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Northern Pacific Railway

Reporting mark: NP
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Cross Kirkland Corridor - Kirkland Way Overpass (King County, Washington)
Built 1965
Slab bridge over Kirkland Way on Cross Kirkland Corridor
Open to pedestrians only

CSP - Bridge 1 (Nez Perce County, Idaho)
Timber stringer bridge over Lapwai Creek on Camas Prairie Railroad
Intact but closed to all traffic

CSP - Bridge 12 (Nez Perce County, Idaho)
Built 1908
Bridge over Lapwai Creek on Camas Prairie Railroad
Intact but closed to all traffic

CSP - Bridge 19 (Lewis County, Idaho)
Built 1959
Deck plate girder bridge over Lapwai Creek and US 95 on Camas Prairie RR
Derelict/abandoned, open to highway traffic

CSP - Bridge 20-1 (Lewis County, Idaho)
Built 1908
Abandoned timber stringer bridge over Unnamed canyon on Camas Prairie Railroad
Derelict/abandoned

CSP - Bridge 20-2 (Lewis County, Idaho)
Built 1908
Abandoned timber stringer bridge over Unnamed canyon on Camas Prairie Railroad
Derelict/abandoned

CSP - Bridge 21 (Lewis County, Idaho)
Built 1908
Abandoned timber stringer bridge over Unnamed canyon on Camas Prairie Railroad
Derelict/abandoned

CSP - Bridge 21-2 (Lewis County, Idaho)
Built 1908
Abandoned timber stringer bridge over Unnamed canyon on Camas Prairie Railroad
Derelict/abandoned

CSP - Bridge 21-3 (Lewis County, Idaho)
Built 1908; destroyed by wildfire 2011
Lost Timber stringer bridge over Unnamed canyon on Camas Prairie Railroad
Destroyed by fire. As of 2021 one rail still spans the canyon.

CSP - Bridge 22-1 (Nez Perce County, Idaho)
Built 1908
Abandoned timber stringer bridge over Unnamed canyon on Camas Prairie Railroad
Derelict/abandoned

CSP - Bridge 22-2 (Nez Perce County, Idaho)
Built 1908
Abandoned timber stringer bridge over Unnamed canyon on Camas Prairie Railroad
Derelict/abandoned

CSP - Bridge 22-3 (Nez Perce County, Idaho)
Built 1908
Abandoned timber stringer bridge over Unnamed canyon on Camas Prairie Railroad
Derelict/abandoned

CSP - Bridge 22-4 (Nez Perce County, Idaho)
Built 1908
Abandoned timber stringer bridge over Unnamed canyon on Camas Prairie Railroad
Derelict/abandoned

CSP - Bridge 23 (Nez Perce County, Idaho)
Built 1908
Abandoned timber stringer bridge over Unnamed canyon on Camas Prairie Railroad
Derelict/abandoned

CSP - Bridge 23-1 (Nez Perce County, Idaho)
Built 1908
Abandoned timber stringer bridge over Unnamed canyon on Camas Prairie Railroad
Derelict/abandoned

CSP - Bridge 23-2 (Nez Perce County, Idaho)
Built 1908
Abandoned timber stringer bridge over Unnamed canyon on Camas Prairie Railroad
Derelict/abandoned

CSP - Bridge 30-1 (Lewis County, Idaho)
Built 1908
Abandoned timber stringer bridge over Coldspring Creek on Camas Prairie Railroad
Derelict/abandoned

CSP - Bridge 33 (Lewis County, Idaho)
Built 1908
Abandoned timber stringer bridge over Patton Road on Camas Prairie Railroad
Derelict/abandoned

CSP - Bridge 35 (Lewis County, Idaho)
Built 1908; removed 2020
Lost Timber stringer bridge over Lauer Road on Camas Prairie Railroad
Removed but not replaced

CSP - Bridge 36 (Lewis County, Idaho)
Built 1908; removed 2020
Lost Timber stringer bridge over Brown Road on Camas Prairie Railroad
Removed but not replaced

