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Northeast Railroad Corridor, Amtrak Route between New York/Connecticut & Connecticut/Rhode Island State Lines, New Haven, New Haven County, CT

Northeast Railroad Corridor, Amtrak Route between New York/Connecticut...

Survey number: HAER CT-11 Public domain photograph - New York City, downtown, United States, free to use, no copyright restrictions image - Picryl description

Northeast Railroad Corridor, Amtrak Route between New York/Connecticut & Connecticut/Rhode Island State Lines, New Haven, New Haven County, CT

Northeast Railroad Corridor, Amtrak Route between New York/Connecticut...

Survey number: HAER CT-11 Public domain photograph of the train tunnel, railroad, train track, free to use, no copyright restrictions image - Picryl description

Bridge L5245, Spans Okabena Creek (formerly carried 330th AvenueTownship Road 187), Okabena, Jackson County, MN

Bridge L5245, Spans Okabena Creek (formerly carried 330th AvenueTownsh...

Significance: Bridge L5245 is locally significant under National Register of Historic Places Criterion C in the area of Engineering as Minnesota's only known surviving example of a lightweight, laced top-chord ... More

Broadway Bridge, Spanning Mississippi River at Broadway Street, Minneapolis, Hennepin County, MN

Broadway Bridge, Spanning Mississippi River at Broadway Street, Minnea...

Significance: The Broadway Bridge was a four-span, wrought iron and steel, high through Pratt truss and was one of two known remaining decorative truss bridges in Minnesota. The bridge was fabricated by the Ki... More

DeGray Creek Bridge, Spanning DeGray Creek at Blish Road (CR 50), Arkadelphia, Clark County, AR

DeGray Creek Bridge, Spanning DeGray Creek at Blish Road (CR 50), Arka...

Significance: The American practice of using pins for bridge connections lasted from the 1860s until the 1920s. DeGray Creek Bridge is the only known surviving pin-connected Pratt pony truss bridge in Arkansas... More

U. S. 23 Middle Bridge, Spanning Levisa Fork, Pikeville, Pike County, KY

U. S. 23 Middle Bridge, Spanning Levisa Fork, Pikeville, Pike County, ...

Picryl description: Public domain image of a bridge, water, historic structure, free to use, no copyright restrictions.

Kentucky Route 49 Bridge, Spanning Rolling Fork River, Bradfordsville, Marion County, KY

Kentucky Route 49 Bridge, Spanning Rolling Fork River, Bradfordsville,...

Significance: In January 1982, there were six Whipple-Murphy trusses in the State. The Kentucky Route 49 Bridge is the oldest Whipple-Murphy bridge in Kentucky. Survey number: HAER KY-17 Building/structure d... More

Mill Creek Bridge, Mill Creek, Alton, Crawford County, IN

Mill Creek Bridge, Mill Creek, Alton, Crawford County, IN

Significance: A pin-connected Pratt through truss with auxiliary horizontal bracing between vertical members. This bracing is similar to that found on many Pratt trusses built by the Wrought Iron Bridge Co. of... More

Shaw Farm Bridge, Spanning Chippewa River at County Trunk Highway E, Island Lake, Rusk County, WI

Shaw Farm Bridge, Spanning Chippewa River at County Trunk Highway E, I...

Significance: The Shaw Farm Bridge is an excellent example of a steel, rigid-connected, Pratt through truss designed by the Wisconsin State Highway Commission. Built in 1923, it is one of only fourteen remaini... More

Purdon Crossing Bridge, Nevada City, Nevada County, CA

Purdon Crossing Bridge, Nevada City, Nevada County, CA

Significance: This is a rare surviving example of a pin-connected Pratt Half-Through Truss. Survey number: HAER CA-40 Building/structure dates: 1889 Initial Construction

Sock Road Bridge, Spanning Beaver Dam River, Lowell, Dodge County, WI

Sock Road Bridge, Spanning Beaver Dam River, Lowell, Dodge County, WI

Significance: One of the oldest metal truss bridges in the state, it may have been one of the earliest truss spans manufactured by the E. Kunert Manufacturing Company (1888-1915) of Watertown, Wisconsin. Offer... More

Tule River Hydroelectric Complex, Tule River Bridge, Spanning North Fork of Middle Fork of Tule River, Springville, Tulare County, CA

Tule River Hydroelectric Complex, Tule River Bridge, Spanning North Fo...

