Bridge Type
Main Span(s): Prestressed concrete [5] Tee beam [04]
Approach Span(s): Other [00]
Deck: Concrete Precast Panels [2] with Wearing Surface:
Bridge Dimensions
Length: 24.6 m = 80.7 ft
Main Spans: 1 at 22.9 m = 75.1 ft
Approach Spans: 0
Skew: 15
Width, Roadway: 7.3 m = 24.0 ft (2 Lanes) and Out-To-Out: 8 m = 26.2 ft for a 4.9 m = 16.1 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Unknown [00000]: Granite County [039], Montana [30]
Owned by County Highway Agency [02], DOT District: 1
8M S DRUMMOND
Condition
Deck: Very Good [8]
Superstructure: Very Good [8]
Substructure: Good [7]
Loading
Design: HL93 [A]
Operating: 49.9 metric ton = 54.9 tons (Load and Resistance Factor(LRFR) [3])
Inventory: 38.1 metric ton = 41.9 tons (Load and Resistance Factor(LRFR) [3])
Appraisal
Structural: Better than present minimum criteria [7]
Deck Geometry: Equal to present minimum criteria [6]
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: July 2020 [0720] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 3.2 km = 2.0 mi
Traffic
ADT: 100 (2002) and Trucks: 0%
Future ADT: 100 (In 2026
)
