Status: Open to traffic
Location: 47.281111,-112.390833
Carries CR 300 over Dearborn River
Design: truss/half/pratt
Design Details: Pratt half-through truss
Total Length: 251.0 Feet
Span Length: 160.1 Feet
Overview: Deck truss bridge over Dearborn River on CR 300
History: Built 1897 by the King Bridge Co.; rehabilitated 2003
Built: 1897
Location: Lewis and Clark County
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117876
Photo taken by Historic American Engineering Record
117877
Photo taken by Historic American Engineering Record
117878
Photo taken by Historic American Engineering Record
117879
Photo taken by Historic American Engineering Record
117880
View Looking Northeast, General Elevation
Photo taken by Historic American Engineering Record
117881
View Looking South, General Elevation
Photo taken by Historic American Engineering Record
117882
View Looking South, Elevation Showing Underside Of Deck
Photo taken by Historic American Engineering Record
117883
View Looking Northwest, 3/4 Elevation Showing Approach Girders
Photo taken by Historic American Engineering Record
117884
View Looking Southeast, 'Barrel Shot'
Photo taken by Historic American Engineering Record
117885
View Looking Southeast, Showing Lower Chord And North Pier
Photo taken by Historic American Engineering Record
117886
Truss Seat At South Pier
Photo taken by Historic American Engineering Record
117887
Detail View Of Pin Connection And Vertical Compression Member
Photo taken by Historic American Engineering Record
253144
Photo taken by montanatom1950
Status: Open to traffic
Location: 47.468333,-112.410000
Carries CR 316 over Elk Creek
Design: truss/pony/warren
Design Details: Warren pony truss
Total Length: 50.9 Feet
Span Length: 49.9 Feet
Overview: Pony truss bridge over Elk Creek on CR 316
History: Built 1915
Built: 1915
Location: Lewis and Clark County
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360875
Elk Creek Bridge Augusta-Clemons Road
South Portal
Photo taken by David Jones in August 2016
360876
Elk Creek Bridge Augusta-Clemons Road
Builder's Plaque
Photo taken by David Jones in August 2016
360877
Elk Creek Bridge Augusta-Clemons Road
Photo taken by David Jones in August 2016
360878
Elk Creek Bridge Augusta-Clemons Road
View from the southwest
Photo taken by David Jones in August 2016
Status: No longer exists
Location: 47.388333,-112.494722
Carries CR 416 over Elk Creek
Design: truss/pony
Design Details: Pony truss
Total Length: 41.0 Feet
Span Length: 40.0 Feet
Overview: Lost pony truss bridge over Elk Creek on CR 416
History: Built 1915; replaced 2002
Built: 1915
Location: Lewis and Clark County
View Bridge Information In Wayback Machine
Status: Open to traffic
Location: 47.252778,-112.063333
Carries CR 320 over Flat Creek
Design: truss/pony/pratt
Design Details: Pin-connected, 4-panel Pratt pony truss
Total Length: 61.0 Feet
Span Length: 59.1 Feet
Overview: Pony truss bridge over Flat Creek on CR 320
History: Built 1901
Built: 1901
Location: Lewis and Clark County
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383227
Flat Creek Bridge - Birdtail Road
Builder's Plaque
Photo taken by David Jones in March 2017
383226
Flat Creek Bridge - Birdtail Road
Top corner connection
Photo taken by David Jones in March 2017
383225
Flat Creek Bridge - Birdtail Road
Decking & pin connections
Photo taken by David Jones in March 2017
383223
Flat Creek Bridge - Birdtail Road
Northeast abutment
Photo taken by David Jones in March 2017
383224
Flat Creek Bridge - Birdtail Road
View from the south
Photo taken by David Jones in March 2017
383222
Flat Creek Bridge - Birdtail Road
Southwest portal
Photo taken by David Jones in March 2017
Status: Open to traffic
Location: 46.830647,-112.201685
Carries CR 005 over Little Prickly Pear Creek
Design: truss/through/pratt
Design Details: Pratt through truss
Total Length: 101.1 Feet
Span Length: 100.1 Feet
Overview: Through truss bridge over Little Prickly Pear Creek on CR 005
History: Built 1905
Built: 1905
Location: Lewis and Clark County
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253140
Photo taken by montanatom1950
275694
Jack Walsh Bridge
Photo taken by Jack Schmidt in July 2013
275695
Jack Walsh Bridge
Photo taken by Jack Schmidt in July 2013
275696
Jack Walsh Bridge-sign
Photo taken by Jack Schmidt in July 2013
Status: No longer exists
Location: 46.938333,-112.120000
Carries CR 233 over Little Prickly Pear Creek
Design: truss/pony
Design Details: Pony truss
Total Length: 50.9 Feet
Span Length: 50.9 Feet
Overview: Lost pony truss bridge over Little Prickly Pear Creek on CR 233
History: Built 1897; replaced 2001
Built: 1897
Location: Lewis and Clark County
View Bridge Information In Wayback Machine
Status: Open to traffic
Location: 47.019444,-112.010556
Carries Old US 91 over Missouri River
Design: truss/through/warren
Design Details: Continuous Warren through truss
Total Length: 507.2 Feet
Span Length: 185.0 Feet
Overview: Cantilevered through truss bridge over the Missouri River on Old US 91
History: Built 1933 by W.P. Roscoe Co.