Significance: The Tule River Hydroelectric Complex is associated with events that have made a significant contribution to the broad patterns of local history: the development of hydroelectric power which made ... More

Marietta Road Bridge, Marietta Road, Spanning Inman Railroad Yards, Atlanta, Fulton County, GA

Marietta Road Bridge, Marietta Road, Spanning Inman Railroad Yards, At...

Significance: The Marietta Road Bridge comprises a pair of three span pin connected Double Intersection Pratt through trusses. Its designer and/or fabricator are unknown but the technological character of the ... More

Marietta Road Bridge, Marietta Road, Spanning Inman Railroad Yards, Atlanta, Fulton County, GA

Marietta Road Bridge, Marietta Road, Spanning Inman Railroad Yards, At...

Significance: The Marietta Road Bridge comprises a pair of three span pin connected Double Intersection Pratt through trusses. Its designer and/or fabricator are unknown but the technological character of the ... More

Arizona Eastern Railroad Bridge, Spanning Salt River, Tempe, Maricopa County, AZ

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

Midvale Bridge, Bridge Street Spanning Weiser River, Midvale, Washington County, ID

Midvale Bridge, Bridge Street Spanning Weiser River, Midvale, Washingt...

Significance: The most substantial bridge by J.H. Forbes in the area. It was important in the early development of the community. The bridge was determined eligible for the National Register of Historic Place... More

Bridges of the Upper Tombigbee River Valley, Columbus, Lowndes County, MS

Bridges of the Upper Tombigbee River Valley, Columbus, Lowndes County,...

Public domain photograph - historical image of Mississippi, United States, free to use, no copyright restrictions image - Picryl description

Bridges of the Upper Tombigbee River Valley, Columbus, Lowndes County, MS

Bridges of the Upper Tombigbee River Valley, Columbus, Lowndes County,...

Public domain photograph - historical image of Mississippi, United States, free to use, no copyright restrictions image - Picryl description

Honey Run Bridge, Spanning Butte Creek, bypassed section of Honey Run Road (originally Carr Hill Road), Paradise, Butte County, CA

Honey Run Bridge, Spanning Butte Creek, bypassed section of Honey Run ...

modified Pratt truss (4); 230' long; 3 span, combined wood & iron Significance: The Honey Run Bridge is the best preserved of four surviving examples of Pratt-type wood covered bridges in the United States. Th... More

Northeast Railroad Corridor, Amtrak Route between New York/Connecticut & Connecticut/Rhode Island State Lines, New Haven, New Haven County, CT

Northeast Railroad Corridor, Amtrak Route between New York/Connecticut...

Survey number: HAER CT-11 Public domain photograph of the train tunnel, railroad, train track, free to use, no copyright restrictions image - Picryl description

Bridge L5245, Spans Okabena Creek (formerly carried 330th AvenueTownship Road 187), Okabena, Jackson County, MN

Bridge L5245, Spans Okabena Creek (formerly carried 330th AvenueTownsh...

Significance: Bridge L5245 is locally significant under National Register of Historic Places Criterion C in the area of Engineering as Minnesota's only known surviving example of a lightweight, laced top-chord ... More

Riverside Bridge, Weaver Road spanning South Fork Holston River, Bluff City, Sullivan County, TN

Riverside Bridge, Weaver Road spanning South Fork Holston River, Bluff...

Significance: The bridge is significant as a representative Pratt through truss built by the Converse Bridge Company. Most of the features of the bridge are representative in nature. The top chords and end post... More

Broadway Bridge, Spanning Mississippi River at Broadway Street, Minneapolis, Hennepin County, MN

Broadway Bridge, Spanning Mississippi River at Broadway Street, Minnea...

