Historic Columbia River Highway, Oneonta Gorge Creek Bridge, Spanning ...
Significance: One of two nearly identical reinforced-concrete girder trestles on the Historic Columbia River Highway and one of four extant structures on the route that have a distinctive cap and arch concrete ... More
Steel Bridge, Spanning Willamette River at State Route 99, Portland, M...
Significance: An early example of the Waddell-type vertical lift bridge, the Steel Bridge documents that, guided by Harrington, most features of the type achieved "standard" form by 1912. It also demonstrates ... More
North Fork Butter Creek Bridge, Spanning North Fork Butter Creek Bridg...
Significance: The North Fork Butter Creek Bridge #1189, which is located in the community of Vinson on Heppner Highway in Umatilla County, was constructed in 1926. The Butter Creek Bridge is a 2-span reinforced... More
North Fork Butter Creek Bridge, Spanning North Fork Butter Creek Bridg...
Significance: The North Fork Butter Creek Bridge #1189, which is located in the community of Vinson on Heppner Highway in Umatilla County, was constructed in 1926. The Butter Creek Bridge is a 2-span reinforced... More
North Fork Butter Creek Bridge, Spanning North Fork Butter Creek Bridg...
Significance: The North Fork Butter Creek Bridge #1189, which is located in the community of Vinson on Heppner Highway in Umatilla County, was constructed in 1926. The Butter Creek Bridge is a 2-span reinforced... More
Historic Columbia River Highway, Sandy River Bridge at Troutdale, Hist...
Significance: First modern bridge constructed on what became the Historic Columbia River Highway. Designed by the premier bridge engineering firm of Waddell and Harrington, which also created the 1912 Steel Br... More
Lewis & Clark Bridge, Spanning Lewis & Clark River at Milepoint 4.78, ...
Significance: It is Oregon's only remaining single-leaf bascule draw span built before WWII and is an early moveable span bridge designed by state bridge engineer Conde B. McCullough. The bridge is significant ... More
Grave Creek Bridge, Spanning Grave Creek on Sunny Valley Loop Road, Su...
Significance: Achieves statewide significance as part of a thematic group of timber-constructed, covered bridges of Oregon, and it is the last remaining covered bridge in Josephine County. It is an intact examp... More
Applegate River Bridge No. 01985, Spanning Applegate River at Milepost...
Significance: The Applegate River Bridge #01985 is significant as an intact example of a pre-WWII steel through truss. It is significant as an embodiment of an obsolete type and method of construction, a Parker... More
Moffett Creek Bridge, Spanning Moffett Creek at Old Columbia River Hig...
Significance: Moffett Creek Bridge, designed by L.W. Metzger, is considered one of the most unique bridges along the Old Columbia River Highway. The 205 foot structure has an arched span of 170 feet and is 70 ... More
Ross Island Bridge, Spanning Willamette River at Powell Boulevard, Por...
Significance: The Ross Island Bridge is one in an ensemble of twelve monumental highway bridges across the lower Willamette River. It is one of five Portland spans (with Burnside, Sellwood, Lovejoy Viaduct, an... More
Ross Island Bridge, Spanning Willamette River at Powell Boulevard, Por...
Significance: The Ross Island Bridge is one in an ensemble of twelve monumental highway bridges across the lower Willamette River. It is one of five Portland spans (with Burnside, Sellwood, Lovejoy Viaduct, an... More
Rouge River Bridge, Spanning Rouge River on Depot Street, Rogue River,...
The original survey incorrectly called the bridge "Rouge River Bridge." The name has been corrected to "Rogue River Bridge." The same change was made to the address. Significance: Completed in 1950, the Rogue R... More
Spring Creek Bridge, Spanning Spring Creek at Milepoint 253.98 on Oreg...
Significance: Known locally as the "Romeo and Juliet" Bridge, the Spring Creek Bridge is unique in Oregon for its rusticated abutments and pedestrian promenades that extend underneath the deck to intersect with... More
Depoe Bay Bridge, Spanning Depoe Bay at Oregon Coast Highway (U.S.101)...
