Burr Arch Trusses

Survey number: HABS VA-567 Public domain photograph - historical image of Virginia, United States, free to use, no copyright restrictions image - Picryl description

Significance: An example of mid-nineteenth-century covered bridge construction. Survey number: HABS PA-351 Building/structure dates: 1868 Initial Construction

Significance: This slightly altered late-nineteenth century covered bridge is an excellent example of this kind of bridge construction in Bedford County. A number of other Burr arch covered bridges were built More

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

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

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

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

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

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

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

Significance: Local bridge contractor Emmett L. Kennedy built the Forsythe Bridge in 1888. The Kennedy family of Rushville built nearly sixty covered bridges, which are distinguished primarily by the scrollwor More

Significance: Local bridge contractor Emmett L. Kennedy built the Forsythe Bridge in 1888. The Kennedy family of Rushville built nearly sixty covered bridges, which are distinguished primarily by the scrollwor More

Significance: Local bridge contractor Emmett L. Kennedy built the Forsythe Bridge in 1888. The Kennedy family of Rushville built nearly sixty covered bridges, which are distinguished primarily by the scrollwor More

Significance: Local bridge contractor Emmett L. Kennedy built the Forsythe Bridge in 1888. The Kennedy family of Rushville built nearly sixty covered bridges, which are distinguished primarily by the scrollwor More

Significance: Local bridge contractor Emmett L. Kennedy built the Forsythe Bridge in 1888. The Kennedy family of Rushville built nearly sixty covered bridges, which are distinguished primarily by the scrollwor More

Significance: Local bridge contractor Emmett L. Kennedy built the Forsythe Bridge in 1888. The Kennedy family of Rushville built nearly sixty covered bridges, which are distinguished primarily by the scrollwor More

Significance: Local bridge contractor Emmett L. Kennedy built the Forsythe Bridge in 1888. The Kennedy family of Rushville built nearly sixty covered bridges, which are distinguished primarily by the scrollwor More

Significance: Local bridge contractor Emmett L. Kennedy built the Forsythe Bridge in 1888. The Kennedy family of Rushville built nearly sixty covered bridges, which are distinguished primarily by the scrollwor More

Significance: Local bridge contractor Emmett L. Kennedy built the Forsythe Bridge in 1888. The Kennedy family of Rushville built nearly sixty covered bridges, which are distinguished primarily by the scrollwor More

Significance: Local bridge contractor Emmett L. Kennedy built the Forsythe Bridge in 1888. The Kennedy family of Rushville built nearly sixty covered bridges, which are distinguished primarily by the scrollwor More

Significance: Local bridge contractor Emmett L. Kennedy built the Forsythe Bridge in 1888. The Kennedy family of Rushville built nearly sixty covered bridges, which are distinguished primarily by the scrollwor More

Significance: Local bridge contractor Emmett L. Kennedy built the Forsythe Bridge in 1888. The Kennedy family of Rushville built nearly sixty covered bridges, which are distinguished primarily by the scrollwor More

Significance: Local bridge contractor Emmett L. Kennedy built the Forsythe Bridge in 1888. The Kennedy family of Rushville built nearly sixty covered bridges, which are distinguished primarily by the scrollwor More

Significance: Local bridge contractor Emmett L. Kennedy built the Forsythe Bridge in 1888. The Kennedy family of Rushville built nearly sixty covered bridges, which are distinguished primarily by the scrollwor More

Significance: One of the longest wood bridges in the state, this bridge was a fine example of early 19th century engineering. Attributed to noted early bridge engineer, Theodore Burr. Survey number: HABS PA-5 More

Significance: One of the longest wood bridges in the state, this bridge was a fine example of early 19th century engineering. Attributed to noted early bridge engineer, Theodore Burr. Survey number: HABS PA-5 More

Survey number: HABS OH-2229 National Register of Historic Places NRIS Number: 71000651

Survey number: HABS OH-2229 National Register of Historic Places NRIS Number: 71000651

Survey number: HABS OH-2229 National Register of Historic Places NRIS Number: 71000651

Survey number: HABS OH-2229 National Register of Historic Places NRIS Number: 71000651

Significance: This simple covered bridge, erected in 1860, is one of the few covered bridges left in Chester County, and is the only one planned to preserve. Survey number: HABS PA-1108 Building/structure da More