Built: 1933
Location: Lewis and Clark County
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119641
Photo taken by Historic American Engineering Record
119642
View Looking Southwest, General Elevation
Photo taken by Historic American Engineering Record
119643
View Looking West, 3/4 Elevation
Photo taken by Historic American Engineering Record
119644
View Looking Southwest, 'Barrel Shot'
Photo taken by Historic American Engineering Record
119645
View Looking Northeast, Pier And Bottom Chord
Photo taken by Historic American Engineering Record
119646
View Looking Southeast, Pier And Bottom Chord Lateral Bracing
Photo taken by Historic American Engineering Record
119647
View Looking South, General Elevation
Photo taken by Historic American Engineering Record
275697
Wolf Creek Bridge
Photo taken by Jack Schmidt in July 2013
275698
Wolf Creek Bridge
Photo taken by Jack Schmidt in July 2013
Status: Open to traffic
Location: 47.618420,-112.692163
Carries Castle Reef Road over North Fork Sun River
Design: truss/deck/warren/verticals
Design Details: Warren deck truss with all verticals
Total Length: 249.7 Feet
Span Length: 110.9 Feet
Overview: Warren deck truss bridge over North Fork Sun River on Castle Reef Road
History: Built 1916
Built: 1916
Location: Lewis and Clark County
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456667
North Fork Sun River Bridge
View from the northeast
Photo taken by David Jones in September 2019
456668
North Fork Sun River Bridge
Photo taken by David Jones in September 2019
456669
North Fork Sun River Bridge
View from the southwest
Photo taken by David Jones in September 2019
456670
North Fork Sun River Bridge
Northeastern portal
Photo taken by David Jones in September 2019
456671
North Fork Sun River Bridge
Northeastern approach
Photo taken by David Jones in September 2019
456672
North Fork Sun River Bridge
Southwestern abutment
Photo taken by David Jones in September 2019
456673
North Fork Sun River Bridge
Riveting
Photo taken by David Jones in September 2019
456674
North Fork Sun River Bridge
Underside framework
Photo taken by David Jones in September 2019
456675
North Fork Sun River Bridge
View from the north
Photo taken by David Jones in September 2019
Status: Replaced by a new bridge
Location: 46.605187,-112.088059
Carries Williams Street over Ten Mile Creek
Design: truss/pony/pratt
Design Details: Pratt Pony truss
Total Length: 66.9 Feet
Span Length: 65.0 Feet
Overview: Lost pony truss bridge over Ten Mile Creek on Williams Street in Helena West Side
History: Built 1894; replaced 2010
Built: 1894
Location: Lewis and Clark County
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223583
Overview; East Side; View To West
Photo taken by Kristi Hager for the Historic American Engineering Record
223584
Three-Quarter View With Fence; East Side; View To West-Northwest
Photo taken by Kristi Hager for the Historic American Engineering Record
223585
South Portal; View To North
Photo taken by Kristi Hager for the Historic American Engineering Record
223586
North Portal; View To South
Photo taken by Kristi Hager for the Historic American Engineering Record
223587
Three-Quarter View; East Side; View To Southwest
Photo taken by Kristi Hager for the Historic American Engineering Record
223588
Detail Of Underside And Abutment Wall; View To Northwest
Photo taken by Kristi Hager for the Historic American Engineering Record
223589
Mid-Span With Sidewalk; East Side; View To North
Photo taken by Kristi Hager for the Historic American Engineering Record