Significance: The Broadway Bridge was a four-span, wrought iron and steel, high through Pratt truss and was one of two known remaining decorative truss bridges in Minnesota. The bridge was fabricated by the Ki... More

Broadway Bridge, Spanning Mississippi River at Broadway Street, Minneapolis, Hennepin County, MN

Broadway Bridge, Spanning Mississippi River at Broadway Street, Minnea...

Significance: The Broadway Bridge was a four-span, wrought iron and steel, high through Pratt truss and was one of two known remaining decorative truss bridges in Minnesota. The bridge was fabricated by the Ki... More

Buena Vista Ford Bridge, Spanning Round Lick Creek on McClanahan Road, Carthage, Smith County, TN

Buena Vista Ford Bridge, Spanning Round Lick Creek on McClanahan Road,...

Significance: The bridge is significant for its unusually long length for a Pony Pratt truss and for its "fish-bellied" bottom chords. The bridge also derives significance from its association with W.T. Young B... More

East Dingle Bridge, Spanning Bear River on Hunter Mill Road, Montpelier, Bear Lake County, ID

East Dingle Bridge, Spanning Bear River on Hunter Mill Road, Montpelie...

Significance: The East Dingle Bridge is significant because it was built by a prominent western bridge contractor, Charles G. Sheely. The bridge was among the first of the steel bridges in southern Idaho. It ... More

Lea Bridge, Spanning Candies Creek at Old Georgetown Road, Hopewell, Bradley County, TN

Lea Bridge, Spanning Candies Creek at Old Georgetown Road, Hopewell, B...

Significance: The Lea Bridge is an early Pratt pony truss bridge and contains two unusual design features: "beaded T" angles and patented end chord connections. Also, it is only one of two bridges remaining i... More

U. S. 23 Middle Bridge, Spanning Levisa Fork, Pikeville, Pike County, KY

U. S. 23 Middle Bridge, Spanning Levisa Fork, Pikeville, Pike County, ...

Picryl description: Public domain image of a bridge, water, historic structure, free to use, no copyright restrictions.

Baxterville Bridge, Spanning Rio Grande River at Masonic Park Drive, South Fork, Rio Grande County, CO

Baxterville Bridge, Spanning Rio Grande River at Masonic Park Drive, S...

Survey number: HAER CO-76 Building/structure dates: 1932 Initial Construction Building/structure dates: 1957 Subsequent Work Building/structure dates: 1933 Building/structure dates: 1912 Subsequent Work B... More

U.S. 15 Santee River Bridge, SC Road 45 spanning Santee-Cooper Diversion Canal, Eadytown, Berkeley County, SC

U.S. 15 Santee River Bridge, SC Road 45 spanning Santee-Cooper Diversi...

Significance: The SC 45 Bridge over the Santee-Cooper Diversion Canal is an uncommon example of a reinforced concrete and steel truss bridge. Placement of three original through steel trusses one a widened t... More

Colusa Bridge, Spanning Sacramento River, Colusa, Colusa County, CA

Colusa Bridge, Spanning Sacramento River, Colusa, Colusa County, CA

Significance: The turning mechanism, although presently electrically operated, was originally hand-operated, is representative of several swing span bridges throughout California. Survey number: HAER CA-7 Bui... More

Edgefield County Bridge No. 3, Road S-63 spanning Log Creek, Pleasant Lane, Edgefield County, SC

Edgefield County Bridge No. 3, Road S-63 spanning Log Creek, Pleasant ...

Significance: Of the approximately 137 metal truss bridges known to exist in South Carolina, this structure is one of the 66 Pratt through truss bridges listed in the South Carolina Metal Truss Highway Bridge I... More

Purdon Crossing Bridge, Nevada City, Nevada County, CA

Purdon Crossing Bridge, Nevada City, Nevada County, CA

Significance: This is a rare surviving example of a pin-connected Pratt Half-Through Truss. Survey number: HAER CA-40 Building/structure dates: 1889 Initial Construction

Four Mile Bridge, Spanning Elk River on County Road 42, Steamboat Springs, Routt County, CO

Four Mile Bridge, Spanning Elk River on County Road 42, Steamboat Spri...

