used e... More
Mount Vernon Street Bridge, Sleepers River, Saint Johnsbury, Caledonia...
Significance: Lenticular pony truss bridge with pin connections. This type of structure was made only by Berlin Iron Bridge Company of East Berlin, CT. It is a good representative sample of their small bridge... More
Felten's Mill Covered Bridge, Spanning Brush Creek at junction of Town...
Significance: This is one of several surviving nineteenth century covered bridges in Bedford County. The wooden Burr truss arch construction is typical of such spans. Survey number: HAER PA-350 Building/stru... More
Merritt Parkway, Unity Road Bridge, Spanning Unity Road, Trumbull, Fai...
Significance: The bridges of the Merritt Parkway were predominately inspired by the Art Deco and Art Moderne architectural styles of the 1930s. Experimental forming techniques were employed to create the ornam... More
Divide Creek Bridge, Spanning Divide Creek at Going-to-the-Sun Road, W...
Significance: The Divide Creek Bridge is one of approximately seventeen prominent masonry and concrete structures on Going-to-the-Sun Road in Glacier National Park. The 51-mile stretch of scenic road is signif... More
Bethlehem Union Station, Between Lehigh Valley Railroad & Reading Rail...
Significance: Two story brick over steel frame with a full height central waiting room, capped with the remnants of a stained glass skylight, glazed tile walls and shops around the perimeter. Built in 1924 bet... More
U.S. Coast Guard Cutter MESQUITE, Charlevoix, Charlevoix County, MI
Significance: This vessel was built to serve as a 180' U.S. Coast Guard cutter. The federal government purchased or built thirty-nine of these vessels, built in three sub-classes, from 1942-1944. The U.S. Coa... More
Elk Park Road Bridge, Spanning Elk Creek at Elk Park Road (Township Ro...
Survey number: HAER PA-579 Building/structure dates: 1927 Initial Construction
Works Progress Administration Bridge No. 232, Elm Creek Road (Leaday-H...
Significance: The bridge was one of a series of small stone and concrete bridges constructed as WPA projects along a road across the Red Wire Pasture on the Day-Miller Ranch. This ranch road was improved to ac... More
Little Hunters Beach Brook Bridge, Spanning Little Hunters Beach Brook...
Significance: The Little Hunters Beach Brook Bride carries the Park Loop Road over its namesake stream in the Black Woods Section of the park. Wooden steps lead down from the bridge to the cobbled beach. Unpr... More
Merritt Parkway, Weston Road/Route 57 Bridge, Spanning Weston Road/Rou...
Significance: The bridges of the Merritt Parkway were predominately inspired by the Art Deco and Art Moderne architectural styles of the 1930s. Experimental forming techniques were employed to create the ornam... More
Erie Railway, Delaware Division, Culvert 190.21, Spanning Canawacta Cr...
Survey number: HAER PA-17 Building/structure dates: 1930 Initial Construction
Elm Street Sluiceway, Beneath Elm Street approximately 100 feet north ...
Significance: It is a representative example of a stone-lined millrace or sluice, typical of 19th century mill construction in New England and elsewhere. The sluiceway is associated with early mill developments... More
Plum Street Regulator, Plum Street at Monongahela River, Elizabeth, Al...
Part of the Monongahela River Recording Project, which included HAER PA-300, Port Perry Bridge; HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; HAER PA-299, Monongahela Lock and Dam No. 7; and HAE... More
Merritt Parkway, Cross Highway Bridge, Spanning Cross Highway, Fairfie...
Significance: The bridges of the Merritt Parkway were predominately inspired by the Art Deco and Art Moderne architectural styles of the 1930s. Experimental forming techniques were employed to create the orname... More
St. Mary River Bridge, Spanning St. Mary River at Going-to-the-Sun Roa...
Significance: The St. Mary River Bridge is one of approximately seventeen prominent masonry and concrete structures on Going-to-the Sun Road in Glacier National Park. The 51-mile stretch of scenic road is sign... More
Ouachita River Bridge, Spanning Ouachita River at U.S. Highway 167, Ca...
Significance: The Ouachita River Bridge at Calion is a good example of the cantilever design used in Arkansas in the late 1920s and early 1930s. The bridge is also significant because it united the southeaster... More
Choate Bridge, Spanning Ipswich River at South Main Street, Ipswich, E...
Significance: The Choate Bridge is an example of early stone construction in the history of American road building. The Essex County Court voted in December, 1764 to name the bridge in honor of Col. John Choat... More
Lower Level Spout Run Bridge, Westbound, spanning Spout Run, Arlington...