223590
Detail Of Sidewalk; East Side; View To North
Photo taken by Kristi Hager for the Historic American Engineering Record
223591
Three-Quarter View; West Side; View To South-Southeast
Photo taken by Kristi Hager for the Historic American Engineering Record
223592
Detail Of Ornamental Fence; View To North
Photo taken by Kristi Hager for the Historic American Engineering Record
356748
Ten Mile Creek Bridge
Southern Portal
Photo taken by David Jones in June 2016
356749
Ten Mile Creek Bridge
View from the north east
Photo taken by David Jones in June 2016
356750
Ten Mile Creek Bridge
Old lattice fencing is all that remains of old bridge - left of photo
Photo taken by David Jones in June 2016
Status: Replaced by a new bridge
Location: 46.714444,-111.803889
Carries Route 280 over Missouri River
Design: truss/through/pennsylvania
Design Details: Three pin-connected, 10-panel Pennsylvania through trusses
Total Length: 544.0 Feet
Span Length: 180.0 Feet
Overview: Lost three-span through truss bridge over Missouri River on Route 280
History: Built 1906 by the Minneapolis Steel & Machinery Co.; replaced 1982
Built: 1906
Location: Lewis and Clark County
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119447
General View, Southwest Side
Photo taken by Historic American Engineering Record
119448
Southwest And Southeast Sides
Photo taken by Historic American Engineering Record
119449
Northwest And Southwest Sides
Photo taken by Historic American Engineering Record
119450
Southeast Portal
Photo taken by Historic American Engineering Record
119451
Southeast Portal Nameplate
Photo taken by Historic American Engineering Record
119452
Deck Planking Viewed From Northwest
Photo taken by Historic American Engineering Record
119453
Detail Of Vertical Members
Photo taken by Historic American Engineering Record
119454
Detail Of Upper Chord And Portal Connections At Northwest Corner
Photo taken by Historic American Engineering Record
119455
Detail Of Northwest Portal
Photo taken by Historic American Engineering Record
119456
Detail Of Lower Chord Connection, Lateral Bracing And Timber Stringers
Photo taken by Historic American Engineering Record
119457
Oblique Detail Of Shoe Arrangement On Pier No. 2 On Southwest Side Showing 1978 Cable Support Modification
Photo taken by Historic American Engineering Record
119458
Detail Of Shoe Arrangement On Pier No. 2 On Southwest Side
Photo taken by Historic American Engineering Record
119459
Detail Of Shoe Arrangement Without Cable Support Modification
Photo taken by Historic American Engineering Record
119460
Detail Of Northeast Abutment Showing Shoe And Pin Connection
Photo taken by Historic American Engineering Record
458766
York Bridge
The Independent-Record: September 7 1978
458767
York Bridge
The Independent-Record: September 7 1978
458768
York Bridge
The Independent-Record: October 26 1978
458769
York Bridge
The Independent-Record: October 26 1978
458770
York Bridge
The Independent-Record: December 5 1978
Status: Awaiting reconstruction at the old State Nursery grounds near Helena
Location: 46.600708,-112.096245
Carries nothing at the time, but will cary a new pedestrian path over
Design: truss/through/pratt
Design Details: Three pin-connected, 7-panel Pratt through trusses
Total Length: 480.0 Feet
Span Length: 134.8 Feet
Overview: A three-span through truss bridge, formerly over the Missouri River at Craig, is now relocated and sitting at the old State Nursery grounds awaiting to be reassembled as a pedestrian bridge for a park.