Significance: The oldest vehicular bridge over the Elk River, the bridge is also the oldest bridge in Routt County and shares the distinction as the oldest bridge in northwest Colorado with the Kay's Ranch Brid... More

Hobbs Bridge, Spanning Elk River on Curtis Road (A494), Coldwater, Lincoln County, TN

Hobbs Bridge, Spanning Elk River on Curtis Road (A494), Coldwater, Lin...

Significance: The bridge is the only known surviving Baltimore Petit truss bridge in Tennessee. Survey number: HAER TN-23 Building/structure dates: 1891 Initial Construction

North Fork Bridge, Spanning North Fork of Licking River, Milford, Bracken County, KY

North Fork Bridge, Spanning North Fork of Licking River, Milford, Brac...

Significance: The North Fork Bridge is the oldest dated Pratt through truss bridge in Kentucky, and one of two built by the Smith Bridge Company in the state of Kentucky. Survey number: HAER KY-2 Building/str... More

Scott Fitzhugh Bridge, Spanning Tennessee River at State Highway 76, Paris, Henry County, TN

Scott Fitzhugh Bridge, Spanning Tennessee River at State Highway 76, P...

Significance: The bridge is significant as a representative example of the Pratt and Parker through truss types as well as for its historical associations with the State highway system and toll bridge program i... More

Midvale Bridge, Bridge Street Spanning Weiser River, Midvale, Washington County, ID

Midvale Bridge, Bridge Street Spanning Weiser River, Midvale, Washingt...

Significance: The most substantial bridge by J.H. Forbes in the area. It was important in the early development of the community. The bridge was determined eligible for the National Register of Historic Place... More

Fryer's Ford Bridge, Spanning East Fork of Point Remove Creek at Fryer Bridge Road (CR 67), Solgohachia, Conway County, AR

Fryer's Ford Bridge, Spanning East Fork of Point Remove Creek at Fryer...

Significance: Fryer's Ford Bridge is the oldest in-service bridge—and the second-oldest bridge of any type—in the State of Arkansas. It is an intact example of a pin-connected Pratt through truss, a type that ... More

Bridges of the Upper Tombigbee River Valley, Columbus, Lowndes County, MS

Bridges of the Upper Tombigbee River Valley, Columbus, Lowndes County,...

Picryl description: Public domain image of a bridge, water, historic structure, free to use, no copyright restrictions.

Bridges of the Upper Tombigbee River Valley, Columbus, Lowndes County, MS

Bridges of the Upper Tombigbee River Valley, Columbus, Lowndes County,...

Public domain photograph - historical image of Mississippi, United States, free to use, no copyright restrictions image - Picryl description

Gianella Bridge, Spanning Sacramento River at State Highway 32, Hamilton City, Glenn County, CA

Gianella Bridge, Spanning Sacramento River at State Highway 32, Hamilt...

Significance: The Gianella Bridge is the oldest remaining highway swing bridge in California. It is important in local history for its relation to events in local economic and agricultural development. It is ... More

Honey Run Bridge, Spanning Butte Creek, bypassed section of Honey Run Road (originally Carr Hill Road), Paradise, Butte County, CA

Honey Run Bridge, Spanning Butte Creek, bypassed section of Honey Run ...

modified Pratt truss (4); 230' long; 3 span, combined wood & iron Significance: The Honey Run Bridge is the best preserved of four surviving examples of Pratt-type wood covered bridges in the United States. Th... More

Honey Run Bridge, Spanning Butte Creek, bypassed section of Honey Run Road (originally Carr Hill Road), Paradise, Butte County, CA

Honey Run Bridge, Spanning Butte Creek, bypassed section of Honey Run ...

modified Pratt truss (4); 230' long; 3 span, combined wood & iron Significance: The Honey Run Bridge is the best preserved of four surviving examples of Pratt-type wood covered bridges in the United States. Th... More

Northeast Railroad Corridor, Amtrak Route between New York/Connecticut & Connecticut/Rhode Island State Lines, New Haven, New Haven County, CT

Northeast Railroad Corridor, Amtrak Route between New York/Connecticut...