Significance: Built as part of the GWMP, this bridge is a late example of the continued use of the "rustic" style for parkway bridges. Survey number: HAER VA-80 Building/structure dates: 1957-1958 Initial Construction
Covered Bridge, Jericho Road spanning Little Gunpowder Falls, Jerusale...
See also HAER MD-187 for additional documentation. Significance: The Jericho Road Covered Bridge is one of six historic covered bridges remaining in the state of Maryland, and one of four that are Burr-arch tru... More
Frankford Avenue Bridge over Poquessing Creek, Spanning Poquessing Cre...
See also HAER PA-478 for related documentation. Includes written data. Significance: This single-span, closed-spandrel arch bridge is an early example of a concrete bridge with supporting members. The bridge's ... More
Stone Bridge, CSAH 17 spanning Grand Portage Creek, Grand Portage, Coo...
Significance: The Stone Bridge is significant for its association with the Civilian Conservation Corps-Indian Division (CCC-ID). Minnesota Chippewa enrolled in CCC-ID camps throughout the state, including the o... More
West Street Bridge, West Street over New Haven Railroad, Westerly, Was...
Significance: Erected in 1913, the West Street Bridge is a significant and massive example of a steel Pratt through-truss, a type of structure that evolved as a common bridge design solution in the early twenti... More
Bridge L2257, Carries Municipal Road 75Rock River Drive over unnamed s...
Significance: Bridge L2257 is locally significant under National Register of Historic Places Criterion C in the area of Engineering as exemplary of the work of local bridge builder, Perley N. Gillham. The bridg... More
Lower Plymouth Rock Bridge, Spanning Upper Iowa River, Kendallville, W...
Significance: The Lower Plymouth Rock Bridge is one of the few intact examples remaining of what had once been the standard rural roadway bridge type of the 1870s in America: the bowstring arch-truss. This pate... More
Fremont Bridge, Spanning Willamette River, carrying Interstate 405 nor...
Significance: Opened in 1973, and the epitome of high-tech, the graceful Fremont Bridge is still both the longest bridge (main span) in Oregon and the longest tied arch bridge in the world. Its 6,000-ton cente... More
Pick Bridge, Spanning North Platte River on County Road 508, Saratoga,...
Significance: The Pick Bridge features one of the longer simple spans of the county-built trusses. It is an important early example of its type and one of only two of its type remaining in use in Wyoming today... More
Center Street Swing Bridge, Southwest of Public Square, Cleveland, Cuy...
Significance: The bridge is the last remaining swing bridge in Cleveland. The bridge is a rim-bearing bobtail through Pratt truss. It was fabricated and erected by the nationally-famous King Bridge Company of C... More
Zumbrota Bridge, Spanning North Fork Zumbro River in Covered Bridge Pa...
Significance: In 1856, the city of Zumbrota was founded by immigrants from Massachusetts, along the Zumbro River on the Dubuque to St. Paul stagecoach trail. The Zumbrota Bridge was first constructed by Evander... More
Tivoli Island Bridge, Spanning Rock River Channel from mainland to wes...
Significance: In 1866, Zenas King from Ohio received a patent for an innovative tubular iron-arch design. Increasing the sectional area of the top chord toward the ends of the arch, he claimed, strengthened th... More
Baltimore-Washington Parkway, Greenbelt, Prince George's County, MD
Significance: The federal section of the Baltimore-Washington Parkway was constructed to provide a dignified entrance to the nation's capital. The parkway also provided a new traffic artery that relieved conge... More
Holliwell Bridge, Spanning Middle River at Holliwell Bridge Road (now ...
See Historical Overview of Iowa Bridges, HAER No. IA-88, which provides a unified historical context of bridges included in Iowa Historic Bridges Recording Project I and II. Significance: Madison County has the... More
Chickamauga National Military Park Tour Roads, Gordon's Slough Bridge,...
Unprocessed Field note material exists for this structure: N1232 Survey number: HAER GA-95-C National Register of Historic Places NRIS Number: 66000274
Dresden Suspension Bridge, Spanning Muskingum River on State Route 208...
Significance: The 705' bridge is a rare example of an eye-bar suspension bridge. Such bridges were popular during the 19th century and early twentieth century. Survey number: HAER OH-93 Building/structure da... More
Sidney Lanier Bridge, Spanning Brunswick River, Brunswick, Glynn Count...
Survey number: HAER GA-147 Public domain photograph - Georgia folklife collection, ethnography, United States, free to use, no copyright restrictions image - Picryl description
War Eagle Bridge, Spanning War Eagle Creek at Benton County Road No. 9...
