US 99

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PACIFIC 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 1911
Concrete arch bridge over Ashland Creek on OR 99 in Ashland
Open to traffic

Canyon Creek Bridge (Douglas County, Oregon)
Built 1921
Stringer bridge over Canyon Creek on Main Street (Old US 99)
Open to traffic

Caveman Bridge (1931) (Josephine County, Oregon)
Built 1931
Rainbow arch bridge over Rogue River on Southbound US 199 in Grants Pass
Open 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 1940
Concrete arch bridge over Charlie Creek on Lake Shore Drive
Open to traffic

Chehulpum Creek Bridge (Marion County, Oregon)
Built 1919, Widened 1929, Partial rail replacement 2012
Slab bridge over Chehulpum Creek on OR-164 (Former US-99)
Open to traffic

Coweeman River Bridge (Cowlitz County, Washington)
Built 1947
Through truss bridge over Coweeman River on Kelso Drive in Kelso
Open to traffic

Deer Creek Bridge (Tehama County, California)
Built 1921; rehabilitated 1953; replaced 2002
Lost concrete arch bridge over Deer Creek on CA 99
No longer exists

Dillard Covered Bridge 37-10-32 #2x (Douglas County, Oregon)
Built 1918, Replaced 1939
Lost Howe through truss bridge over South Umpqua River on Pacific Highway
Replaced by the 1939 South Umpqua River Bridge

Dollarhide Bridge (Jackson County, Oregon)
Built 1914
Concrete deck girder bridge over Central Oregon & Pacific Railroad on OR 273
Open to traffic

Doney Creek Bridge (Shasta County, California)
Built 1927, Deck modified for the construction of Shasta Dam circa 1940
Concrete arch bridge over Doney Creek on Lakeshore Drive
Open to traffic

Dr. John McLoughlin Memorial Bridge (Clackamas County, Oregon)
Built 1933
Steel tied arch bridge over Clackamas River on OR 99E in Gladstone
Open to traffic

Dry Gulch Bridge (Siskiyou County, California)
Built 1929
Concrete arch bridge over Dry Gulch on CA 263
Open to traffic

Ebey Slough Bridge (Snohomish County, Washington)
Built 1927; replaced with fixed UCEB (ugly concrete eyesore bridge) in 2012
Lost swing bridge over Ebey Slough on WA 529
Replaced by a new bridge

Foots Creek Bridge (Jackson County, Oregon)
Built 1928
Concrete 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 1947
Concrete arch bridge over Rogue River on OR 99 at Gold Hill
Open to traffic

Grave Creek Covered Bridge 37-17-01 (Josephine County, Oregon)
Built 1920; rehabilitated 2001
Covered bridge over Grave Creek on Sunny Valley Loop
Open 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 Alignment
Open to pedestrians

Harrisburg Bridge (Linn County, Oregon)
Built 1925; rehabilitated 1976
Parker through truss bridge over Willamette River on OR 99E in Harrisburg
Open to traffic

Hill Creek Bridge (Cowlitz County, Washington)
Built 1923
Concrete 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 2017
Spandrel braced cantilever Deck truss bridge over Sacramento River on I-5
Demolished

I-5 - Columbia River Bridge (NB) (Multnomah County, Oregon)
Built 1917; Main span modification 1958
Vertical lift Parker through truss bridge over the Columbia River on northbound I-5 between Vancouver and Portland
Open to traffic

I-5 - Ebey Slough Bridge (SB) (Snohomish County, Washington)
Built 1954; rehabilitated 1968
Steel stringer bridge over Ebey Slough BNSF RR WA 529 on Southbound I-5
Open to traffic

I-5 - North Fork Lewis River Bridge (SB) (Clark County, Washington)
Built 1940
Coninuous Warren through truss bridge over North Fork Lewis River on I-5 southbound
Open to traffic

I-5 - Pit River Bridge (Shasta County, California)
Built 1941, rehabilitated 2008
Double deck, deck truss bridge over Shasta Lake (Pit River Arm) on I-5 & Union Pacific Railroad
Open to traffic

I-5 - Santiam River Bridge (Marion County, Oregon)
SB built 1946, NB built 1958, NB replaced 1991, SB replaced 1995
Lost pair of steel arch bridges over Santiam River on Interstate 5
Replaced by new bridge

