Bridge Type
Main Span(s): Concrete [1] Tee beam [04]
Approach Span(s): Other [00]
Deck: Not applicable [N] with Wearing Surface: Bituminous [6]
Bridge Dimensions
Length: 37.8 m = 124.0 ft
Main Spans: 3 at 14.9 m = 48.9 ft
Approach Spans: 0
Skew: 40
Width, Roadway: 6.4 m = 21.0 ft (2 Lanes) and Out-To-Out: 6.7 m = 22.0 ft for a 9.1 m = 29.9 ft approaching roadway.
Vertical Clearance: 9.14 m = 30.0 ft and Navigational Clearance: 0 = N/A
Location
Unknown [00000]: Missoula County [063], Montana [30]
Owned by State Highway Agency [01], DOT District: 1
3M W HUSON
Condition
Deck: Satisfactory [6]
Superstructure: Fair [5]
Substructure: Poor [4]
Loading
Design: M 13.5 / H 15 [2]
Operating: 62.1 metric ton = 68.3 tons (Load Factor(LF) [1])
Inventory: 37.1 metric ton = 40.8 tons (Load Factor(LF) [1])
Appraisal
Structural: Meets minimum tolerable limits to be left in place as is [4]
Deck Geometry: Meets minimum tolerable limits to be left in place as is [4]
Road Alignment: Equal to present minimum criteria [6]
Waterway: Equal to present desirable criteria [8] and Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Inspections
Date: September 1999 [999] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 0.5 km = 0.3 mi
Traffic
ADT: 143 (2019) and Trucks: 0%
Future ADT: 150 (In 2039
)