Significance: The construction of the 182-foot-span at War Eagle was development in the growing economy in northwest Arkansas. Built by the Illinois Steel Bridge Company in 1907, the War Eagle Bridge is signif... More
National Road, Wilson Bridge, Spanning Conococheague Creek at Route 40...
Significance: Wilson Bridge was built in 1819 by Silas Harry as part of an improvement of feeder roads leading to the National Road which began in Cumberland, Maryland and ended in Vandalia, Illinois. Its fiv... More
Erie Railway, Diverging French Creek Bridges, 2.7 miles Southeast of U...
Survey number: HAER PA-27 Public domain photograph - historical image of Pennsylvania, United States, free to use, no copyright restrictions image - Picryl description
Mississippi River 9-Foot Channel Project, Lock & Dam No. 21, Upper Mis...
Significance: The U.S. Army Corps of Engineers Nine-Foot Channel Project (1927-1940) represents the culmination of a 100-year effort to improve the navigability of the Upper Mississippi River between the mouth ... More
Tidal Reservoir, Inlet Bridge, Ohio Drive, spanning Inlet of Tidal Bas...
Significance: The Tidal Reservoir Inlet Bridge is a successful blending of engineering designs and necessities while achieving the height of aesthetics. The tidal gates of the inlet control and regulate the wa... More
San Francisco Oakland Bay Bridge, Spanning San Francisco Bay, San Fran...
Significance: The San Francisco-Oakland Bay Bridge is one of the most impressive engineering structures in the United States. It is also one of the most important transportation links in the United States, ser... More
Brownsville Covered Bridge, Spanning East Fork Whitewater River (moved...
Part of Indiana Recording Project of HAER/Ball State University, sponsored by Indian Historical Society, Historic Landmarks Foundation of Indiana, and Ball State University Significance: The only remaining exam... More
Dentville Road Bridge, Spanning Hiawassee River on Dentville Road, Ben...
Significance: The bridge is a representative example of both the through Parker and Pratt trusses. It is also significant due to its local historical associations and its association with the Joliet Bridge and ... More
Albion Bridge, School Street, Spanning Blackstone River, Cumberland, P...
Survey number: HAER RI-21 Public domain photograph - historical image of Rhode Island, United States, free to use, no copyright restrictions image - Picryl description
Hotchkiss Bridge, Spanning North Fork River on County Road 3400, Hotch...
Significance: Erected using steel components rolled by the Lackawanna Steel Company, the Hotchkiss Bridge was a locally important crossing of the North Fork River. Built by Colorado's most prolific bridge contr... More
Sioux City Bridge, Spanning the Missouri River, Sioux City, Woodbury C...
This documentation was moved from HAER No. SD-1 after additional research showed that the bridge was actually in Iowa, not South Dakota. (10/05/05, JLH) See also HAER NE-2 for additional documentation. Signific... More
Paradise River Fourth Crossing Bridge, Spanning Paradise River on loop...
Significance: The Fourth Crossing Bridge typifies the National Park Service's a "Rustic Style" of architecture through its use of a native granite veneer to conceal its reinforced concrete construction. Unproc... More
Old River Bridge, Spanning Saline River at Old Military Road (River Ro...
Significance: The Old River Bridge is the second oldest bridge in Arkansas, and is an excellent example of a pin-connected Pratt through truss, a common nineteenth-century bridge type. The bridge was construct... More
Johnstown Bridge, Union College campus (moved from Johnstown, NY), Sch...
Survey number: HAER NY-283 Public domain photograph - New York, United States, free to use, no copyright restrictions image - Picryl description
Forth Wadsworth Battery Richmond, Fort Wadsworth, Staten Island, New Y...
Significance: Battery Richmond is one of twelve batteries constructed at Fort Wadsworth during the reconstruction of U.S. Seacoast Defenses, known as the Endicott program, between 1890 and ca. 1905. It is sign... More
Ouachita River Bridge, Spanning Ouachita River at U.S. Highway 167, Ca...
Significance: The Ouachita River Bridge at Calion is a good example of the cantilever design used in Arkansas in the late 1920s and early 1930s. The bridge is also significant because it united the southeaster... More
Lower Level Spout Run Bridge, Westbound, spanning Spout Run, Arlington...
Significance: Built as part of the GWMP, this bridge is a late example of the continued use of the "rustic" style for parkway bridges. Survey number: HAER VA-80 Building/structure dates: 1957-1958 Initial Construction
Choate Bridge, Spanning Ipswich River at South Main Street, Ipswich, E...
Significance: The Choate Bridge is an example of early stone construction in the history of American road building. The Essex County Court voted in December, 1764 to name the bridge in honor of Col. John Choat... More
Covered Bridge, Jericho Road spanning Little Gunpowder Falls, Jerusale...