Significance: This simple covered bridge, erected in 1860, is one of the few covered bridges left in Chester County, and is the only one planned to preserve. Survey number: HABS PA-1108 Building/structure da More

Significance: This simple covered bridge, erected in 1860, is one of the few covered bridges left in Chester County, and is the only one planned to preserve. Survey number: HABS PA-1108 Building/structure da More

Significance: This simple covered bridge, erected in 1860, is one of the few covered bridges left in Chester County, and is the only one planned to preserve. Survey number: HABS PA-1108 Building/structure da More

Significance: This is a single span structure of the burr truss type, having a clear span of 165'-9" with a 17 foot center roadway flanked either side by 4 1/2 foot walks. The bridge was erected in 1880 by Emm More

Significance: This is a single span structure of the burr truss type, having a clear span of 165'-9" with a 17 foot center roadway flanked either side by 4 1/2 foot walks. The bridge was erected in 1880 by Emm More

Significance: This is a single span structure of the burr truss type, having a clear span of 165'-9" with a 17 foot center roadway flanked either side by 4 1/2 foot walks. The bridge was erected in 1880 by Emm More

Significance: This is a single span structure of the burr truss type, having a clear span of 165'-9" with a 17 foot center roadway flanked either side by 4 1/2 foot walks. The bridge was erected in 1880 by Emm More

Significance: This is a single span structure of the burr truss type, having a clear span of 165'-9" with a 17 foot center roadway flanked either side by 4 1/2 foot walks. The bridge was erected in 1880 by Emm More

Significance: This is a single span structure of the burr truss type, having a clear span of 165'-9" with a 17 foot center roadway flanked either side by 4 1/2 foot walks. The bridge was erected in 1880 by Emm More

Significance: This is a single span structure of the burr truss type, having a clear span of 165'-9" with a 17 foot center roadway flanked either side by 4 1/2 foot walks. The bridge was erected in 1880 by Emm More

Significance: This is a single span structure of the burr truss type, having a clear span of 165'-9" with a 17 foot center roadway flanked either side by 4 1/2 foot walks. The bridge was erected in 1880 by Emm More

Significance: Built 1870 by J.J. Newman & B.F. Erwin under firm name of Newman & Erwin, Middleton, Ohio, for commissioners of Pendleton County. Unprocessed Field note material exists for this structure: FN-11 More

Significance: Built 1870 by J.J. Newman & B.F. Erwin under firm name of Newman & Erwin, Middleton, Ohio, for commissioners of Pendleton County. Unprocessed Field note material exists for this structure: FN-11 More

Significance: Built 1870 by J.J. Newman & B.F. Erwin under firm name of Newman & Erwin, Middleton, Ohio, for commissioners of Pendleton County. Unprocessed Field note material exists for this structure: FN-11 More

Significance: Built 1870 by J.J. Newman & B.F. Erwin under firm name of Newman & Erwin, Middleton, Ohio, for commissioners of Pendleton County. Unprocessed Field note material exists for this structure: FN-11 More

Significance: Built 1870 by J.J. Newman & B.F. Erwin under firm name of Newman & Erwin, Middleton, Ohio, for commissioners of Pendleton County. Unprocessed Field note material exists for this structure: FN-11 More

Significance: Built 1870 by J.J. Newman & B.F. Erwin under firm name of Newman & Erwin, Middleton, Ohio, for commissioners of Pendleton County. Unprocessed Field note material exists for this structure: FN-11 More

Significance: Built 1870 by J.J. Newman & B.F. Erwin under firm name of Newman & Erwin, Middleton, Ohio, for commissioners of Pendleton County. Unprocessed Field note material exists for this structure: FN-11 More

Significance: Built 1870 by J.J. Newman & B.F. Erwin under firm name of Newman & Erwin, Middleton, Ohio, for commissioners of Pendleton County. Unprocessed Field note material exists for this structure: FN-11 More

Report includes engineering analysis of Burr arch truss. Significance: For almost two centuries, from 1735 until 1926, this site was used for water-powered industries. Erected in 1860 by local bridge builder J More

Report includes engineering analysis of Burr arch truss. Significance: For almost two centuries, from 1735 until 1926, this site was used for water-powered industries. Erected in 1860 by local bridge builder J More