Jacob Conser Bridge (Marion County, Oregon)
Built 1933
Rainbow arch bridge over Santiam River on HWY 164
Open to traffic

Klamath River Bridge (Siskiyou County, California)
Built 1931
Concrete tee beam bridge over Klamath River on State Route 263
Open to traffic

Klineline Bridge (Clark County, Washington)
Built 1928; rehabilitated 1956, Replaced 2008
Concrete tee beam bridge over Salmon Creek on NE HWY 99 in Salmon Creek
Replaced by a new bridge in 2008

LaCenter Bridge (Clark County, Washington)
Built 1923, Replaced by pre-cast girder bridge 2001
Lost concrete arch bridge over East Fork Lewis River on La Center Road in LaCenter
Replaced by new bridge

Luckiamute River Bridge (Polk County, Oregon)
Built 1928
Polygonal 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 2008-2009
Stringer bridge over UPRR & Division Street on Oregon 99E in Portland
Replaced by a new bridge

Marys River Bridge (Benton County, Oregon)
Built 1933
Parker through truss bridge over Marys River on Northbound OR 99W in Corvallis
Open to traffic

Meeker Drive Bridge (Cowlitz County, Washington)
Built 1952
Through truss bridge over Kalama River on Meeker Drive
Open to traffic

Mill Creek Bridge (Tehama County, California)
Built ca. 1920; rehabilitated 1953; replaced 2004
Lost three-span concrete arch bridge over Mill Creek on CA 99
No longer exists

Miller Creek Bridge (Marion County, Oregon)
Built 1920, Widened1982
Slab bridge over Miller Creek on Sunnyside Road (Old US-99)
Open to traffic

Miller's Gulch Bridge (Jackson County, Oregon)
Built 1920, Widened 1948
Concrete 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 1963
Warren deck truss bridge over Molalla River on Northbound OR-99 E
Open to traffic

Myrtle Creek Bridge (Douglas County, Oregon)
Built 1930
Stringer bridge over Myrtle Creek on OR-99 (Old Pacific Highway) in Myrtle Creek
Open to traffic

Myrtle Creek Bridge (Douglas County, Oregon)
Built 1922, Rehabilitation & Widening 2007
Concrete arch bridge over South Umpqua River on CR 386 in Myrtle Creek
Open to traffic

North Fork Ash Creek Bridge (Polk County, Oregon)
Built 1922
Slab bridge over North Fork Ash Creek on Riddell Road
Open to traffic

North Yamhill River Bridge (Yamhill County, Oregon)
Built 1921
Warren deck truss bridge over North Yamhill River on Southbound OR 99W
Open to traffic

Oakland Bridge (Douglas County, Oregon)
Built 1925
Deck truss bridge over Calapooya Creek on Shady Highway in Oakland
Open to traffic

Oregon Electric Railway Overcrossing (Multnomah County, Oregon)
Built 1935
Concrete tee beam bridge over SW Multnomah Blvd on OR-99W
Open to traffic

Overflow Channel Bridge (Thurston County, Washington)
Built 1936
Bridge over Overflow Channel on Old US 99
Open to traffic

Pickett Bridge (Whatcom County, Washington)
Built 1920; rehabilitated 2002
Concrete arch bridge over Whatcom Creek on Prospect Street in Bellingham
Open to traffic

Pioneer Bridge (Siskiyou County, California)
Built 1931
Deck truss bridge over Shasta River on CA 263
Open to traffic

PNWR - St. Joseph Undercrossing (Yamhill County, Oregon)
Built 1921, Lengthened and raised 1953.
Steel stringer bridge over OR 99W on Portland & Western Railroad
Open to traffic

Pudding River Bridge (Clackamas County, Oregon)
Built 1947
Steel tied arch bridge over Pudding River on OR-99E
Open to traffic

Puyallup Avenue Bridge (Pierce County, Washington)
Built 1925
Through truss bridge over Puyallup River on Puyallup Avenue in Tacoma
Replaced by a new bridge

Puyallup Avenue Bridge (Pierce County, Washington)
Built 1925
Warren through truss bridge over railroad tracks on Puyallup Avenue in Tacoma
Open to traffic

Puyallup Avenue Overpass (Pierce County, Washington)
Built 1925
Through truss bridge over railroad tracks on Puyallup Avenue in Tacoma
Open to traffic