Survey number: HAER CT-11 Public domain photograph of electric power generation, power lines, free to use, no copyright restrictions image - Picryl description

Cartersville Bridge, Route 25, spanning James River, Cartersville, Cumberland County, Virginia

Cartersville Bridge, Route 25, spanning James River, Cartersville, Cum...

Significance: Built in 1884, the Cartersville Bridge is an unusual example of composite truss construction. Located where Va. Route 45 crosses the James River, the center four spans of the bridge were washed aw... More

Bridge L5245, Spans Okabena Creek (formerly carried 330th AvenueTownship Road 187), Okabena, Jackson County, MN

Bridge L5245, Spans Okabena Creek (formerly carried 330th AvenueTownsh...

Significance: Bridge L5245 is locally significant under National Register of Historic Places Criterion C in the area of Engineering as Minnesota's only known surviving example of a lightweight, laced top-chord ... More

Dentville Road Bridge, Spanning Hiawassee River on Dentville Road, Benton, Polk County, TN

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

Broadway Bridge, Spanning Mississippi River at Broadway Street, Minneapolis, Hennepin County, MN

Broadway Bridge, Spanning Mississippi River at Broadway Street, Minnea...

Significance: The Broadway Bridge was a four-span, wrought iron and steel, high through Pratt truss and was one of two known remaining decorative truss bridges in Minnesota. The bridge was fabricated by the Ki... More

Hot Springs Bridge, Spanning Bruneau River, Hot Springs Road, Bruneau, Owyhee County, ID

Hot Springs Bridge, Spanning Bruneau River, Hot Springs Road, Bruneau,...

Picryl description: Public domain image of a bridge, railroad structure, train viaduct, free to use, no copyright restrictions.

Lea Bridge, Spanning Candies Creek at Old Georgetown Road, Hopewell, Bradley County, TN

Lea Bridge, Spanning Candies Creek at Old Georgetown Road, Hopewell, B...

Significance: The Lea Bridge is an early Pratt pony truss bridge and contains two unusual design features: "beaded T" angles and patented end chord connections. Also, it is only one of two bridges remaining i... More

Haralson County Bridge, County Road 189, spanning Tallapoosa River, Tallapoosa, Haralson County, GA

Haralson County Bridge, County Road 189, spanning Tallapoosa River, Ta...

Significance: The Haralson County Bridge is a steel pin connected Pratt-through truss constructed by the Virginia Bridge and Iron Company of Roanoke, Virginia. The bridge is composed of one Pratt-through truss... More

Wire Ford Bridge, Spanning Big Mulberry Creek at Wire Road (CR 67), Pleasant Hill, Crawford County, AR

Wire Ford Bridge, Spanning Big Mulberry Creek at Wire Road (CR 67), Pl...

Significance: Wire Ford Bridge is a good example of early twentieth century metal truss bridge technology. It is the only surviving multiple-span Pratt truss bridge in the Arkansas State Highway and Transporta... More

U. S. 23 Middle Bridge, Spanning Levisa Fork, Pikeville, Pike County, KY

U. S. 23 Middle Bridge, Spanning Levisa Fork, Pikeville, Pike County, ...

Picryl description: Public domain photograph of a road works, construction, excavation, free to use, no copyright restrictions.

Wisconsin-Michigan Railroad Bridge, Spanning Menominee River, on County Trunk Highway "JJ", Wagner, Marinette County, WI

Wisconsin-Michigan Railroad Bridge, Spanning Menominee River, on Count...

Significance: The Wisconsin & Michigan Railroad Bridge is an example of a pin-connected Pratt through truss, a standard design used during the late 19th century. The bridge is unusual, in that it consists of t... More

Purdon Crossing Bridge, Nevada City, Nevada County, CA

Purdon Crossing Bridge, Nevada City, Nevada County, CA

Significance: This is a rare surviving example of a pin-connected Pratt Half-Through Truss. Survey number: HAER CA-40 Building/structure dates: 1889 Initial Construction

Hobbs Bridge, Spanning Elk River on Curtis Road (A494), Coldwater, Lincoln County, TN

Hobbs Bridge, Spanning Elk River on Curtis Road (A494), Coldwater, Lin...