Report includes engineering analysis of Burr arch truss. Significance: For almost two centuries, from 1735 until 1926, this site was used for water-powered industries. Erected in 1860 by local bridge builder J More

Report includes engineering analysis of Burr arch truss. Significance: For almost two centuries, from 1735 until 1926, this site was used for water-powered industries. Erected in 1860 by local bridge builder J More

Report includes engineering analysis of Burr arch truss. Significance: For almost two centuries, from 1735 until 1926, this site was used for water-powered industries. Erected in 1860 by local bridge builder J More

Report includes engineering analysis of Burr arch truss. Significance: For almost two centuries, from 1735 until 1926, this site was used for water-powered industries. Erected in 1860 by local bridge builder J More

Report includes engineering analysis of Burr arch truss. Significance: For almost two centuries, from 1735 until 1926, this site was used for water-powered industries. Erected in 1860 by local bridge builder J More

Report includes engineering analysis of Burr arch truss. Significance: For almost two centuries, from 1735 until 1926, this site was used for water-powered industries. Erected in 1860 by local bridge builder J More

Report includes engineering analysis of Burr arch truss. Significance: For almost two centuries, from 1735 until 1926, this site was used for water-powered industries. Erected in 1860 by local bridge builder J More

See HAER No. IN-108 for additional photographs and data pages. Significance: The Whitewater Canal Aqueduct is the only surviving wood aqueduct in the United States. Unprocessed Field note material exists for More

See HAER No. IN-108 for additional photographs and data pages. Significance: The Whitewater Canal Aqueduct is the only surviving wood aqueduct in the United States. Unprocessed Field note material exists for More

See HAER No. IN-108 for additional photographs and data pages. Significance: The Whitewater Canal Aqueduct is the only surviving wood aqueduct in the United States. Unprocessed Field note material exists for More

See HAER No. IN-108 for additional photographs and data pages. Significance: The Whitewater Canal Aqueduct is the only surviving wood aqueduct in the United States. Unprocessed Field note material exists for More

See HAER No. IN-108 for additional photographs and data pages. Significance: The Whitewater Canal Aqueduct is the only surviving wood aqueduct in the United States. Unprocessed Field note material exists for More

See HAER No. IN-108 for additional photographs and data pages. Significance: The Whitewater Canal Aqueduct is the only surviving wood aqueduct in the United States. Unprocessed Field note material exists for More

See HAER No. IN-108 for additional photographs and data pages. Significance: The Whitewater Canal Aqueduct is the only surviving wood aqueduct in the United States. Unprocessed Field note material exists for More

See HAER No. IN-108 for additional photographs and data pages. Significance: The Whitewater Canal Aqueduct is the only surviving wood aqueduct in the United States. Unprocessed Field note material exists for More

See HAER No. IN-108 for additional photographs and data pages. Significance: The Whitewater Canal Aqueduct is the only surviving wood aqueduct in the United States. Unprocessed Field note material exists for More

Significance: One of five remaining covered wooden bridges in Berks County, the bridge is a contributing resource in the Oley Township Historic District. It is distinctive for its two-phase construction: an arc More

Significance: One of five remaining covered wooden bridges in Berks County, the bridge is a contributing resource in the Oley Township Historic District. It is distinctive for its two-phase construction: an arc More

Significance: One of five remaining covered wooden bridges in Berks County, the bridge is a contributing resource in the Oley Township Historic District. It is distinctive for its two-phase construction: an arc More

Significance: One of five remaining covered wooden bridges in Berks County, the bridge is a contributing resource in the Oley Township Historic District. It is distinctive for its two-phase construction: an arc More

Significance: One of five remaining covered wooden bridges in Berks County, the bridge is a contributing resource in the Oley Township Historic District. It is distinctive for its two-phase construction: an arc More

Significance: One of five remaining covered wooden bridges in Berks County, the bridge is a contributing resource in the Oley Township Historic District. It is distinctive for its two-phase construction: an arc More

Significance: One of five remaining covered wooden bridges in Berks County, the bridge is a contributing resource in the Oley Township Historic District. It is distinctive for its two-phase construction: an arc More

Significance: One of five remaining covered wooden bridges in Berks County, the bridge is a contributing resource in the Oley Township Historic District. It is distinctive for its two-phase construction: an arc More

Significance: One of five remaining covered wooden bridges in Berks County, the bridge is a contributing resource in the Oley Township Historic District. It is distinctive for its two-phase construction: an arc More