Significance: Depoe Bay Bridge was designed in 1926 by State Bridge Engineer, Conde B. McCullough. It was the first of thirteen reinforced deck and through arches that were built on the Oregon Coast Highway. ... More
Depoe Bay Bridge, Spanning Depoe Bay at Oregon Coast Highway (U.S.101)...
Significance: Depoe Bay Bridge was designed in 1926 by State Bridge Engineer, Conde B. McCullough. It was the first of thirteen reinforced deck and through arches that were built on the Oregon Coast Highway. ... More
Depoe Bay Bridge, Spanning Depoe Bay at Oregon Coast Highway (U.S.101)...
Significance: Depoe Bay Bridge was designed in 1926 by State Bridge Engineer, Conde B. McCullough. It was the first of thirteen reinforced deck and through arches that were built on the Oregon Coast Highway. ... More
Depoe Bay Bridge, Spanning Depoe Bay at Oregon Coast Highway (U.S.101)...
Significance: Depoe Bay Bridge was designed in 1926 by State Bridge Engineer, Conde B. McCullough. It was the first of thirteen reinforced deck and through arches that were built on the Oregon Coast Highway. ... More
Old Young's Bay Bridge, Spanning Young's Bay at Milepoint 6.89 on Warr...
Significance: It was the first moveable span bridge designed by state bridge engineer Conde B. McCullough and is one of only five surviving double-leaf bascule bridges in Oregon built before 1941. The bridge is... More
Neawanna Creek Bridge, Spanning Neawanna Creek at Milepoint 19.72 on U...
Significance: The Neawanna Creek Bridge #1305 is significant as an intact example of a 1930s continuous concrete, multi-span highway bridge, utilizing Hardy Cross's moment distribution theory, and for its assoc... More
Neawanna Creek Bridge, Spanning Neawanna Creek at Milepoint 19.72 on U...
Significance: The Neawanna Creek Bridge #1305 is significant as an intact example of a 1930s continuous concrete, multi-span highway bridge, utilizing Hardy Cross's moment distribution theory, and for its assoc... More
Pilot Butte Canal, Bend, Deschutes County, OR
Significance: Construction and completion of the canal in 1904 introduced irrigation to Central Oregon and contributed to the settlement, growth and creation of Bend. Although several other private irrigation c... More
Pilot Butte Canal, Bend, Deschutes County, OR
Significance: Construction and completion of the canal in 1904 introduced irrigation to Central Oregon and contributed to the settlement, growth and creation of Bend. Although several other private irrigation c... More
Larwood Bridge, Spanning Crabtree Creek, Fish Hatchery Road (CR 648), ...
Significance: Larwood Bridge is one of the best surviving examples of the standard Howe truss covered bridge designed by the Oregon State Highway Commission in early 20th century. It illustrates the open-sided... More
Historic Columbia River Highway, Mosier Twin Tunnels, East of Mosier, ...
Significance: The only set of highway tunnels with adits or windows in Oregon. One of the few examples of this type of tunnel in the United States. Survey number: HAER OR-36-T Building/structure dates: 1920 ... More
Historic Columbia River Highway, Mosier Twin Tunnels, East of Mosier, ...
Significance: The only set of highway tunnels with adits or windows in Oregon. One of the few examples of this type of tunnel in the United States. Survey number: HAER OR-36-T Building/structure dates: 1920 ... More
Historic Columbia River Highway, Mosier Twin Tunnels, East of Mosier, ...
Significance: The only set of highway tunnels with adits or windows in Oregon. One of the few examples of this type of tunnel in the United States. Survey number: HAER OR-36-T Building/structure dates: 1920 ... More
Lakeview Downtown Historic District, E, F & G Streets between Second S...
Significance: The district is locally significant as a commercial and social center in south central Oregon. The district is a reflection of Lakeview's growth and economic conditions during the first half of th... More
Lakeview Downtown Historic District, E, F & G Streets between Second S...