Significance: The bridge is the only known surviving Baltimore Petit truss bridge in Tennessee. Survey number: HAER TN-23 Building/structure dates: 1891 Initial Construction

Grand Avenue Bridge, Spanning O'Neil Creek at Grand Avenue, Neillsville, Clark County, WI

Grand Avenue Bridge, Spanning O'Neil Creek at Grand Avenue, Neillsvill...

Significance: One of few ornately decorated iron truss Pratt bridge ever erected in Wisconsin. It was built by the Wisconsin Bridge and Iron Co., one of the leading nineteenth century bridge-building firms. S... More

Turtleville Iron Bridge, Spanning Turtle Creek, on Lathers Road, Beloit, Rock County, WI

Turtleville Iron Bridge, Spanning Turtle Creek, on Lathers Road, Beloi...

Significance: The Turtleville Iron Bridge carries Lather Road 140 feet, from abutment face to abutment face, across Turtle Creek. It was built in 1887 by the Wisconsin Bridge and Iron Company, and is a Pratt t... More

Tule River Hydroelectric Complex, Tule River Bridge, Spanning North Fork of Middle Fork of Tule River, Springville, Tulare County, CA

Tule River Hydroelectric Complex, Tule River Bridge, Spanning North Fo...

Significance: The Tule River Hydroelectric Complex is associated with events that have made a significant contribution to the broad patterns of local history: the development of hydroelectric power which made ... More

Marietta Road Bridge, Marietta Road, Spanning Inman Railroad Yards, Atlanta, Fulton County, GA

Marietta Road Bridge, Marietta Road, Spanning Inman Railroad Yards, At...

Significance: The Marietta Road Bridge comprises a pair of three span pin connected Double Intersection Pratt through trusses. Its designer and/or fabricator are unknown but the technological character of the ... More

Heath Bridge, Bloomberg road over Chippewa River, Exeland, Sawyer County, WI

Heath Bridge, Bloomberg road over Chippewa River, Exeland, Sawyer Coun...

Significance: Crossing the Chippewa River in southern Sawyer County, Wisconsin, the Heath Bridge is a steel, riveted, two-span, overhead, Pratt truss highway bridge. Constructed in 1914, it is one of the first... More

Bridges of the Upper Tombigbee River Valley, Columbus, Lowndes County, MS

Bridges of the Upper Tombigbee River Valley, Columbus, Lowndes County,...

Public domain photograph - historical image of Mississippi, United States, free to use, no copyright restrictions image - Picryl description

Bridges of the Upper Tombigbee River Valley, Columbus, Lowndes County, MS

Bridges of the Upper Tombigbee River Valley, Columbus, Lowndes County,...

Public domain image of a train station in Boston, Massachusetts, free to use, no copyright restrictions - Picryl description

Bridges of the Upper Tombigbee River Valley, Columbus, Lowndes County, MS

Bridges of the Upper Tombigbee River Valley, Columbus, Lowndes County,...

Public domain photograph - historical image of Mississippi, United States, free to use, no copyright restrictions image - Picryl description

Northeast Railroad Corridor, Amtrak Route between New York/Connecticut & Connecticut/Rhode Island State Lines, New Haven, New Haven County, CT

Northeast Railroad Corridor, Amtrak Route between New York/Connecticut...

Survey number: HAER CT-11 Public domain photograph - city, downtown, New York, United States, free to use, no copyright restrictions image - Picryl description

Cartersville Bridge, Route 25, spanning James River, Cartersville, Cumberland County, Virginia

Cartersville Bridge, Route 25, spanning James River, Cartersville, Cum...

Significance: Built in 1884, the Cartersville Bridge is an unusual example of composite truss construction. Located where Va. Route 45 crosses the James River, the center four spans of the bridge were washed aw... More

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