See also HAER MD-187 for additional documentation. Significance: The Jericho Road Covered Bridge is one of six historic covered bridges remaining in the state of Maryland, and one of four that are Burr-arch tru... More
Matthews Bridge, Spanning Loch Raven Reservoir on Dulaney Valley Road,...
Significance: In 1908 the General Assembly empowered the city of Baltimore to establish a reservoir in the valley of the Gunpowder River in Baltimore County. On May 1, 1913, an agreement was entered into betw... More
Sioux City Bridge, Spanning the Missouri River, Sioux City, Woodbury C...
This documentation was moved from HAER No. SD-1 after additional research showed that the bridge was actually in Iowa, not South Dakota. (10/05/05, JLH) See also HAER NE-2 for additional documentation. Signific... More
Dresden Suspension Bridge, Spanning Muskingum River on State Route 208...
Significance: The 705' bridge is a rare example of an eye-bar suspension bridge. Such bridges were popular during the 19th century and early twentieth century. Survey number: HAER OH-93 Building/structure da... More
Holliwell Bridge, Spanning Middle River at Holliwell Bridge Road (now ...
See Historical Overview of Iowa Bridges, HAER No. IA-88, which provides a unified historical context of bridges included in Iowa Historic Bridges Recording Project I and II. Significance: Madison County has the... More
Frankford Avenue Bridge over Poquessing Creek, Spanning Poquessing Cre...
See also HAER PA-478 for related documentation. Includes written data. Significance: This single-span, closed-spandrel arch bridge is an early example of a concrete bridge with supporting members. The bridge's ... More
Johnstown Bridge, Union College campus (moved from Johnstown, NY), Sch...
Survey number: HAER NY-283 Public domain photograph - New York, United States, free to use, no copyright restrictions image - Picryl description
Baltimore-Washington Parkway, Greenbelt, Prince George's County, MD
Significance: The federal section of the Baltimore-Washington Parkway was constructed to provide a dignified entrance to the nation's capital. The parkway also provided a new traffic artery that relieved conge... More
Arlington Memorial Bridge, Boundary Channel Extension, Spanning Mount ...
Significance: This bridge was designed in 1928 as part of the comprehensive plan for a memorial bridge and drive from the Mall in Washington to Arlington National Cemetery in Virginia. Patterned in the neoclas... More
Center Street Swing Bridge, Southwest of Public Square, Cleveland, Cuy...
Significance: The bridge is the last remaining swing bridge in Cleveland. The bridge is a rim-bearing bobtail through Pratt truss. It was fabricated and erected by the nationally-famous King Bridge Company of C... More
West Street Bridge, West Street over New Haven Railroad, Westerly, Was...
Significance: Erected in 1913, the West Street Bridge is a significant and massive example of a steel Pratt through-truss, a type of structure that evolved as a common bridge design solution in the early twenti... More
Erie Railway, Diverging French Creek Bridges, 2.7 miles Southeast of U...
Survey number: HAER PA-27 Public domain photograph - historical image of Pennsylvania, United States, free to use, no copyright restrictions image - Picryl description
Irrigation Canals in the Uinta Basin, U.S. Whiterocks Canal, Duchesne,...
Significance: The canal provides irrigation for the Indian ranching and farming community of Whiterocks, Utah. The site of Whiterocks was selected by Captain Pardon Dodds who served as Indian Agent from 1867-1... More
Brownsville Covered Bridge, Spanning East Fork Whitewater River (moved...
Part of Indiana Recording Project of HAER/Ball State University, sponsored by Indian Historical Society, Historic Landmarks Foundation of Indiana, and Ball State University Significance: The only remaining exam... More
Lower Plymouth Rock Bridge, Spanning Upper Iowa River, Kendallville, W...
Significance: The Lower Plymouth Rock Bridge is one of the few intact examples remaining of what had once been the standard rural roadway bridge type of the 1870s in America: the bowstring arch-truss. This pate... More
Hotchkiss Bridge, Spanning North Fork River on County Road 3400, Hotch...
Significance: Erected using steel components rolled by the Lackawanna Steel Company, the Hotchkiss Bridge was a locally important crossing of the North Fork River. Built by Colorado's most prolific bridge contr... More
Mill Creek Bridge, Spanning Mill Creek at West Sixth Street, The Dalle...
Significance: Mill Creek Bridge is an early example of a deck girder bridge designed by State Bridge Engineer Conde B. McCullough in 1920. It is 124' long, with four arched curtain walls, which disguise it as ... More
Cincinnati Suspension Bridge, Spanning Ohio River, Cincinnati, Hamilto...
