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: Monolithic Concrete (concurrently placed with structural deck) [1]
Bridge Dimensions
Length: 62 m = 203.4 ft
Main Spans: 3 at 20.5 m = 67.3 ft
Approach Spans: 0
Skew: 17
Width, Roadway: 8.4 m = 27.6 ft (2 Lanes) and Out-To-Out: 9.1 m = 29.9 ft for a 8.4 m = 27.6 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Unknown [00000]: Dawson County [021], Montana [30]
Owned by County Highway Agency [02], DOT District: 4
20M S GLENDIVE
Condition
Deck: Good [7]
Superstructure: Very Good [8]
Substructure: Satisfactory [6]
Loading
Design: HL93 [A]
Operating: 54.4 metric ton = 59.8 tons (Unknown [C])
Inventory: 32.7 metric ton = 36.0 tons (Unknown [C])
Appraisal
Structural: Equal to present minimum criteria [6]
Deck Geometry: Equal to present minimum criteria [6]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Equal to present desirable criteria [8] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: October 2020 [1020] and Frequency: 48
Future Work
Work Needed:
Bridge Detour: 3.9 km = 2.4 mi
Traffic
ADT: 100 (2003) and Trucks: 0%
Future ADT: 100 (In 2027
)
