CONLEY AVE over CLARK FORK RIVER 046 (Route: 39031)
Num:M39031000+00401x
Open: no restriction [A]
Built: 1912, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.2 Miles (0.2 Kilometers)

Bridge Type
Main Span(s): Concrete continuous [2] Girder and floorbeam system [03]
Approach Span(s): Other [00]
Deck: Not applicable [N] with Wearing Surface: Bituminous [6]

Bridge Dimensions
Length: 46.3 m = 151.9 ft
Main Spans: 3 at 15.2 m = 49.9 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 4.8 m = 15.7 ft (1 Lanes) and Out-To-Out: 6.2 m = 20.3 ft for a 6.1 m = 20.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A

Location
Deer Lodge [19825]: Powell County [077], Montana [30]
Owned by County Highway Agency [02], DOT District: 2
DEER LODGE-CONLEY AVE

Condition
Deck: Fair [5]
Superstructure: Poor [4]
Substructure: Serious [3]
Loading
Design:
Operating: 21 metric ton = 23.1 tons ()
Inventory: 21 metric ton = 23.1 tons ()

Appraisal
Structural: Basically intolerable requiring high priority of corrrective action [3]
Deck Geometry: Equal to present desirable criteria [8]
Road Alignment: Equal to present minimum criteria [6]
Waterway: Equal to present minimum criteria [6] and Bridge is scour critical; bridge foundations determined to be unstable. [3]
Inspections
Date: February 2020 [0220] and Frequency: 24

Future Work
Work Needed: Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Bridge Detour: 19.9 km = 12.3 mi
Traffic
ADT: 100 (2002) and Trucks: 0%
Future ADT: 100 (In 2026 )

W MILWAUKEE AVE over CLARK FORK RIVER (Route: 272)
Num:S00272000+03441x
Open: no restriction [A]
Built: 1940, Reconstructed: 1997
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.4 Miles (0.7 Kilometers)

Bridge Type
Main Span(s): Steel continuous [4] Stringer/Multi-beam or girder [02]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface:

Bridge Dimensions
Length: 36.6 m = 120.1 ft
Main Spans: 3 at 14.1 m = 46.3 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 7.3 m = 24.0 ft (2 Lanes) and Out-To-Out: 9.4 m = 30.8 ft for a 7.3 m = 24.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A

Location
Deer Lodge [19825]: Powell County [077], Montana [30]
Owned by State Highway Agency [01], DOT District: 2
DEER LODGE

Condition
Deck: Fair [5]
Superstructure: Good [7]
Substructure: Satisfactory [6]
Loading
Design: M 13.5 / H 15 [2]
Operating: 36.2 metric ton = 39.8 tons (Allowable Stress(AS) [2])
Inventory: 21.7 metric ton = 23.9 tons (Allowable Stress(AS) [2])

Appraisal
Structural: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck Geometry: Basically intolerable requiring high priority of replacement [2]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Better than present minimum criteria [7] and Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Inspections
Date: August 2020 [0820] and Frequency: 24

Future Work
Work Needed: Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Bridge Detour: 0.6 km = 0.4 mi
Traffic
ADT: 3151 (2019) and Trucks: 1%
Future ADT: 3309 (In 2039 )