CSP - Bridge 37 (Lewis County, Idaho)
Abandoned timber stringer bridge over Evergreen Road on Camas Prairie Railroad
Derelict/abandoned

CSP - Bridge 39 (Idaho County, Idaho)
Built 1908
Abandoned timber stringer bridge over Unnamed canyon on Camas Prairie Railroad
Derelict/abandoned

CSP - Bridge 42 (Idaho County, Idaho)
Abandoned stringer bridge over Main Street on Camas Prairie Railroad
Derelict/abandoned

CSP - Bridge 43 (Idaho County, Idaho)
Built 1908
Abandoned timber stringer bridge over Private driveway on Camas Prairie Railroad
Derelict/abandoned

CSP - Bridge 44 (Idaho County, Idaho)
Built 1908
Abandoned timber stringer bridge over Unnamed canyon on Camas Prairie Railroad
Derelict/abandoned

CSP - Bridge 46 (Idaho County, Idaho)
Built 1908
Abandoned timber stringer bridge over Unnamed canyon on Camas Prairie Railroad
Derelict/abandoned

CSP - Bridge 46-1 (Idaho County, Idaho)
Built 1908
Abandoned timber stringer bridge over Reservation Road on Camas Prairie Railroad
Derelict/abandoned

CSP - Bridge 47 (Idaho County, Idaho)
Built 1908
Abandoned timber stringer bridge over Old Ferdinand Road on Camas Prairie Railroad
Derelict/abandoned

CSP - Bridge 48 (Idaho County, Idaho)
Built 1908
Abandoned timber stringer bridge over Unnamed canyon on Camas Prairie Railroad
Derelict/abandoned

CSP - Bridge 5 (Nez Perce County, Idaho)
Timber stringer bridge over Lapwai Creek on Camas Prairie Railroad
Intact but closed to all traffic

CSP - Bridge 51 (Idaho County, Idaho)
Built 1908
Abandoned culvert bridge over Unnamed creek on Camas Prairie Railroad
Derelict/abandoned

CSP - Bridge 52 (Idaho County, Idaho)
Built 1908
Lost Timber stringer bridge over Unnamed creek on Camas Prairie Railroad
Removed but not replaced

CSP - Bridge 58 (Idaho County, Idaho)
Built 1908
Abandoned timber stringer bridge over Fenn Road on Camas Prairie Railroad
Derelict/abandoned

CSP - Bridge 6 (Nez Perce County, Idaho)
Timber stringer bridge over Lapwai Creek on Camas Prairie Railroad
Intact but closed to all traffic

CSP - Bridge 9 (Nez Perce County, Idaho)
Timber stringer bridge over Lapwai Creek on Camas Prairie Railroad
Intact but closed to all traffic

CSP - Half Moon Trestle (Lewis County, Idaho)
Built 1907, abandoned 2000
Timber stringer bridge on Railroad
Intact but closed to all traffic

CSP - Horseshoe Tunnel (Lewis County, Idaho)
Built 1908
Abandoned tunnel on Camas Prairie Railroad
Derelict/abandoned

CSP - Lawyers Canyon Viaduct (Lewis County, Idaho)
Built 1908, abandoned 2000
Deck plate girder bridge over Lawyers Canyon on Railroad
Intact but closed to all traffic

CSP - Old Highway 95 Trestle (Idaho County, Idaho)
Built 1923; Girder added 1931
Deck plate girder bridge over Old Highway 95 on Camas Prairie Railnet
Derelict/abandoned

CSP - Tunnel 3 (Lewis County, Idaho)
Built 1908
Abandoned tunnel on Camas Prairie Railroad
Derelict/abandoned

CSP - Tunnel 4 (Nez Perce County, Idaho)
Built 1908
Abandoned tunnel on Camas Prairie Railroad
Derelict/abandoned

