US 99
View Exhibit mapPACIFIC HIGHWAY
US-99 served as the main north-south highway along the west coast of the United States from the inception of the US Highway System in 1926 until 1964 when the phased decommissioning of the highway began due to the construction of Interstate 5. The highway was completely decommissioned as a federal highway in 1968. The states of California, Oregon and Washington in which the highway passed through have all designated portions of the original US-99 as State Route 99.
The Pacific Highway has one of the richest collection of historic bridges that were designed by state highway departments in the early 20th century as the highway traversed a variety of terrains and metropolitan areas.
Ashland Creek Bridge (Jackson County, Oregon)
Built 1911Concrete arch bridge over Ashland Creek on OR 99 in AshlandOpen to traffic
Canyon Creek Bridge (Douglas County, Oregon)
Built 1921Stringer bridge over Canyon Creek on Main Street (Old US 99)Open to traffic
Caveman Bridge (1931) (Josephine County, Oregon)
Built 1931Rainbow arch bridge over Rogue River on Southbound US 199 in Grants PassOpen to traffic
Cesar Chavez Avenue Overpass (Los Angeles County, California)
Bridge over San Bernadino Freeway (Interstate 10) on Cesar Chavez Ave. in Boyle Heights, Los Angeles,Open to traffic
Charlie Creek Bridge (Shasta County, California)
Built 1925, Deck modified for the construction of Shasta Dam circa 1940Concrete arch bridge over Charlie Creek on Lake Shore DriveOpen to traffic
Chehulpum Creek Bridge (Marion County, Oregon)
Built 1919, Widened 1929, Partial rail replacement 2012Slab bridge over Chehulpum Creek on OR-164 (Former US-99)Open to traffic
Coweeman River Bridge (Cowlitz County, Washington)
Built 1947Through truss bridge over Coweeman River on Kelso Drive in KelsoOpen to traffic
Deer Creek Bridge (Tehama County, California)
Built 1921; rehabilitated 1953; replaced 2002Lost concrete arch bridge over Deer Creek on CA 99No longer exists
Dillard Covered Bridge 37-10-32 #2x (Douglas County, Oregon)
Built 1918, Replaced 1939Lost Howe through truss bridge over South Umpqua River on Pacific HighwayReplaced by the 1939 South Umpqua River Bridge
Dollarhide Bridge (Jackson County, Oregon)
Built 1914Concrete deck girder bridge over Central Oregon & Pacific Railroad on OR 273Open to traffic
Doney Creek Bridge (Shasta County, California)
Built 1927, Deck modified for the construction of Shasta Dam circa 1940Concrete arch bridge over Doney Creek on Lakeshore DriveOpen to traffic
Dry Gulch Bridge (Siskiyou County, California)
Built 1929Concrete arch bridge over Dry Gulch on CA 263Open to traffic
Ebey Slough Bridge (Snohomish County, Washington)
Built 1927; replaced with fixed UCEB (ugly concrete eyesore bridge) in 2012Lost swing bridge over Ebey Slough on WA 529Replaced by a new bridge
Foots Creek Bridge (Jackson County, Oregon)
Built 1928Concrete tee beam bridge over Foots Creek on OR 99 (Old U.S. 99)Open to traffic
Gold Hill Bridge (Jackson County, Oregon)
Built 1927; rehabilitated 1947Concrete arch bridge over Rogue River on OR 99 at Gold HillOpen to traffic
Harlan D. Miller Bridge (Shasta County, California)
Built in 1927 as part of the Pacific Highway (U.S. 99) abandoned when I-5 was constructed through the area.Open-spandrel arch bridge over Dog Creek on abandoned U.S. 99 AlignmentOpen to pedestrians
Harrisburg Bridge (Linn County, Oregon)
Built 1925; rehabilitated 1976Parker through truss bridge over Willamette River on OR 99E in HarrisburgOpen to traffic
Hill Creek Bridge (Cowlitz County, Washington)
Built 1923Concrete stringer bridge over Hill Creek on Barnes Drive (Old Pacific Highway)Open to traffic
I-5 - Antlers Bridge (Shasta County, California)
Built 1941; rehabilitated 1967; Demolished 2017Spandrel braced cantilever Deck truss bridge over Sacramento River on I-5Demolished
I-5 - Columbia River Bridge (NB) (Multnomah County, Oregon)
Built 1917; Main span modification 1958Vertical lift Parker through truss bridge over the Columbia River on northbound I-5 between Vancouver and PortlandOpen to traffic
