Cascade County

NameLocationStatusDesignYear BuiltYear LostSpan Length (ft.)Total Length (ft.)
14th St SW-Sun River Bridge14th Street SW over Sun RiverRemoved but not replacedPratt through truss19081984----
15th Street Bridge (Older)15th Street over Missouri RiverReplaced by a new bridgePratt deck truss18921924----
1st Avenue North Bridge (Old)First Ave N / Central Ave West over Missouri RiverReplaced by new bridgeDeck arch19201996141.11130.0
1st Avenue North Bridge (Older)1st Avenue North over Missouri RiverReplaced by a new bridgeParker through truss--1920225.0225.0
25th Street Overpass25th Street over Railroad (BNSF)Open to trafficDeck arch1914--67.969.9
Alpha Six Lane BridgeAlpha Six Lane over Belt CreekOpen to trafficTimber stringer1960--21.0147.6
Belt Creek BridgeCR 224 over Belt CreekOpen to trafficPratt through truss1924--140.1145.0
Belt Creek BridgePrivate driveway over Belt CreekOpen to authorized vehicles onlyPratt through trussca. 1910------
Belt Creek BridgeUs 89 Fh 32 over Belt CreekOpen to trafficConcrete tee beam1951--60.0100.1
Black Eagle Memorial Island Bridgethe River's Edge Trail (pedestrian trail) onto Black Eagle Mem. Island over a channel of the Missouri RiverOpen to pedestriansDouble-intersection Warren through truss1908------
BNSF - 10th Avenue OverpassRailroad (BNSF) over 10th Avenue SWOpen to trafficSteel stringer--------
BNSF - 6th Street OverpassRailroad (BNSF) over 6th StreetOpen to trafficDeck plate girder1931--39.044.0
BNSF - Great Falls BridgeRailroad (BNSF) over Missouri RiverOpen to trafficDeck plate girder1906--80.11049.9
BNSF - Great Falls TurntableBNSF Railway over PitOpen to trafficPony/through plate girder1916------
BNSF - Otter Creek Bridge #12BNSF Railway over Big Otter CreekOpen to trafficDeck plate girder----65.0145.0
BNSF - Rainbow Falls BridgeBNSF Railroad over Missouri RiverOpen to trafficPratt deck truss1901------
BNSF - Sun River BridgeRailroad (BNSF) over Sun RiverOpen to trafficWarren through truss1928--34.134.1
BNSF - Tunnel No.1BNSF Railway under hillsideOpen to trafficTunnel--------
BNSF - Wayne TunnelBNSF Railway under Under a hill and Enger Cutoff RoadOpen to trafficTunnel1911------
Bridge Street BridgeBridge Street over Belt CreekReplaced by a new bridgeWarren pony truss1922201289.992.9
Cascade Hound Creek Road BridgeCascade Hound Creek Road/Central Ave E over Missouri RiverOpen to trafficDeck girder1954--180.165.3
County BridgeCascade Hound Creek Rd over Missouri RiverReplaced by a new bridgeCamelback through truss19091954----
CR 237 BridgeCR 237 over Belt Creek 084Open to trafficTimber stringer1938--26.9155.2
Eagle Falls Suspension BridgeWalkway over Missouri RiverRemoved but not replacedWire suspension------1100.0
Frontage Road 003 BridgeFrontage Road 003 over Prewett Creek 070Open to trafficConcrete tee beam1931--35.180.1
Frontage Road 003 BridgeFrontage Road 003 over Novak Creek 005Open to trafficConcrete tee beam1931--21.044.0
Frontage Road 022- Simms Creek BridgeFrontage Road 022 over Simms Creek 112Open to trafficTimber stringer1934--24.9149.9
GN - Great Falls Bridge (Old)Railroad over Missouri RiverReplaced by a new bridgeHowe through truss--------
Hardy BridgeOld US 91 over Missouri RiverOpen to trafficPolygonal Warren through truss1931--200.1549.9
Harley Creek Road BridgeHarley Creek Road (FR 834) over Belt CreekIntact but closed to all trafficPratt pony truss1910--49.951.8
MILW - Belt Creek TrestleFormer Milwaukee Road Railway over Belt CreekDerelict/abandonedDeck plate girderCa. 1914------
MILW - Red Coulee TrestleBridge on former Milwaukee Road RailwayDerelict/abandonedDeck plate girder--------
MILW - Red Coulee TunnelFormer Milwaukee Road Railway under Derelict/abandonedTunnel1914------
O.S.Warden BridgeUs 89-Mt 3-Mt 200 over Missouri River-U5205-RrOpen to trafficDeck plate girder1951--185.02092.3
Old US 89 BridgeBridge on an old alignment of US 89AbandonedConcrete stringer--------
Old US 89 Bridgean abandoned section of old US 89 over unnamed creekAbandonedConcrete stringer--------
Power Coulee BridgeCamp Rotary Road (FR 1049) over Branch of Belt CreekOpen to trafficPratt pony truss1909--74.875.8
Powerline Road BridgePowerline Road over Tributary of Missouri RiverOpen to trafficTimber stringer1931--19.0134.8
River's Edge Trail - 6th Street OverpassRiver's Edge Trail over 6th StreetOpen to pedestrians onlySteel stringer1931--32.235.1
River's Edge Trail - Black Eagle Falls TrestleRiver's Edge Trail over ValleyOpen to pedestrians onlyDeck plate girder1902------
River's Edge Trail - Missouri River BridgeRiver's Edge Trail over Missouri RiverOpen to pedestrians onlyDeck plate girder1914------
Sand Coulee Creek BridgeLower River Road over Sand Coulee CreekOpen to trafficTimber stringer1937--19.058.1
Simms BridgeSimms Fairfield Road (Rte 565) over Sun RiverPartial collapse in 1975, replaced in 1983Pratt through truss19121975127.0254.0
Sluice Boxes State Park Railroad TunnelSluice Boxes State Park Hiking Trail under HillOpen to pedestrians onlyTunnel1890------
Sun River BridgeCR 530 over Sun RiverReplaced by a new bridgeWarren pony truss1922--105.0215.9
Sun River Bridge at Simms (1983)Bridge on SIMMS FAIRFIELD RDOpen to trafficStringer1983--95.1379.0
Sun River CR 502 BridgeCR 502 over Sun RiverNo longer existsThrough truss19332001120.1277.9
Tenth Street Bridge10th Street (formerly US 87) over Missouri RiverOpen to pedestrians onlyOpen-spandrel arch1921--141.21130.0
Truly Cutoff BridgeTruly Cutoff Rd (CR 410) over Smith RiverOpen to trafficPratt through truss1908--111.9171.9
Ulm Bridge (Old)Millegan Road over Missouri RiverReplaced by a new bridgePennsylvania through truss19141983----
Ulm Interchange BridgeI-15 over Ulm Vaughn Road/Millegan RoadOpen to trafficConcrete tee beam1958--49.9129.9