CSP - Tunnel 5 (Nez Perce County, Idaho)
Built 1908
Abandoned tunnel on Camas Prairie Railroad
Derelict/abandoned

CSP - Tunnel 6 (Nez Perce County, Idaho)
Built 1908
Abandoned bridge on Camas Prairie Railroad
Derelict/abandoned

CSP - Tunnel 7 (Nez Perce County, Idaho)
Built 1908
Abandoned tunnel on Camas Prairie Railroad
Derelict/abandoned

CSP - US 95 Bridge (Lewis County, Idaho)
Built 1954 and 1959
Deck plate girder bridge over US 95 on Camas Prairie RR
Derelict/abandoned, open to highway traffic

CSPR - Potlatch River Bridge (Nez Perce County, Idaho)
Built 1927, I-Beam added 1950
Deck plate girder bridge over Potlatch River on Camas Prairie Railnet
Open to traffic

CWRR - Yakima River Bridge (Yakima County, Washington)
Built 1924 with two secondhand 1891 spans, third span added 1945; Nearly destroyed in the flood of 1964 and placed on new piers.
Pratt through truss bridge over Yakima River on Central Washington Railroad
Open to traffic

CWRR - Yakima River Bridge (Gibbon) (Benton County, Washington)
Built 1941, Approaches rebuilt 1961 and 1965; Burned September 8th, 2020
Deck plate girder bridge over Yakima River on Central Washington Railroad
Open to traffic

DWP - West Duluth Viaduct (St. Louis County, Minnesota)
Lost Pony/through plate girder bridge over 59th Avenue, 58th Avenue, 57th Avenue, 56th Avenue, Central Avenue, Grand Avenue, & Northern Pacific Railway on Duluth, Winnipeg & Pacific Railway
Removed

First Bismarck Railroad Bridge (Burleigh County, North Dakota)
Built in 1882 under the direction of George Morison; superstructure replaced 1905
Lost through and deck truss bridge over the Missouri River carrying the Northern Pacific Railway in Bismarck
Orginal Whipple truss spans replaced with through Warren truss spans, reusing the original piers

Foothills Trail - Carbon River Bridge (Pierce County, Washington)
Built 1904
Pratt through truss bridge over Carbon River on Foothills Trail
Open to pedestrians only

Foothills Trail - Puyallup River Bridge (Pierce County, Washington)
Built 1905
Pratt through truss bridge over Puyallup River on Foothills Trail
Open to pedestrians only

Foothills Trail - South Prairie Creek Bridge (Pierce County, Washington)
Built 1916
Pony/through plate girder bridge over South Prairie Creek on Foothills Trail
Open to pedestrians only

Foothills Trail - WA 162 Overpass (Pierce County, Washington)
Built 1956; Rehabilitated for trail use 1998
Pony plate girder bridge over WA 162 on Foothills Trail
Open to traffic

Foothills Trail - Wilkeson Creek Bridge (Pierce County, Washington)
Built 1918 using a secondhand girder from Auburn, WA
Deck plate girder bridge over Wilkeson Creek on Foothills Trail
Open to pedestrians only

Fort Frances-International Falls International Bridge (Koochiching County, Minnesota)
Built 1912; Northbound Couplet constructed in 1980
Parker through truss bridge over Rainy River on Us 53 Sb
Open to traffic

Fort Lincoln Trolley - Heart River Bridge (Morton County, North Dakota)
Built 1910
Pratt Through truss bridge over Heart River on Fort Lincoln Trolley
Open

Fort Lincoln Trolley - Old Channel Bridge (Morton County, North Dakota)
Built 1898, Relocated Here 1960
Pratt through truss bridge over Former channel on Fort Lincoln Trolley
Open to traffic

GRNW - Clearwater River Bridge (Nez Perce County, Idaho)
Built 1908 for NPRR 1971 swing span pinned closed, lift span drawbridge added
Pratt through truss bridge over Clearwater River & Dike Bypass on Great Northwest Railroad Company (GRNW)
Open