History: Built 1903; replaced and relocated in 2006
Built: 1903
Location: Lewis and Clark County
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119655
Photo taken by Historic American Engineering Record
119656
Photo taken by Historic American Engineering Record
119657
Photo taken by Historic American Engineering Record
119658
Photo taken by Historic American Engineering Record
119659
Photo taken by Historic American Engineering Record
119660
Photo taken by Historic American Engineering Record
119661
Photo taken by Historic American Engineering Record
119662
Photo taken by Historic American Engineering Record
119663
Photo taken by Historic American Engineering Record
119664
Photo taken by Historic American Engineering Record
119665
Photo taken by Historic American Engineering Record
119666
Photo taken by Historic American Engineering Record
119667
Photo taken by Historic American Engineering Record
119668
Photo taken by Historic American Engineering Record
119669
Photo taken by Historic American Engineering Record
119670
Photo taken by Historic American Engineering Record
119671
Photo taken by Historic American Engineering Record
Status: Closed to all traffic
Location: 47.502450,-112.365189
Carries abandoned portion of Eberl Lane over Elk Creek
Design: truss/pony/warren
Design Details: Warren pony truss
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Pony truss bridge over Elk Creek on abandoned portion of Eberl Lane
History:
Built:
Location: Lewis and Clark County
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360849
Old Eberl Lane Bridge
South Portal
Photo taken by David Jones in August 2016
360850
Old Eberl Lane Bridge
Photo taken by David Jones in August 2016
360851
Old Eberl Lane Bridge
Northern concrete abutment
Photo taken by David Jones in August 2016
360852
Old Eberl Lane Bridge
View from southwest
Photo taken by David Jones in August 2016
Status: Abandoned
Location: 47.199059,-112.091551
Carries Road over Dearborn River
Design: truss/through/pratt
Design Details: Pratt through truss
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Abandoned pratt through truss bridge over Dearborn River on Road
History:
Built:
Location: Lewis and Clark County
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253142
Photo taken by montanatom1950
272486
Photo taken by Jack Schmidt in July 18, 2013
272487
Photo taken by Jack Schmidt in July 18, 2013
272488
Photo taken by Jack Schmidt in July 18, 2013
Status: Open to traffic
Location: 46.585556,-112.044444
Carries Howie Street over Benton Ave
Design: beam/stringer/wood
Design Details: Timber stringer
Total Length: 93.2 Feet
Span Length: 24.3 Feet
Overview: Timber stringer bridge over Benton Ave on Howie Street
History: Built 1881; rehabilitated 1974
Built: 1881
Location: Lewis and Clark County
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266525
Photo taken by montanatom1950
266526
Photo taken by montanatom1950
Status: Derelict/abandoned
Location: 46.801440,-112.014513
Carries an abandoned alignment of US 287/I-15 over an unnamed creek
Design: beam/stringer/steel
Design Details: Steel stringer
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Abandoned steel stringer bridge over an unnamed creek on an abandoned alignment of US 287/I-15
History:
Built:
Location: Lewis and Clark County
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357606
Old US 287 Bridge
View from the east
Photo taken by David Jones in June 2016
357607
Old US 287 Bridge
Photo taken by David Jones in June 2016
357608
Old US 287 Bridge
North approach
Photo taken by David Jones in June 2016
Status: Open to traffic
Location: 46.679970,-111.973055
Carries Trail over Prickly Pear Creek
Design: truss/pony
Design Details: Pony truss
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Pony truss bridge over Prickly Pear Creek on Trail
History:
Built:
Location: Lewis and Clark County
View Bridge Information In Wayback Machine
Status: Intact but closed to all traffic
Location: 46.950592,-112.109986
Carries BNSF Railway over Little Prickly Pear Creek
Design: truss/pony/warren
Design Details: Warren pony truss
Total Length: 140.0 Feet
Span Length: 97.0 Feet
Overview: Warren Pony truss bridge over Little Prickly Pear Creek on BNSF Railway
History:
Built:
Location: Lewis and Clark County
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359535
BNSF Bridge Over Little Prickly Pear Creek
View from the east
Photo taken by David Jones in June 2016
359536
BNSF Bridge Over Little Prickly Pear Creek
North Portal
Photo taken by David Jones in June 2016
359537
BNSF Bridge Over Little Prickly Pear Creek
Chords & Bracing
Photo taken by David Jones in June 2016
359538
BNSF Bridge Over Little Prickly Pear Creek
View from the northeast
