Bridge Type
Main Span(s): Prestressed concrete [5] Stringer/Multi-beam or girder [02]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Latex Concrete or similar additive [3]
Bridge Dimensions
Length: 105.7 m = 346.8 ft
Main Spans: 4 at 26.5 m = 86.9 ft
Approach Spans: 0
Skew: 20
Width, Roadway: 22.6 m = 74.2 ft (4 Lanes) and Out-To-Out: 26.2 m = 86.0 ft for a 23.2 m = 76.1 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Unknown [00000]: Missoula County [063], Montana [30]
Owned by State Highway Agency [01], DOT District: 1
MISSOULA-BROOKS ST
Condition
Deck: Satisfactory [6]
Superstructure: Fair [5]
Substructure: Satisfactory [6]
Loading
Design: MS 18 / HS 20 [5]
Operating: 34.5 metric ton = 38.0 tons (Load and Resistance Factor(LRFR) [3])
Inventory: 19.1 metric ton = 21.0 tons (Load and Resistance Factor(LRFR) [3])
Appraisal
Structural: Meets minimum tolerable limits to be left in place as is [4]
Deck Geometry: Superior to present desirable criteria [9]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Superior to present desirable criteria [9] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: June 2020 [0620] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 19.9 km = 12.3 mi
Traffic
ADT: 26825 (2019) and Trucks: 1%
Future ADT: 28166 (In 2039
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