Significance: The district is locally significant as a commercial and social center in south central Oregon. The district is a reflection of Lakeview's growth and economic conditions during the first half of th... More
Lakeview Downtown Historic District, E, F & G Streets between Second S...
Significance: The district is locally significant as a commercial and social center in south central Oregon. The district is a reflection of Lakeview's growth and economic conditions during the first half of th... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Steel Bridge, Spanning Willamette River at State Route 99, Portland, M...
Significance: An early example of the Waddell-type vertical lift bridge, the Steel Bridge documents that, guided by Harrington, most features of the type achieved "standard" form by 1912. It also demonstrates ... More
Steel Bridge, Spanning Willamette River at State Route 99, Portland, M...
Significance: An early example of the Waddell-type vertical lift bridge, the Steel Bridge documents that, guided by Harrington, most features of the type achieved "standard" form by 1912. It also demonstrates ... More
Steel Bridge, Spanning Willamette River at State Route 99, Portland, M...
Significance: An early example of the Waddell-type vertical lift bridge, the Steel Bridge documents that, guided by Harrington, most features of the type achieved "standard" form by 1912. It also demonstrates ... More
Steel Bridge, Spanning Willamette River at State Route 99, Portland, M...
Significance: An early example of the Waddell-type vertical lift bridge, the Steel Bridge documents that, guided by Harrington, most features of the type achieved "standard" form by 1912. It also demonstrates ... More
North Fork Butter Creek Bridge, Spanning North Fork Butter Creek Bridg...
Significance: The North Fork Butter Creek Bridge #1189, which is located in the community of Vinson on Heppner Highway in Umatilla County, was constructed in 1926. The Butter Creek Bridge is a 2-span reinforced... More
North Fork Butter Creek Bridge, Spanning North Fork Butter Creek Bridg...
Significance: The North Fork Butter Creek Bridge #1189, which is located in the community of Vinson on Heppner Highway in Umatilla County, was constructed in 1926. The Butter Creek Bridge is a 2-span reinforced... More
Grande Ronde River Bridge, Sprnning Grande Ronde River on Old Oregon T...
Significance: It is a 312'-long bridge with a main span comprised of a 134'-long reinforced concrete rib deck arch over the Grande Ronde River, and a 175'-long concrete viaduct crossing over the Union Pacific C... More
Grande Ronde River Bridge, Sprnning Grande Ronde River on Old Oregon T...
Significance: It is a 312'-long bridge with a main span comprised of a 134'-long reinforced concrete rib deck arch over the Grande Ronde River, and a 175'-long concrete viaduct crossing over the Union Pacific C... More
Grande Ronde River Bridge, Sprnning Grande Ronde River on Old Oregon T...
Significance: It is a 312'-long bridge with a main span comprised of a 134'-long reinforced concrete rib deck arch over the Grande Ronde River, and a 175'-long concrete viaduct crossing over the Union Pacific C... More
McCord Creek Bridge, Spanning McCord Creek at Milepost 38.62 on Old Co...
Significance: The McCord Creek Bridge is associated with the Columbia River Highway, a National Historic Landmark. Built over a ten-year period (1913-1922), the Columbia River Highway is nationally significant ... More
Historic Columbia River Highway, Mosier Creek Bridge, Spanning Mosier ...
Survey number: HAER OR-36-U National Register of Historic Places NRIS Number: 83004168
Historic Columbia River Highway, Sandy River Bridge at Troutdale, Hist...
Significance: First modern bridge constructed on what became the Historic Columbia River Highway. Designed by the premier bridge engineering firm of Waddell and Harrington, which also created the 1912 Steel Br... More
Grave Creek Bridge, Spanning Grave Creek on Sunny Valley Loop Road, Su...
Significance: Achieves statewide significance as part of a thematic group of timber-constructed, covered bridges of Oregon, and it is the last remaining covered bridge in Josephine County. It is an intact examp... More
Dry Creek Bridge, Spanning Dry Creek on Harris Road (County Road 697),...