Photo taken by David Jones in June 2016
Status: Bypassed and collapsed
Location: 46.657719,-112.236528
Carries Northern Pacific Railroad over
Design: tunnel
Design Details: Tunnel
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Lost Tunnel on Northern Pacific Railroad
History:
Built:
Location: Lewis and Clark County
View Bridge Information In Wayback Machine
316096
Photo taken by Montanatom
Status: Open to traffic
Location: 46.636885,-112.307031
Carries Montana Rail Link over Mullan Pass/Continental Divide
Design: tunnel
Design Details: Tunnel
Total Length: 3496.0 Feet
Span Length: 0.0 Feet
Overview: Bridge over Mullan Pass/Continental Divide on Montana Rail Link
History: Built 1883, enlarged and shortened 2009-10
Built: 1883
Location: Lewis and Clark County
View Bridge Information In Wayback Machine
338033
West Portal
Photo taken by Kjmoss1
Status: Intact but closed to all traffic
Location: 46.939686,-112.123981
Carries BNSF Railway over Hill
Design: tunnel
Design Details: Tunnel
Total Length: 362.0 Feet
Span Length: 0.0 Feet
Overview: Tunnel under Hill on BNSF Railway
History:
Built:
Location: Lewis and Clark County
View Bridge Information In Wayback Machine
357444
BNSF Tunnel #4
Photo taken by David Jones in June 2016
357445
BNSF Tunnel #4
Southwest Portal
Photo taken by David Jones in June 2016
357446
BNSF Tunnel #4
Northeast Portal
Photo taken by David Jones in June 2016
Status: Intact but closed to all traffic
Location: 46.912439,-112.116670
Carries BNSF Railway over Hill
Design: tunnel
Design Details: Tunnel
Total Length: 589.0 Feet
Span Length: 0.0 Feet
Overview: Tunnel under Hill on BNSF Railway
History:
Built: 1913
Location: Lewis and Clark County
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393594
BNSF Tunnel #5
Southeastern portal
Photo taken by David Jones in May 2017
393595
BNSF Tunnel #5
Southeastern portal date
Photo taken by David Jones in May 2017
393596
BNSF Tunnel #5
Northwestern portal
Photo taken by David Jones in May 2017
393597
BNSF Tunnel #5
Northwestern portal date
Photo taken by David Jones in May 2017
393598
BNSF Tunnel #5
Northwestern approach
Photo taken by David Jones in May 2017
Status: Open to traffic
Location: 47.451187,-112.434244
Carries Private driveway over Elk Creek
Design: truss/pony/pratt
Design Details: 4-panel, pinned Pratt pony truss
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Pratt pony truss bridge over Elk Creek on Private Driveway
History:
Built: ca. 1890's
Location: Lewis and Clark County
View Bridge Information In Wayback Machine
456381
Converse Ranch Bridge
View from the southeast
Photo taken by David Jones in September 2019
456382
Converse Ranch Bridge
View from the east
Photo taken by David Jones in September 2019
456383
Converse Ranch Bridge
southwestern Portal
Photo taken by David Jones in September 2019
456384
Converse Ranch Bridge
Northeastern abutment
Photo taken by David Jones in September 2019
456385
Converse Ranch Bridge
Southwestern abutment
Photo taken by David Jones in September 2019
456386
Converse Ranch Bridge
Railing
Photo taken by David Jones in September 2019
456387
Converse Ranch Bridge
Pin connection
Photo taken by David Jones in September 2019
456388
Converse Ranch Bridge
View from the east
Photo taken by David Jones in September 2019
Status: Open to traffic
Location: 47.616152,-112.734264
Carries Hanna Road (FR 8983) over Sun River
Design: truss/pony/parker
Design Details: (2)7-panel, riveted Parker pony trusses
Total Length: 273.0 Feet
Span Length: 106.0 Feet
Overview: Parker pony truss bridge over Sun River on Hanna Road
History:
Built: 1927
Location: Lewis and Clark County
View Bridge Information In Wayback Machine
456656
Hanna Road Bridge
View from the east
Photo taken by David Jones in September 2019
456657
Hanna Road Bridge
Photo taken by David Jones in September 2019
456658
Hanna Road Bridge
Southeastern portal
Photo taken by David Jones in September 2019
456659
Hanna Road Bridge
Northwestern pier
Photo taken by David Jones in September 2019
456660
Hanna Road Bridge
Southeastern pier & approach
Photo taken by David Jones in September 2019
456661
Hanna Road Bridge
View from the southwest
Photo taken by David Jones in September 2019
456662
Hanna Road Bridge
Northwestern portal
Photo taken by David Jones in September 2019
456663
Hanna Road Bridge
Riveting
Photo taken by David Jones in September 2019
456664
Hanna Road Bridge
Railing & cross supports
Photo taken by David Jones in September 2019
Status: Open to traffic
Location: 47.417025,-112.475428
Carries CR 416 over Elk Creek
Design: truss/pony/pratt
Design Details: Pratt pony truss
Total Length: 69.9 Feet
Span Length: 60.0 Feet
Overview: Pratt pony truss bridge over Elk Creek on CR 416
History: Built 1901
Built: 1901