Rock Point Bridge (Jackson County, Oregon)
Built 1919, Rehabilitated 2010
Concrete arch bridge over Rogue River on OR 99
Open to traffic

Sacramento River Bridge (Siskiyou County, California)
Built 1955; rehabilitated 1983
Concrete arch bridge over Sacramento River on I-5 in Dunsmuir
Open to traffic

Samish River Bridge (Skagit County, Washington)
Built 1934
Pratt through truss bridge over Samish River on Old US 99 between Burlington and Alger
Open to traffic

San Joaquin River Bridge (Madera County, California)
Built 1928; rehabilitated 1987
Warren Deck truss bridge over San Joaquin River on CA 99 in Fresno
Open to traffic

Sardine Creek Bridge (Jackson County, Oregon)
Built 1938
Concrete deck girder bridge over Sardine Creek on OR 99
Open to traffic

Shasta River Bridge (Siskiyou County, California)
Built 1931
Concrete arch bridge over Shasta River on CA 263
Open to traffic

Shasta River Bridge (Siskiyou County, California)
Built 1928
Concrete tee beam bridge over Shasta River on State Route 263
Open to traffic

Slate Creek Bridge (Shasta County, California)
Built 1927
Concrete tee beam bridge over Slate Creek on La Moine Road (Old CA 99)
Open to traffic

South Umpqua River Bridge (Douglas County, Oregon)
Replaced 2000
Lost continuous Warren through truss bridge over South Umpqua River on CR 387 in Dillard
Built in 1939, Replaced by new bridge in 2000

Stanislaus River Bridge (NB) (San Joaquin County, California)
Built 1948; replaced 1970
Concrete arch bridge over Stanislaus River on CA 99
Open

Stanislaus River Bridge (SB) (San Joaquin County, California)
Built 1908; rehabilitated 1967
Concrete arch bridge over Stanislaus River on southbound CA 99
Open to traffic

Steinman Bridge (Jackson County, Oregon)
Built 1914
Concrete 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 1952
Concrete Luten arch bridge over Stony Creek on CA 99W
Open to traffic

Thomes Creek Bridge (Tehama County, California)
Built 1920; rehabilitated 1950
Concrete arch bridge over Thomes Creek on Old US 99W
Open to traffic

Toutle River Bridge (Cowlitz County, Washington)
Built 1935
Through truss bridge over Toutle River on Old Pacific Highway N
Open to traffic

Tualatin River Bridge (Washington County, Oregon)
Built 1929
Warren deck truss bridge over Tualatin River on OR 99W SB in Tualatin
Open to traffic

Union Slough Bridge (Snohomish County, Washington)
Built 1954
Concrete tee beam bridge over Union Slough on WA 529
Open to traffic

Union Slough Bridge (Snohomish County, Washington)
Built 1927
Concrete tee beam bridge over Union Slough on WA 529
Open to traffic

WA529 Steamboat Slough Bridge (NB) (Snohomish County, Washington)
Built 1954
Warren swing bridge over Steamboat Slough on WA 529
Open to traffic

WA529 Steamboat Slough Bridge (SB) (Snohomish County, Washington)
Built 1927; rehabilitated 2003
Swing through truss bridge over Steamboat Slough on WA 529 in Everett
Open to traffic

Whiteson Bridge (Yamhill County, Oregon)
Built 1938, Replaced 2002
Lost Steel stringer bridge over South Yamhill River on OR 99W
Replaced by pre-cast girder bridge in 2002

Whiteson Dip Bridge (Yamhill County, Oregon)
Built 1956
Concrete deck girder bridge over Whiteson Dip on OR-99W
Open to traffic

Winchester Bridge (1923) (Douglas County, Oregon)
Built 1923, Rehabilitated 2008
Concrete arch bridge over North Umpqua River on OR 99
Open to Traffic

Winston Bridge (Douglas County, Oregon)
Built 1934
Steel through arch bridge over South Umpqua River on Eastbound OR 42
Open to traffic

Wolf Creek Bridge (Josephine County, Oregon)
Built 1921
Stringer bridge over Wolf Creek on Edgewood Road (Old US-99) in Wolf Creek
Open to traffic

Yolo Causeway Bridge (Yolo County, California)
Built 1916; Replaced 1962
Deck plate girder bascule bridge over Sacramento River on Lincoln Highway
replaced