Significance: The Dry Creek (Harris Road) Bridge #59C35, a riveted steel, pony through truss of the Warren truss configuration is significant for its historic association with rural Umatilla County, an importan... More
Applegate River Bridge No. 01985, Spanning Applegate River at Milepost...
Significance: The Applegate River Bridge #01985 is significant as an intact example of a pre-WWII steel through truss. It is significant as an embodiment of an obsolete type and method of construction, a Parker... More
Ross Island Bridge, Spanning Willamette River at Powell Boulevard, Por...
Significance: The Ross Island Bridge is one in an ensemble of twelve monumental highway bridges across the lower Willamette River. It is one of five Portland spans (with Burnside, Sellwood, Lovejoy Viaduct, an... More
Ross Island Bridge, Spanning Willamette River at Powell Boulevard, Por...
Significance: The Ross Island Bridge is one in an ensemble of twelve monumental highway bridges across the lower Willamette River. It is one of five Portland spans (with Burnside, Sellwood, Lovejoy Viaduct, an... More
Ross Island Bridge, Spanning Willamette River at Powell Boulevard, Por...
Significance: The Ross Island Bridge is one in an ensemble of twelve monumental highway bridges across the lower Willamette River. It is one of five Portland spans (with Burnside, Sellwood, Lovejoy Viaduct, an... More
Rouge River Bridge, Spanning Rouge River on Depot Street, Rogue River,...
The original survey incorrectly called the bridge "Rouge River Bridge." The name has been corrected to "Rogue River Bridge." The same change was made to the address. Significance: Completed in 1950, the Rogue R... More
Fisher School Covered Bridge, Crab Creek Road at Fiver Rivers Road, Fi...
Significance: It is located in the rugged foothills of Lincoln County near the former community of Fisher, and crosses Five Rivers, named for the five streams that make up the single stream the bridge spans. Th... More
Fisher School Covered Bridge, Crab Creek Road at Fiver Rivers Road, Fi...
Significance: It is located in the rugged foothills of Lincoln County near the former community of Fisher, and crosses Five Rivers, named for the five streams that make up the single stream the bridge spans. Th... More
Isthmus Slough Bridge, Spanning Isthmus Slough at Milepoint 0.2, Coos ...
Significance: The Isthmus Slough Bridge is significant as a good example of the bascule bridge type. This bridge is unique within the Oregon context at it is the only known bascule structure that utilizes a blo... More
Isthmus Slough Bridge, Spanning Isthmus Slough at Milepoint 0.2, Coos ...
Significance: The Isthmus Slough Bridge is significant as a good example of the bascule bridge type. This bridge is unique within the Oregon context at it is the only known bascule structure that utilizes a blo... More
Depoe Bay Bridge, Spanning Depoe Bay at Oregon Coast Highway (U.S.101)...
Significance: Depoe Bay Bridge was designed in 1926 by State Bridge Engineer, Conde B. McCullough. It was the first of thirteen reinforced deck and through arches that were built on the Oregon Coast Highway. ... More
Old Young's Bay Bridge, Spanning Young's Bay at Milepoint 6.89 on Warr...
Significance: It was the first moveable span bridge designed by state bridge engineer Conde B. McCullough and is one of only five surviving double-leaf bascule bridges in Oregon built before 1941. The bridge is... More
Neawanna Creek Bridge, Spanning Neawanna Creek at Milepoint 19.72 on U...
Significance: The Neawanna Creek Bridge #1305 is significant as an intact example of a 1930s continuous concrete, multi-span highway bridge, utilizing Hardy Cross's moment distribution theory, and for its assoc... More
Pamelia Creek Bridge, Spanning Pamelia Creek at Milepoint 62.78 on Nor...
Significance: The Pamelia Creek Bridge #06805 is located on the North Santiam Highway within the boundaries of the Willamette National Forest. The bridge was designed in 1933 by the Bureau of Public Roads and b... More
Larwood Bridge, Spanning Crabtree Creek, Fish Hatchery Road (CR 648), ...
