The Oregon City Bridge, also known as the Arch Bridge, is a steel through arch bridge spanning the Willamette River between Oregon City and West Linn, Oregon, United States. Completed in 1922, it is listed on the National Register of Historic Places. It was built and is owned by the Oregon Department of Transportation (ODOT) as part of Oregon Route 43 and is the third-southernmost Willamette bridge in the Portland metropolitan area, after the Boone Bridge in Wilsonville and the Oregon 219 bridge near Newberg.
The Alsea Bay Bridge is a concrete arch bridge that spans the Alsea Bay on U.S. Route 101 (US 101) near Waldport, Oregon.
The Conde B. McCullough Memorial Bridge, is a cantilever bridge that spans the Coos Bay on U.S. Route 101 near North Bend, Oregon. When completed in 1936 it was named the North Bend Bridge. In 1947 it was renamed in honor of Conde B. McCullough who died May 5, 1946. This and 10 other major bridges on the Oregon Coast Highway were designed under his supervision.
The Yaquina Bay Bridge is an arch bridge that spans Yaquina Bay south of Newport, Oregon. It is one of the most recognizable of the U.S. Route 101 bridges designed by Conde McCullough and one of eleven major bridges on the Oregon Coast Highway designed by him. It superseded the last ferry crossing on the highway.
The Siuslaw River Bridge is a bascule bridge that spans the Siuslaw River on U.S. Route 101 in Florence, Oregon. It was designed by Conde McCullough, built by the Mercer-Fraser Company of Eureka, California, and funded by the Federal Emergency Administration of Public Works. It opened in 1936.
The Big Creek Bridge is a bowstring arch bridge that spans the Big Creek on U.S. Route 101 in Lane County, Oregon. It was designed by Conde McCullough and opened in 1931.
The Umpqua River Bridge is a swing-span bridge that spans the Umpqua River in Reedsport, Oregon. It consists of a central swing span flanked by two reinforced concrete arches on each end. The swing span was necessary to accommodate tall sailing vessels which were common on the Umpqua River. The final cost of the bridge was $510,500.
Conde Balcom McCullough was an American civil engineer who is primarily known for designing many of Oregon's coastal bridges on U.S. Route 101. The native of South Dakota worked for the Oregon Department of Transportation from 1919 to 1935 and 1937 until he died in 1946. McCullough also was a professor at Oregon State University.
The Bridal Veil Falls is a waterfall located on Bridal Veil Creek along the Columbia River Gorge in Multnomah County, Oregon, United States. The waterfall is accessible from the historic Columbia River Highway and Interstate 84. Spanning two tiers on basalt cliffs, it is the only waterfall which occurs below the historic Columbia Gorge Scenic Highway. The Bridal Veil Falls Bridge, built in 1914, crosses over the falls, and is listed on the National Register of Historic Places.
The Crooked River High Bridge is a steel arch bridge that spans the Crooked River gorge in Jefferson County, Oregon. The bridge was designed by Conde McCullough and was completed in 1926. Shortly after its completion, Oregon State Highway Division created the Peter Skene Ogden Park just to the south of the bridge.
The Lewis and Clark River Bridge is a bascule bridge that spans the Lewis and Clark River on U.S. Route 101 Business in Clatsop County, Oregon. It was designed by Conde McCullough and opened in 1925. It was built to replace an earlier bridge at the same location, a swing-span bridge constructed around 1910.
Cape Creek Bridge is an arch bridge that spans Cape Creek in Lane County, Oregon, United States. The bridge carries U.S. Route 101. Opened in 1932, it was designed by noted bridge engineer Conde McCullough and built of reinforced concrete by John K. Holt. The total length of the bridge is 619 feet (189 m), with a main span of 220 feet (67 m). The bridge resembles a Roman aqueduct, with a single parabolic arch that spans half its length. It was listed as Cape Creek Bridge No. 01113 on the National Register of Historic Places in 2005, as part of the C. B. McCullough Major Oregon Coast Highway Bridges MPS.
Wilson River Bridge, also known as Wilson River Bridge at Tillamook or Wilson River Bridge No. 01499, is a bridge near Tillamook, Oregon, United States. The 1931 bridge was designed by Conde McCullough in the Classical Revival and Art Deco styles. It covers a span of 180 feet (55 m) and brings coastal U.S. Route 101 (US 101) over the Wilson River.
Ten Mile Creek Bridge is a Conde McCullough-designed bridge near Yachats in Lane County in the U.S. state of Oregon. It was listed on the National Register of Historic Places in 2005.
The Old Youngs Bay Bridge is a bascule bridge across Youngs Bay in Astoria, Oregon completed in 1921. Conde McCullough was responsible for designing this bridge, his first for Oregon.
The Kettle Falls Bridges is the collective name for a pair of steel cantilever bridges carrying State Route 20/U.S. Route 395 and the Kettle Falls International Railway across the Columbia River at Kettle Falls, Washington. The south bridge carries motor vehicle traffic while the similar northern span is used for rail.
The Yale Bridge or Lewis River Bridge spans the Lewis River near Yale, Washington. It was built in 1932 by Cowlitz and Clark counties. The suspension bridge has a clear span of 300 feet (91 m), with a total length of 532 feet (162 m), replacing a previous steel truss bridge at the site. Construction of the Ariel Dam had created Lake Merwin with a water depth of 90 feet (27 m) at the site, requiring a new bridge that did not need to have support piers in the water. The road deck, stiffened by a steel Warren truss, is 50 feet (15 m) above the high water line of the reservoir.
The Depoe Bay Bridge is one of a series of significant bridges along the Oregon Coast Highway. The concrete arch bridge spans the mouth of Depoe Bay at milepost 127.61 with a 150-foot (46 m) main span, and a total length of 312 feet (95 m). The bridge's designer was Conde McCullough who designed all of the 1920s bridges on the highway. The original bridge, completed in 1927, was only 18 feet (5.5 m) wide from curb to curb with no sidewalks, and was widened in 1940 with a similar arched concrete bridge immediately adjacent to the original. The added structure is sympathetic to the original and is included in the National Register of Historic Places listing.
Rocky Creek Bridge No. 01089, also known as Ben Jones Bridge, is a concrete highway bridge spanning Rocky Creek along the Pacific Ocean coast of the U.S. state of Oregon. The bridge crosses a gorge near the creek's mouth, about 2 miles (3 km) south of Depoe Bay in Lincoln County. Built in 1927, the bridge originally carried U.S. Route 101 over the creek. After a stretch of the highway was relocated to make it straighter, the abandoned piece of the old highway became Otter Crest Loop Road, a bypass west of the new highway.
The Hassayampa Bridge is a bridge spanning the Hassayampa River in Hassayampa, Arizona, located in Maricopa County. The bridge was completed in 1929 and was listed on the National Register of Historic Places in 1988. The bridge was scheduled for demolition in 1983.
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