I-5 - Ebey Slough Bridge (SB) (Snohomish County, Washington)
Built 1954; rehabilitated 1968Steel stringer bridge over Ebey Slough BNSF RR WA 529 on Southbound I-5Open to traffic
I-5 - Pit River Bridge (Shasta County, California)
Built 1941, rehabilitated 2008Double deck, deck truss bridge over Shasta Lake (Pit River Arm) on I-5 & Union Pacific RailroadOpen to traffic
I-5 - Santiam River Bridge (Marion County, Oregon)
SB built 1946, NB built 1958, NB replaced 1991, SB replaced 1995Lost pair of steel arch bridges over Santiam River on Interstate 5Replaced by new bridge
Jacob Conser Bridge (Marion County, Oregon)
Built 1933Rainbow arch bridge over Santiam River on HWY 164Open to traffic
Klamath River Bridge (Siskiyou County, California)
Built 1931Concrete tee beam bridge over Klamath River on State Route 263Open to traffic
Klineline Bridge (Clark County, Washington)
Built 1928; rehabilitated 1956, Replaced 2008Concrete tee beam bridge over Salmon Creek on NE HWY 99 in Salmon CreekReplaced by a new bridge in 2008
LaCenter Bridge (Clark County, Washington)
Built 1923, Replaced by pre-cast girder bridge 2001Lost concrete arch bridge over East Fork Lewis River on La Center Road in LaCenterReplaced by new bridge
Luckiamute River Bridge (Polk County, Oregon)
Built 1928Polygonal Warren truss bridge over Luckiamute River on Helmick Road (Old US-99W)Open to traffic
Martin Luther King Jr. Blvd Viaduct (Multnomah County, Oregon)
Built 1937, Replaced 2008-2009Stringer bridge over UPRR & Division Street on Oregon 99E in PortlandReplaced by a new bridge
Marys River Bridge (Benton County, Oregon)
Built 1933Parker through truss bridge over Marys River on Northbound OR 99W in CorvallisOpen to traffic
Meeker Drive Bridge (Cowlitz County, Washington)
Built 1952Through truss bridge over Kalama River on Meeker DriveOpen to traffic
Mill Creek Bridge (Tehama County, California)
Built ca. 1920; rehabilitated 1953; replaced 2004Lost three-span concrete arch bridge over Mill Creek on CA 99No longer exists
Miller Creek Bridge (Marion County, Oregon)
Built 1920, Widened1982Slab bridge over Miller Creek on Sunnyside Road (Old US-99)Open to traffic
Miller's Gulch Bridge (Jackson County, Oregon)
Built 1920, Widened 1948Concrete tee beam bridge over Miller's Gulch on OR 99 (Old U.S. 99)Open to traffic
Molalla River Bridge (Clackamas County, Oregon)
Built 1936, Made One-Way in 1963Warren deck truss bridge over Molalla River on Northbound OR-99 EOpen to traffic
Myrtle Creek Bridge (Douglas County, Oregon)
Built 1930Stringer bridge over Myrtle Creek on OR-99 (Old Pacific Highway) in Myrtle CreekOpen to traffic
Myrtle Creek Bridge (Douglas County, Oregon)
Built 1922, Rehabilitation & Widening 2007Concrete arch bridge over South Umpqua River on CR 386 in Myrtle CreekOpen to traffic
North Yamhill River Bridge (Yamhill County, Oregon)
Built 1921Warren deck truss bridge over North Yamhill River on Southbound OR 99WOpen to traffic
Oakland Bridge (Douglas County, Oregon)
Built 1925Deck truss bridge over Calapooya Creek on Shady Highway in OaklandOpen to traffic
Overflow Channel Bridge (Thurston County, Washington)
Built 1936Bridge over Overflow Channel on Old US 99Open to traffic
Pickett Bridge (Whatcom County, Washington)
Built 1920; rehabilitated 2002Concrete arch bridge over Whatcom Creek on Prospect Street in BellinghamOpen to traffic
Pioneer Bridge (Siskiyou County, California)
Built 1931Deck truss bridge over Shasta River on CA 263Open to traffic
PNWR - St. Joseph Undercrossing (Yamhill County, Oregon)
Built 1921, Lengthened and raised 1953.Steel stringer bridge over OR 99W on Portland & Western RailroadOpen to traffic
Pudding River Bridge (Clackamas County, Oregon)
Built 1947Steel tied arch bridge over Pudding River on OR-99EOpen to traffic
Puyallup Avenue Bridge (Pierce County, Washington)
Built 1925Through truss bridge over Puyallup River on Puyallup Avenue in TacomaReplaced by a new bridge
Puyallup Avenue Bridge (Pierce County, Washington)