Significance: Larwood Bridge is one of the best surviving examples of the standard Howe truss covered bridge designed by the Oregon State Highway Commission in early 20th century. It illustrates the open-sided... More
Salem Passenger Station & Freight Depot, 500 Thirteenth Street Southea...
Significance: It is significant as an execution of a standard Southern Pacific Railroad depot design in the early 1900s. The station is typical of depots of this era, but is architecturally unique within the Or... More
Salem Passenger Station & Freight Depot, 500 Thirteenth Street Southea...
Significance: It is significant as an execution of a standard Southern Pacific Railroad depot design in the early 1900s. The station is typical of depots of this era, but is architecturally unique within the Or... More
Historic Columbia River Highway, Mosier Twin Tunnels, East of Mosier, ...
Significance: The only set of highway tunnels with adits or windows in Oregon. One of the few examples of this type of tunnel in the United States. Survey number: HAER OR-36-T Building/structure dates: 1920 ... More
Historic Columbia River Highway, Mosier Twin Tunnels, East of Mosier, ...
Significance: The only set of highway tunnels with adits or windows in Oregon. One of the few examples of this type of tunnel in the United States. Survey number: HAER OR-36-T Building/structure dates: 1920 ... More
Historic Columbia River Highway, Mosier Twin Tunnels, East of Mosier, ...
Significance: The only set of highway tunnels with adits or windows in Oregon. One of the few examples of this type of tunnel in the United States. Survey number: HAER OR-36-T Building/structure dates: 1920 ... More
Historic Columbia River Highway, Mosier Twin Tunnels, East of Mosier, ...
Significance: The only set of highway tunnels with adits or windows in Oregon. One of the few examples of this type of tunnel in the United States. Survey number: HAER OR-36-T Building/structure dates: 1920 ... More
Lakeview Downtown Historic District, E, F & G Streets between Second S...
Significance: The district is locally significant as a commercial and social center in south central Oregon. The district is a reflection of Lakeview's growth and economic conditions during the first half of th... More
Lakeview Downtown Historic District, E, F & G Streets between Second S...
Significance: The district is locally significant as a commercial and social center in south central Oregon. The district is a reflection of Lakeview's growth and economic conditions during the first half of th... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Horsetail Falls Bridge, Spanning Hors...
Significance: One of two nearly identical reinforced-concrete girder trestles on the Historic Columbia River Highway and one of four extant structures on the route that have a distinctive cap and arch concrete ... More
Steel Bridge, Spanning Willamette River at State Route 99, Portland, M...
Significance: An early example of the Waddell-type vertical lift bridge, the Steel Bridge documents that, guided by Harrington, most features of the type achieved "standard" form by 1912. It also demonstrates ... More
McCord Creek Bridge, Spanning McCord Creek at Milepost 38.62 on Old Co...
Significance: The McCord Creek Bridge is associated with the Columbia River Highway, a National Historic Landmark. Built over a ten-year period (1913-1922), the Columbia River Highway is nationally significant ... More
Historic Columbia River Highway, Mosier Creek Bridge, Spanning Mosier ...
Survey number: HAER OR-36-U National Register of Historic Places NRIS Number: 83004168
Lewis & Clark Bridge, Spanning Lewis & Clark River at Milepoint 4.78, ...
Significance: It is Oregon's only remaining single-leaf bascule draw span built before WWII and is an early moveable span bridge designed by state bridge engineer Conde B. McCullough. The bridge is significant ... More
Lewis & Clark Bridge, Spanning Lewis & Clark River at Milepoint 4.78, ...
Significance: It is Oregon's only remaining single-leaf bascule draw span built before WWII and is an early moveable span bridge designed by state bridge engineer Conde B. McCullough. The bridge is significant ... More
Grave Creek Bridge, Spanning Grave Creek on Sunny Valley Loop Road, Su...
Significance: Achieves statewide significance as part of a thematic group of timber-constructed, covered bridges of Oregon, and it is the last remaining covered bridge in Josephine County. It is an intact examp... More
Grave Creek Bridge, Spanning Grave Creek on Sunny Valley Loop Road, Su...