GRNW - Clearwater River Bridge (Lewis County, Idaho)
Built 1889, original location unknown, installed here 1916
Whipple-Pratt through truss swing bridge over Clearwater River on Great Northwest Railroad
Open to traffic

Latah Trail - W. Fork Little Bear Creek Bridge #1 (Latah County, Idaho)
Built 1932 and 1952 using secondhand spans
Deck plate girder bridge over West Fork Little Bear Creek on Latah Trail
Open to pedestrians only

Latah Trail - W. Fork Little Bear Creek Bridge #2 (Latah County, Idaho)
Built 1928
Pony/through plate girder bridge over West Fork Little Bear Creek on Latah Trail
Open to pedestrians only

Latah Trail - W. Fork Little Bear Creek Bridge #3 (Latah County, Idaho)
Built 1929 using a secondhand span
Pony/through plate girder bridge over West Fork Little Bear Creek on Latah Trail
Open to pedestrians only

Latah Trail - W. Fork Little Bear Creek Bridge #4 (Latah County, Idaho)
Built 1909 using a relocated 1902 span
Pony/through plate girder bridge over West Fork Little Bear Creek on Latah Trail
Open to pedestrians only

Latah Trail - W. Fork Little Bear Creek Bridge #5 (Latah County, Idaho)
Built 1911 using a secondhand 1901 girder
Pony/through plate girder bridge over West Fork Little Bear Creek on Latah Trail
Open to pedestrians only

Marshall Bridge (Spokane County, Washington)
Built 1949
Concrete tee beam bridge over Marshall Creek, Fish Lake Trail, and railroads on Cheney-Spokane Road
Open to traffic

MILW - Lake Easton Bridge (Kittitas County, Washington)
Lost Warren deck truss bridge over Yakima River & Northern Pacific Railroad on Chicago, Milwaukee, St. Paul & Pacific Railroad
Removed

MILW - Lind Viaduct (Adams County, Washington)
Lost Deck plate girder bridge over BNSF Railroad on Former CMStP&P Railroad
Removed but not replaced

MNNR - Edgerton Street Bridge (Ramsey County, Minnesota)
Built 1949
Pony/through plate girder bridge over Edgerton Street on Minnesota Commercial Railway
Open to traffic

MRL - Austin Creek Trestle (Lewis and Clark County, Montana)
Built 1896, Strengthened 1926
Deck plate girder bridge over Austin Creek on MRL RR
Open to traffic

MRL - Big Spring Bridge (Broadwater County, Montana)
Buil 1910
Deck plate girder bridge over Big Spring on Montana Rail Link (MRL)
Open to traffic

MRL - Bitterroot River Bridge #1 (Missoula County, Montana)
Built at various times using secondhand spans
Pratt through truss bridge over Bitterroot River on Montana Rail Link
Open to traffic

MRL - Bitterroot River Bridge #2 (Ravalli County, Montana)
Built 1944 using secondhand spans
Warren pony truss bridge over Bitterroot River on Montana Rail Link
Intact but closed to all traffic

MRL - Bitterroot River Bridge #3 (Ravalli County, Montana)
Built 1950 using secondhand spans
Pony truss bridge over Bitterroot River on Montana Rail Link
Open to traffic

MRL - Blackfoot River Bridge (Missoula County, Montana)
Built 1908
Pratt through truss bridge over Blackfoot River on Montana Rail Link
Open to traffic

MRL - Bonita Tunnel (Missoula County, Montana)
Built 1882, widened 1909
Tunnel on Montana Rail Link
Open to traffic

MRL - Bozeman Tunnel (Gallatin County, Montana)
Built 1945 to replace earlier 1884 tunnel
Tunnel under Bozeman Pass on Montana Rail Link
Open to traffic

MRL - Cedar Creek Viaduct (Mineral County, Montana)
Built 1911
Deck plate girder bridge over Cedar Creek on Montana Rail Link
Open to traffic