Location: Lewis and Clark County
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456374
County Road 435 Bridge
View from the southeast
Photo taken by David Jones in September 2019
456375
County Road 435 Bridge
Southern Portal
Photo taken by David Jones in September 2019
456376
County Road 435 Bridge
Pin Connection
Photo taken by David Jones in September 2019
456377
County Road 435 Bridge
Pin Connection
Photo taken by David Jones in September 2019
456378
County Road 435 Bridge
Railing
Photo taken by David Jones in September 2019
456379
County Road 435 Bridge
Eastern side of the bridge
Photo taken by David Jones in September 2019
Status: Intact but closed to all traffic
Location: 46.925779,-112.121352
Carries BNSF Railway over Prickly Pear Creek
Design: girder/deck/plate
Design Details: Deck plate girder
Total Length: 197.0 Feet
Span Length: 0.0 Feet
Overview: Deck plate girder bridge over Prickly Pear Creek on BNSF Railway
History:
Built:
Location: Lewis and Clark County
View Bridge Information In Wayback Machine
359531
BNSF - Over Prickly Pear Creek
View from the southeast
Photo taken by David Jones in March 2015
359532
BNSF - Over Prickly Pear Creek
Photo taken by David Jones in June 2016
359533
BNSF - Over Prickly Pear Creek
South Portal
Photo taken by David Jones in June 2016
Status:
Location: 46.977497,-112.081524
Carries over
Design: unknown
Design Details:
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Bridge
History:
Built:
Location: Lewis and Clark County
View Bridge Information In Wayback Machine
Status: Open to traffic
Location: 46.977525,-112.081539
Carries Frontage Road 003 over Sheep Creek 117
Design: beam/tee
Design Details: Concrete tee beam
Total Length: 64.0 Feet
Span Length: 30.8 Feet
Overview: Concrete tee beam bridge over Sheep Creek 117 on Frontage Road 003
History: Built 1933
Built: 1933
Location: Lewis and Clark County
View Bridge Information In Wayback Machine
359540
Sheep Creek Bridge
View from the north west
Photo taken by David Jones in June 2016
359541
Sheep Creek Bridge
Photo taken by David Jones in June 2016
359542
Sheep Creek Bridge
Photo taken by David Jones in July 2016
359543
Sheep Creek Bridge
North Portal
Photo taken by David Jones in July 2016
Status:
Location: 47.162199,-112.218033
Carries over
Design: unknown
Design Details:
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Bridge
History:
Built:
Location: Lewis and Clark County
View Bridge Information In Wayback Machine
Status:
Location: 47.484179,-112.395653
Carries over
Design: unknown
Design Details:
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Bridge
History:
Built:
Location: Lewis and Clark County
View Bridge Information In Wayback Machine
Status: Open to traffic
Location: 47.484150,-112.395619
Carries CR 309 over Elk Creek 041
Design: truss/through/pratt
Design Details: Pin-connected, 5-panel Pratt through truss
Total Length: 91.9 Feet
Span Length: 89.9 Feet
Overview: Through truss bridge over Elk Creek 041 on CR 309
History: Built 1914
Built: 1914
Location: Lewis and Clark County
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360853
Lover's Lane Bridge Over Elk Creek
View from the northwest
Photo taken by David Jones in August 2016
360854
Lover's Lane Bridge Over Elk Creek
Builder's Plaque
Photo taken by David Jones in August 2016
360855
Lover's Lane Bridge Over Elk Creek
Photo taken by David Jones in August 2016
360856
Lover's Lane Bridge Over Elk Creek
Bridge undersupport
Photo taken by David Jones in August 2016
360857
Lover's Lane Bridge Over Elk Creek
Abutment
Photo taken by David Jones in August 2016
360858
Lover's Lane Bridge Over Elk Creek
West Portal
Photo taken by David Jones in August 2016
Status:
Location: 47.502449,-112.367156
Carries over
Design: unknown
Design Details:
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Bridge
History:
Built:
Location: Lewis and Clark County
View Bridge Information In Wayback Machine
Status: Open to traffic
Location: 47.502411,-112.367156
Carries S 21 over Elk Creek 119
Design: beam/tee
Design Details: Concrete tee beam
Total Length: 80.1 Feet
Span Length: 39.0 Feet
Overview: Concrete tee beam bridge over Elk Creek 119 on S 21
History: Built 1935
Built: 1935
Location: Lewis and Clark County
View Bridge Information In Wayback Machine
360868
SR 21 Bridge Over Elk Creek
View from the southwest
Photo taken by David Jones in August 2016
360869
SR 21 Bridge Over Elk Creek
West Portal
Photo taken by David Jones in August 2016
360870
SR 21 Bridge Over Elk Creek
Photo taken by David Jones in August 2016
360871
SR 21 Bridge Over Elk Creek
View from the northwest
Photo taken by David Jones in August 2016
Status:
Location: 47.502239,-112.364691
Carries over
Design: unknown
Design Details:
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Bridge
History:
Built:
Location: Lewis and Clark County
View Bridge Information In Wayback Machine
Status: Open to traffic
Location: 47.502197,-112.364703
Carries S 21 over Elk Creek Overflow 123
Design: beam/stringer/wood
Design Details: Timber stringer
Total Length: 40.0 Feet
Span Length: 19.0 Feet
Overview: Timber stringer bridge over Elk Creek Overflow 123 on S 21
History: Built 1949
Built: 1949
Location: Lewis and Clark County
View Bridge Information In Wayback Machine
360872
SR 21 Bridge Over Elk Creek Overflow
View from the southeast
Photo taken by David Jones in August 2016
360873
SR 21 Bridge Over Elk Creek Overflow
Photo taken by David Jones in August 2016
360874
SR 21 Bridge Over Elk Creek Overflow
West Portal
Photo taken by David Jones in August 2016
Status:
Location: 46.577549,-112.022482
Carries over
Design: unknown
Design Details:
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Bridge
History:
Built:
Location: Lewis and Clark County
View Bridge Information In Wayback Machine
Status: Open to traffic
Location: 46.577508,-112.022486
Carries Woodbridge Drive over Drainage 002
Design: arch/deck
Design Details: Deck arch
Total Length: 90.9 Feet
Span Length: 60.0 Feet
Overview: Deck arch bridge over Drainage 002 on Woodbridge Drive
History: Built 1975
Built: 1975
Location: Lewis and Clark County
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360885
Woodbridge Drive Deck Arch Bridge
East Portal
Photo taken by David Jones in August 2016
360886
Woodbridge Drive Deck Arch Bridge
Outboard wooden arch
Photo taken by David Jones in August 2016
360887
Woodbridge Drive Deck Arch Bridge
Wooden arches
Photo taken by David Jones in August 2016
360888
Woodbridge Drive Deck Arch Bridge
Center section
Photo taken by David Jones in August 2016
360889
Woodbridge Drive Deck Arch Bridge
View from southwest
Photo taken by David Jones in August 2016
360890
Woodbridge Drive Deck Arch Bridge
Western abutment
Photo taken by David Jones in August 2016
Status:
Location: 47.162271,-112.218013
Carries over
Design: unknown
Design Details:
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Bridge
History:
Built:
Location: Lewis and Clark County
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Status: Bridge is on private property. A dirt road from the ranch to the north crosses the bridge and then veers to the east.
Location: 47.162271,-112.218013
Carries over Pruden Creek
Design: truss/pony/pratt
Design Details: Pratt pony truss
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Bridge over Pruden Creek
History:
Built:
Location: Lewis and Clark County
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361308
Pruden Creek Bridge - Highway 434
View from the west
Photo taken by David Jones in August 2016
361309
Pruden Creek Bridge - Highway 434
Northern approach
Photo taken by David Jones in August 2016
361310
Pruden Creek Bridge - Highway 434
Pony truss supports and connection with deck truss
Photo taken by David Jones in August 2016
361311
Pruden Creek Bridge - Highway 434
Center deck truss
Photo taken by David Jones in August 2016
361312
Pruden Creek Bridge - Highway 434
Southern approach
Photo taken by David Jones in August 2016
Status: Intact but closed to all traffic
Location: 47.045565,-112.049188
Carries Old Alignment of US 287 over Rock Creek
Design: beam/tee
Design Details: Tee beam
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Concrete tee beam bridge over Rock Creek on Old Alignment of US 287
History:
Built:
Location: Lewis and Clark County
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383312
Rock Creek Bridge On Old Alignment Of US 287
Pier
Photo taken by David Jones in March 2017
383311
Rock Creek Bridge On Old Alignment Of US 287
View from the northwest
Photo taken by David Jones in March 2017
383310
Rock Creek Bridge On Old Alignment Of US 287
Side Rails
Photo taken by David Jones in March 2017
383309
Rock Creek Bridge On Old Alignment Of US 287
Corner Post
Photo taken by David Jones in March 2017
383308
Rock Creek Bridge On Old Alignment Of US 287
View from the southwest
Photo taken by David Jones in March 2017
Status:
Location: 46.913377,-112.118115
Carries over
Design: unknown
Design Details:
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Bridge
History:
Built:
Location: Lewis and Clark County
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Status: Open to traffic
Location: 46.589478,-111.921006
Carries E Main Street over Prickly Pear Creek 009
Design: beam/tee
Design Details: Concrete tee beam
Total Length: 66.9 Feet
Span Length: 33.1 Feet
Overview: Concrete tee beam bridge over Prickly Pear Creek 009 on E Main Street
History: Built 1934
Built: 1934
Location: Lewis and Clark County
