Status: Replaced by a new bridge
Location: 47.217235,-114.142573
Carries CR 320 over Jocko River
Design: truss/through/pratt
Design Details: Pin-connected, 5-panel Pratt through truss
Total Length: 90.9 Feet
Span Length: 90.9 Feet
Overview: Lost Pratt through truss bridge over Jocko River on CR 320
History: Built 1910; replaced 2012
Built: 1910
Location: Lake County
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Status: Removed but not replaced
Location: 47.181664,-114.102822
Carries CR 729 over Jocko River
Design: truss/pony
Design Details: Pony truss
Total Length: 92.9 Feet
Span Length: 89.9 Feet
Overview: Lost pony truss bridge over Jocko River on CR 729 near Arlee
History: Built 1920
Built: 1920
Location: Lake County
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Status: Open to traffic
Location: 47.180174,-114.101611
Carries Montana Rail Link over Jocko River
Design: truss/deck/warren
Design Details: Continuous Warren deck truss
Total Length: 181.0 Feet
Span Length: 60.0 Feet
Overview: Warren deck truss bridge over Jocko River on Montana Rail Link
History: Built 1901, Strengthened 1934
Built: 1901
Location: Lake County
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354514
MRL - Jocko River Bridge
Photo taken by David Jones in April 2016
354515
MRL - Jocko River Bridge
Photo taken by David Jones in April 2016
354516
MRL - Jocko River Bridge
Photo taken by David Jones in April 2016
354517
MRL - Jocko River Bridge
Photo taken by David Jones in April 2016
Status: Open to traffic
Location: 47.317553,-114.096811
Carries S Main Avenue over Mission Creek 052
Design: beam/tee
Design Details: Concrete tee beam
Total Length: 33.1 Feet
Span Length: 31.2 Feet
Overview: Concrete tee beam bridge over Mission Creek 052 on S Main Avenue
History: Built 1929; rehabilitated 1935
Built: 1929
Location: Lake County
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394624
South Main Avenue Bridge - St. Ignatius
View from the northeast
Photo taken by David Jones in June 2017
394625
South Main Avenue Bridge - St. Ignatius
View from the southwest
Photo taken by David Jones in June 2017
394626
South Main Avenue Bridge - St. Ignatius
Southern abutment
Photo taken by David Jones in June 2017
394627
South Main Avenue Bridge - St. Ignatius
South portal showing sidewalk
Photo taken by David Jones in June 2017
394628
South Main Avenue Bridge - St. Ignatius
Western railing
Photo taken by David Jones in June 2017
394629
South Main Avenue Bridge - St. Ignatius
North portal
Photo taken by David Jones in June 2017
Status: Open to traffic
Location: 47.861558,-114.280261
Carries Old Us Hwy 93 over Dayton Creek 105
Design: beam/tee
Design Details: Concrete tee beam
Total Length: 64.0 Feet
Span Length: 24.9 Feet
Overview: Concrete tee beam bridge over Dayton Creek 105 on Old Us Hwy 93
History: Built 1930
Built: 1930
Location: Lake County
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420402
Old US Highway 93 Bridge at Dayton
View from the south east
Photo taken by David Jones in March 2018
420403
Old US Highway 93 Bridge at Dayton
View from the south west
Photo taken by David Jones in March 2018
420404
Old US Highway 93 Bridge at Dayton
Northern Abutment
Photo taken by David Jones in March 2018
420405
Old US Highway 93 Bridge at Dayton
Tee Beams
Photo taken by David Jones in March 2018
420406
Old US Highway 93 Bridge at Dayton
Southern Portal
Photo taken by David Jones in March 2018
Status: Open to traffic
Location: 47.390644,-114.107497
Carries Fish Hatchery Road over Post Creek 075
Design: beam/tee
Design Details: Concrete tee beam
Total Length: 38.4 Feet
Span Length: 37.7 Feet
Overview: Concrete tee beam bridge over Post Creek 075 on Fish Hatchery Road
History: Built 1920
Built: 1920
Location: Lake County
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420397
Fish Hatchery Road Bridge
Northern Portal
Photo taken by David Jones in March 2018
420398
Fish Hatchery Road Bridge
View from the north west
Photo taken by David Jones in March 2018
420399
Fish Hatchery Road Bridge
Northeastern retainer wall corner
Photo taken by David Jones in March 2018
420400
Fish Hatchery Road Bridge
View from the north east
Photo taken by David Jones in March 2018
420401
Fish Hatchery Road Bridge
Southern Abutment
Photo taken by David Jones in March 2018
Status: Open to traffic
Location: 47.374007,-114.261819
Carries Montana Rail Link over Flathead River
Design: beam/stringer/wood
Design Details: Timber stringer
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Timber Stringer Bridge over Flathead River on Montana Rail Link
History:
Built:
Location: Lake County
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436665
Photo taken by Ron Brown in October 2018
436666
Photo taken by Ron Brown in October 2018
Status: Replaced by a new bridge
Location: 47.694356,-114.166990
Carries US 93 over Flathead River
Design: beam/stringer/wood
Design Details: Timber stringer
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Lost Timber stringer bridge over Flathead River on US 93
History:
Built:
Location: Lake County
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497890
Polson Bridge
looking west c1910
Photo from old postcard
Special Bridge Conditions Legend: R - Former location of relocated bridge. ! - At risk for demolition or destruction. X - Confirmed demolished or collapsed. S - Dismantled and/or in storage. L - Severe loss of historic integrity due to alteration.