See also HAER No. KY-20, Covington & Cincinnati Suspension Bridge, for additional documentation. Significance: At the time of its completion in 1866, the Cincinnati Suspension Bridge was the longest suspension ... More
Whiteson Bridge, Spanning South Yamhill River at Milepoint 42 on Pacif...
Significance: The bridge is a 1213-foot long multiple span structure comprised of wood pile trestle approach spans and steel plate deck girder main spans. The roadway accommodates two travel lanes, with a deck ... More
National Road, Wilson Bridge, Spanning Conococheague Creek at Route 40...
Significance: Wilson Bridge was built in 1819 by Silas Harry as part of an improvement of feeder roads leading to the National Road which began in Cumberland, Maryland and ended in Vandalia, Illinois. Its fiv... More
Albion Bridge, School Street, Spanning Blackstone River, Cumberland, P...
Survey number: HAER RI-21 Public domain photograph - historical image of Rhode Island, United States, free to use, no copyright restrictions image - Picryl description
Pick Bridge, Spanning North Platte River on County Road 508, Saratoga,...
Significance: The Pick Bridge features one of the longer simple spans of the county-built trusses. It is an important early example of its type and one of only two of its type remaining in use in Wyoming today... More
Old River Bridge, Spanning Saline River at Old Military Road (River Ro...
Significance: The Old River Bridge is the second oldest bridge in Arkansas, and is an excellent example of a pin-connected Pratt through truss, a common nineteenth-century bridge type. The bridge was construct... More
War Eagle Bridge, Spanning War Eagle Creek at Benton County Road No. 9...
Significance: The construction of the 182-foot-span at War Eagle was development in the growing economy in northwest Arkansas. Built by the Illinois Steel Bridge Company in 1907, the War Eagle Bridge is signif... More
Mississippi River 9-Foot Channel Project, Lock & Dam No. 21, Upper Mis...
Significance: The U.S. Army Corps of Engineers Nine-Foot Channel Project (1927-1940) represents the culmination of a 100-year effort to improve the navigability of the Upper Mississippi River between the mouth ... More
Tidal Reservoir, Inlet Bridge, Ohio Drive, spanning Inlet of Tidal Bas...
Significance: The Tidal Reservoir Inlet Bridge is a successful blending of engineering designs and necessities while achieving the height of aesthetics. The tidal gates of the inlet control and regulate the wa... More
San Francisco Oakland Bay Bridge, Spanning San Francisco Bay, San Fran...
Significance: The San Francisco-Oakland Bay Bridge is one of the most impressive engineering structures in the United States. It is also one of the most important transportation links in the United States, ser... More
Henkin's Ford Bridge, Spanning Shoal Creek at CART Road 181, Proctorvi...
Significance: The Henkin's Ford Bridge is an example of a pin-connected through Warren Truss erected by King Bridge Company. This type of bridge was rarely used in this part of the country and is one of two le... More
Dentville Road Bridge, Spanning Hiawassee River on Dentville Road, Ben...
Significance: The bridge is a representative example of both the through Parker and Pratt trusses. It is also significant due to its local historical associations and its association with the Joliet Bridge and ... More
Fremont Bridge, Spanning Willamette River, carrying Interstate 405 nor...
Significance: Opened in 1973, and the epitome of high-tech, the graceful Fremont Bridge is still both the longest bridge (main span) in Oregon and the longest tied arch bridge in the world. Its 6,000-ton cente... More
Tivoli Island Bridge, Spanning Rock River Channel from mainland to wes...
Significance: In 1866, Zenas King from Ohio received a patent for an innovative tubular iron-arch design. Increasing the sectional area of the top chord toward the ends of the arch, he claimed, strengthened th... More
Erie Canal (Enlarged), Oothout Culvert & Waste Weir, Lock No. 4 vicini...
Significance: This portion of the Erie Canal, just south of Lock #4 in Maplewood, contains Oothout Culvert (#11), a waste weir and stone walling along the banks of the now unused canal ditch. This section of t... More
Ouachita River Bridge, Spanning Ouachita River at U.S. Highway 167, Ca...
Significance: The Ouachita River Bridge at Calion is a good example of the cantilever design used in Arkansas in the late 1920s and early 1930s. The bridge is also significant because it united the southeaster... More
Choate Bridge, Spanning Ipswich River at South Main Street, Ipswich, E...
Significance: The Choate Bridge is an example of early stone construction in the history of American road building. The Essex County Court voted in December, 1764 to name the bridge in honor of Col. John Choat... More