Built 1925Warren through truss bridge over railroad tracks on Puyallup Avenue in TacomaOpen to traffic
Puyallup Avenue Overpass (Pierce County, Washington)
Built 1925Through truss bridge over railroad tracks on Puyallup Avenue in TacomaOpen to traffic
Rock Point Bridge (Jackson County, Oregon)
Built 1919, Rehabilitated 2010Concrete arch bridge over Rogue River on OR 99Open to traffic
Sacramento River Bridge (Siskiyou County, California)
Built 1955; rehabilitated 1983Concrete arch bridge over Sacramento River on I-5 in DunsmuirOpen to traffic
Samish River Bridge (Skagit County, Washington)
Built 1934Pratt through truss bridge over Samish River on Old US 99 between Burlington and AlgerOpen to traffic
San Joaquin River Bridge (Madera County, California)
Built 1928; rehabilitated 1987Warren Deck truss bridge over San Joaquin River on CA 99 in FresnoOpen to traffic
Sardine Creek Bridge (Jackson County, Oregon)
Built 1938Concrete deck girder bridge over Sardine Creek on OR 99Open to traffic
Shasta River Bridge (Siskiyou County, California)
Built 1931Concrete arch bridge over Shasta River on CA 263Open to traffic
Shasta River Bridge (Siskiyou County, California)
Built 1928Concrete tee beam bridge over Shasta River on State Route 263Open to traffic
Slate Creek Bridge (Shasta County, California)
Built 1927Concrete tee beam bridge over Slate Creek on La Moine Road (Old CA 99)Open to traffic
South Umpqua River Bridge (Douglas County, Oregon)
Replaced 2000Lost continuous Warren through truss bridge over South Umpqua River on CR 387 in DillardBuilt in 1939, Replaced by new bridge in 2000
Stanislaus River Bridge (NB) (San Joaquin County, California)
Built 1948; replaced 1970Concrete arch bridge over Stanislaus River on CA 99Open
Stanislaus River Bridge (SB) (San Joaquin County, California)
Built 1908; rehabilitated 1967Concrete arch bridge over Stanislaus River on southbound CA 99Open to traffic
Steinman Bridge (Jackson County, Oregon)
Built 1914Concrete deck girder bridge over OR- 273 (Old Siskiyou Highway) & Central Oregon and Pacific Railroad on OR-273 Old Siskiyou Highway (Old Hwy 99)Open to traffic
Stony Creek Bridge (Glenn County, California)
Built 1913; rehabilitated 1952Concrete Luten arch bridge over Stony Creek on CA 99WOpen to traffic
Thomes Creek Bridge (Tehama County, California)
Built 1920; rehabilitated 1950Concrete arch bridge over Thomes Creek on Old US 99WOpen to traffic
Toutle River Bridge (Cowlitz County, Washington)
Built 1935Through truss bridge over Toutle River on Old Pacific Highway NOpen to traffic
Tualatin River Bridge (Washington County, Oregon)
Built 1929Warren deck truss bridge over Tualatin River on OR 99W SB in TualatinOpen to traffic
Union Slough Bridge (Snohomish County, Washington)
Built 1954Concrete tee beam bridge over Union Slough on WA 529Open to traffic
Union Slough Bridge (Snohomish County, Washington)
Built 1927Concrete tee beam bridge over Union Slough on WA 529Open to traffic
WA529 Steamboat Slough Bridge (SB) (Snohomish County, Washington)
Built 1927; rehabilitated 2003Swing through truss bridge over Steamboat Slough on WA 529 in EverettOpen to traffic
Whiteson Bridge (Yamhill County, Oregon)
Built 1938, Replaced 2002Lost Steel stringer bridge over South Yamhill River on OR 99WReplaced by pre-cast girder bridge in 2002
Whiteson Dip Bridge (Yamhill County, Oregon)
Built 1956Concrete deck girder bridge over Whiteson Dip on OR-99WOpen to traffic
Winchester Bridge (1923) (Douglas County, Oregon)
Built 1923, Rehabilitated 2008Concrete arch bridge over North Umpqua River on OR 99Open to Traffic
Winston Bridge (Douglas County, Oregon)
Built 1934Steel through arch bridge over South Umpqua River on Eastbound OR 42Open to traffic
Wolf Creek Bridge (Josephine County, Oregon)
Built 1921Stringer bridge over Wolf Creek on Edgewood Road (Old US-99) in Wolf CreekOpen to traffic
Yolo Causeway Bridge (Yolo County, California)
Built 1916; Replaced 1962Deck plate girder bascule bridge over Sacramento River on Lincoln Highwayreplaced