MRL - Clark Fork Bridge (Belknap) (Sanders County, Montana)
Built 1905, Two girders built 1938, Trusses built 1948
Warren deck truss bridge over Clark Fork on Montana Rail Link
Open to traffic

MRL - Clark Fork Bridge (Nimrod) (Granite County, Montana)
Built 1909
Pony/through plate girder bridge over Clark Fork on Montana Rail Link
Open to traffic

MRL - Clark Fork Bridge (Noxon) (Sanders County, Montana)
Deck plate girder bridge over Clark Fork on Montana RailLink
Open to traffic

MRL - Clark Fork River Bridge #10 (Sanders County, Montana)
Built 1908
Warren Deck truss bridge over Clark Fork River on Montana RailLink
Open to traffic

MRL - Clark Fork River Bridge #11 (Sanders County, Montana)
Built 1908
Pratt deck truss bridge over Clark Fork River on Montana RailLink
Open to traffic

MRL - Clark Fork River Bridge #12 (Sanders County, Montana)
Built 1908, Reinforced date unknown
Bridge over Clark Fork River on Montana RailLink
Open to traffic

MRL - Clark Fork River Bridge #13 (Sanders County, Montana)
Built 1908
Through truss bridge over Clark Fork River on Montana RailLink
Open to traffic

MRL - Clark Fork River Bridge #14 (Sanders County, Montana)
Built 1908
Through truss bridge over Clark Fork River on MRL
Open to traffic

MRL - Clark Fork River Bridge #7 (Missoula County, Montana)
Built 1908
Warren deck truss Bridge over Clark Fork River on Montana Rail Link
Open to traffic

MRL - Clark Fork River Bridge #8 (Missoula County, Montana)
Built 1908
Warren deck truss with all verticals bridge over Clark Fork River on Montana Rail Link
Open to traffic

MRL - Clark Fork River Bridge #9 (Missoula County, Montana)
Built 1909
Deck plate girder Bridge over Bitterroot River on Montana Rail Link
Open to traffic

MRL - Clark Fork River Bridge No. 2 (Missoula County, Montana)
Built 1896 at an unknown location, moved here 1929
Lattice deck girder bridge over Clark Fork River on Railroad (MRL)
Open to traffic

MRL - Fish Creek Trestle (1914) (Mineral County, Montana)
Built 1914
Deck plate girder bridge over Fish Creek on Montana Rail Link
Open to traffic

MRL - Flathead River Bridge (Sanders County, Montana)
Built 1896, Reinforced 1945
Through truss bridge over Flathead River on Montana RailLink


MRL - Gallatin River Bridge (Gallatin County, Montana)
Built 1906
Pony/through plate girder bridge over Gallatin River on Montana Rail Link
Open to traffic

MRL - Garrison Tunnel (Powell County, Montana)
Built 1882, widened 1909
Tunnel on Montana Rail Link
Open to traffic

MRL - Greenhorn Creek Trestle (Lewis and Clark County, Montana)
Built 1896, Strengthened 1926
Deck plate girder bridge over Greenhorn Creek on MRL RR
Open to traffic

MRL - Jefferson River Bridge (Jefferson County, Montana)
Relocated here 1949
Pratt Through truss bridge over Jefferson River on Montana RailLink
Intact but closed to all traffic

MRL - Jocko River Bridge (Lake County, Montana)
Built 1901, Strengthened 1934
Warren deck truss bridge over Jocko River on Montana Rail Link
Open to traffic

MRL - John Tunnel (Sanders County, Montana)
Tunnel under hillside on Montana Rail Link
Open to traffic

MRL - Juniper Drive Overpass (Missoula County, Montana)
Bridge over Juniper Drive on Montana Rail Link
Open to traffic

MRL - Madison River Bridge (Gallatin County, Montana)
Built 1905
Pratt through truss bridge over Madison River on Montana RailLink