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447012
East Main St - Prickley Pear Creek Bridge
View from the northwest
Photo taken by David Jones in May 2019
447013
East Main St - Prickley Pear Creek Bridge
Center Pier
Photo taken by David Jones in May 2019
447014
East Main St - Prickley Pear Creek Bridge
Southeastern railing
Photo taken by David Jones in May 2019
447015
East Main St - Prickley Pear Creek Bridge
View from the southeast
Photo taken by David Jones in May 2019
447016
East Main St - Prickley Pear Creek Bridge
Northwest end railing
Photo taken by David Jones in May 2019
447017
East Main St - Prickley Pear Creek Bridge
South side of the bridge
Photo taken by David Jones in May 2019
Status: Open to traffic
Location: 47.076508,-111.955586
Carries Craig Frontage Road over Wegner Creek 055
Design: beam/tee
Design Details: Concrete tee beam
Total Length: 41.0 Feet
Span Length: 39.4 Feet
Overview: Concrete tee beam bridge over Wegner Creek 055 on Craig Frontage Road
History: Built 1934
Built: 1934
Location: Lewis and Clark County
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456453
Craig Frontage - Wegner Creek Road Bridge
View from the east
Photo taken by David Jones in September 2019
456454
Craig Frontage - Wegner Creek Road Bridge
View from the northeast
Photo taken by David Jones in September 2019
456455
Craig Frontage - Wegner Creek Road Bridge
Southern Abutment
Photo taken by David Jones in September 2019
456456
Craig Frontage - Wegner Creek Road Bridge
Northern Abutment
Photo taken by David Jones in September 2019
456457
Craig Frontage - Wegner Creek Road Bridge
View from the northwest
Photo taken by David Jones in September 2019
456458
Craig Frontage - Wegner Creek Road Bridge
Railing
Photo taken by David Jones in September 2019
456459
Craig Frontage - Wegner Creek Road Bridge
Corner post
Photo taken by David Jones in September 2019
456460
Craig Frontage - Wegner Creek Road Bridge
Southern portal
Photo taken by David Jones in September 2019
Status: Intact but closed to all traffic
Location: 47.128389,-111.911165
Carries BNSF Railway over Dearborn River
Design: truss/through/baltimore
Design Details: Through truss and through girders
Total Length: 536.0 Feet
Span Length: 200.0 Feet
Overview: Baltimore Through truss bridge over Dearborn River on BNSF Railway
History:
Built:
Location: Lewis and Clark County
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Status: Open to traffic
Location: 46.646813,-112.301587
Carries MRL RR over Austin Creek
Design: girder/deck/plate
Design Details: Deck plate girder
Total Length: 494.0 Feet
Span Length: 0.0 Feet
Overview: Deck plate girder bridge over Austin Creek on MRL RR
History: Built 1896, Strengthened 1926
Built: 1896
Location: Lewis and Clark County
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493040
MRL - Austin Creek Trestle
Photo from wikimapia
Status: Open to traffic
Location: 46.659713,-112.281297
Carries MRL RR over Greenhorn Creek
Design: girder/deck/plate
Design Details: Deck plate girder
Total Length: 580.0 Feet
Span Length: 0.0 Feet
Overview: Deck plate girder bridge over Greenhorn Creek on MRL RR
History: Built 1896, Strengthened 1926
Built: 1896
Location: Lewis and Clark County
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501717
Greenhorn Trestle
Westbound Northern Pacific Mainstreeter crossing Greenhorn Trestle in the early 1950's
Photo taken by Russell C. Johnson
Status: Under construction, storage, ?
Location: 46.628210,-112.121398
Carries a private road over a private road
Design: truss/pony/pratt
Design Details: Pratt pony truss
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Pratt pony truss bridge over a private road on a private road
History: Built 1894
Built: 1894
Location: Lewis and Clark County
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Status: Open to authorized vehicles only
Location: 46.955814,-112.584874
Carries Stone Campbell Drive over Blackfoot River
Design: truss/through/pratt
Design Details: 7-panel, pinned Pratt through truss
Total Length: 0.0 Feet
Span Length: 127.0 Feet
Overview: Pratt through truss bridge over Blackfoot River on Stone Campbell Drive
History: Built 1912 at Simms in Cascade County; Moved here in 1983.
Built: 1912
Location: Lewis and Clark County
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472315
Swede Gulch Bridge
Great Falls Tribune: April 26 1975
Status: Open to traffic
Location: 47.108765,-111.950544
Carries BNSF Railway over hillside
Design: tunnel
Design Details: Tunnel
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Tunnel under hillside on BNSF Railway
History:
Built:
Location: Lewis and Clark County
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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.