Significance: Achieves statewide significance as part of a thematic group of timber-constructed, covered bridges of Oregon, and it is the last remaining covered bridge in Josephine County. It is an intact examp... More
Grave Creek Bridge, Spanning Grave Creek on Sunny Valley Loop Road, Su...
Significance: Achieves statewide significance as part of a thematic group of timber-constructed, covered bridges of Oregon, and it is the last remaining covered bridge in Josephine County. It is an intact examp... More
Grave Creek Bridge, Spanning Grave Creek on Sunny Valley Loop Road, Su...
Significance: Achieves statewide significance as part of a thematic group of timber-constructed, covered bridges of Oregon, and it is the last remaining covered bridge in Josephine County. It is an intact examp... More
Marion Creek Bridge, Spanning Marion Creek at Milepoint 66.42 on North...
Significance: The Marion Creek Bridge #06807 is located on the North Santiam Highway within the boundaries of the Willamette National Forest. The bridge was designed in 1933 by the Bureau of Public Roads and bu... More
Marion Creek Bridge, Spanning Marion Creek at Milepoint 66.42 on North...
Significance: The Marion Creek Bridge #06807 is located on the North Santiam Highway within the boundaries of the Willamette National Forest. The bridge was designed in 1933 by the Bureau of Public Roads and bu... More
Marion Creek Bridge, Spanning Marion Creek at Milepoint 66.42 on North...
Significance: The Marion Creek Bridge #06807 is located on the North Santiam Highway within the boundaries of the Willamette National Forest. The bridge was designed in 1933 by the Bureau of Public Roads and bu... More
Fisher School Covered Bridge, Crab Creek Road at Fiver Rivers Road, Fi...
Significance: It is located in the rugged foothills of Lincoln County near the former community of Fisher, and crosses Five Rivers, named for the five streams that make up the single stream the bridge spans. Th... More
Fisher School Covered Bridge, Crab Creek Road at Fiver Rivers Road, Fi...
Significance: It is located in the rugged foothills of Lincoln County near the former community of Fisher, and crosses Five Rivers, named for the five streams that make up the single stream the bridge spans. Th... More
Ten Mile Creek Bridge, Spanning Ten Mile Creek on Oregon Coast Highway...
Significance: The Ten Mile Creek Bridge is significant as one of the earliest example of reinforced concrete tied-arch bridge construction in the Pacific Northwest region. The bridge is also significant for its... More
Ten Mile Creek Bridge, Spanning Ten Mile Creek on Oregon Coast Highway...
Significance: The Ten Mile Creek Bridge is significant as one of the earliest example of reinforced concrete tied-arch bridge construction in the Pacific Northwest region. The bridge is also significant for its... More
Ten Mile Creek Bridge, Spanning Ten Mile Creek on Oregon Coast Highway...
Significance: The Ten Mile Creek Bridge is significant as one of the earliest example of reinforced concrete tied-arch bridge construction in the Pacific Northwest region. The bridge is also significant for its... More
Isthmus Slough Bridge, Spanning Isthmus Slough at Milepoint 0.2, Coos ...
Significance: The Isthmus Slough Bridge is significant as a good example of the bascule bridge type. This bridge is unique within the Oregon context at it is the only known bascule structure that utilizes a blo... More
Depoe Bay Bridge, Spanning Depoe Bay at Oregon Coast Highway (U.S.101)...
Significance: Depoe Bay Bridge was designed in 1926 by State Bridge Engineer, Conde B. McCullough. It was the first of thirteen reinforced deck and through arches that were built on the Oregon Coast Highway. ... More
Depoe Bay Bridge, Spanning Depoe Bay at Oregon Coast Highway (U.S.101)...
Significance: Depoe Bay Bridge was designed in 1926 by State Bridge Engineer, Conde B. McCullough. It was the first of thirteen reinforced deck and through arches that were built on the Oregon Coast Highway. ... More