Significance: One of five remaining covered wooden bridges in Berks County, the bridge is a contributing resource in the Oley Township Historic District. It is distinctive for its two-phase construction: an arc More

Significance: One of five remaining covered wooden bridges in Berks County, the bridge is a contributing resource in the Oley Township Historic District. It is distinctive for its two-phase construction: an arc More

Significance: One of five remaining covered wooden bridges in Berks County, the bridge is a contributing resource in the Oley Township Historic District. It is distinctive for its two-phase construction: an arc More

Significance: One of five remaining covered wooden bridges in Berks County, the bridge is a contributing resource in the Oley Township Historic District. It is distinctive for its two-phase construction: an arc More

Significance: One of five remaining covered wooden bridges in Berks County, the bridge is a contributing resource in the Oley Township Historic District. It is distinctive for its two-phase construction: an arc More

Significance: One of five remaining covered wooden bridges in Berks County, the bridge is a contributing resource in the Oley Township Historic District. It is distinctive for its two-phase construction: an arc More

Significance: One of five remaining covered wooden bridges in Berks County, the bridge is a contributing resource in the Oley Township Historic District. It is distinctive for its two-phase construction: an arc More

Significance: Built 1807-1808 by John Wallace, contractor, the bridge played an important part in General Morgan's raid on Cynthiana during the Civil War. Unprocessed Field note material exists for this struct More

Significance: Built 1807-1808 by John Wallace, contractor, the bridge played an important part in General Morgan's raid on Cynthiana during the Civil War. Unprocessed Field note material exists for this struct More

Significance: Built 1807-1808 by John Wallace, contractor, the bridge played an important part in General Morgan's raid on Cynthiana during the Civil War. Unprocessed Field note material exists for this struct More

Significance: Built 1807-1808 by John Wallace, contractor, the bridge played an important part in General Morgan's raid on Cynthiana during the Civil War. Unprocessed Field note material exists for this struct More

Significance: Built 1807-1808 by John Wallace, contractor, the bridge played an important part in General Morgan's raid on Cynthiana during the Civil War. Unprocessed Field note material exists for this struct More

Significance: Built 1807-1808 by John Wallace, contractor, the bridge played an important part in General Morgan's raid on Cynthiana during the Civil War. Unprocessed Field note material exists for this struct More

Significance: Built 1807-1808 by John Wallace, contractor, the bridge played an important part in General Morgan's raid on Cynthiana during the Civil War. Unprocessed Field note material exists for this struct More

Significance: The Pine Grove Bridge was built in 1884 after a destructive flood carried away an 1846 at this site. The county hired Capt. Elias McMellen, a well-respected and prolific Lancaster bridge builder More

Significance: The Pine Grove Bridge was built in 1884 after a destructive flood carried away an 1846 at this site. The county hired Capt. Elias McMellen, a well-respected and prolific Lancaster bridge builder More

Significance: The Pine Grove Bridge was built in 1884 after a destructive flood carried away an 1846 at this site. The county hired Capt. Elias McMellen, a well-respected and prolific Lancaster bridge builder More

Significance: The Pine Grove Bridge was built in 1884 after a destructive flood carried away an 1846 at this site. The county hired Capt. Elias McMellen, a well-respected and prolific Lancaster bridge builder More

Significance: The Pine Grove Bridge was built in 1884 after a destructive flood carried away an 1846 at this site. The county hired Capt. Elias McMellen, a well-respected and prolific Lancaster bridge builder More

Significance: The Pine Grove Bridge was built in 1884 after a destructive flood carried away an 1846 at this site. The county hired Capt. Elias McMellen, a well-respected and prolific Lancaster bridge builder More

Significance: The Pine Grove Bridge was built in 1884 after a destructive flood carried away an 1846 at this site. The county hired Capt. Elias McMellen, a well-respected and prolific Lancaster bridge builder More

Significance: The Pine Grove Bridge was built in 1884 after a destructive flood carried away an 1846 at this site. The county hired Capt. Elias McMellen, a well-respected and prolific Lancaster bridge builder More

Significance: The Pine Grove Bridge was built in 1884 after a destructive flood carried away an 1846 at this site. The county hired Capt. Elias McMellen, a well-respected and prolific Lancaster bridge builder More