Bridge Type
Main Span(s): Concrete [1] Arch - Deck [11]
Approach Span(s): Other [00]
Deck: Not applicable [N] with Wearing Surface: Not applicable (applies only to structures with no deck) [N]
Bridge Dimensions
Length: 18.9 m = 62.0 ft
Main Spans: 3 at 5 m = 16.4 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 6.4 m = 21.0 ft (2 Lanes) and Out-To-Out: 6.9 m = 22.6 ft for a 6.4 m = 21.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Unknown [00000]: Flathead County [029], Montana [30]
Owned by National Park Service [66], DOT District: 12
31 miles northeast of U.S
Condition
Deck: Not Applicable [N]
Superstructure: Satisfactory [6]
Substructure: Satisfactory [6]
Loading
Design:
Operating: 40.9 metric ton = 45.0 tons ()
Inventory: 24.5 metric ton = 27.0 tons ()
Appraisal
Structural: Equal to present minimum criteria [6]
Deck Geometry: Basically intolerable requiring high priority of replacement [2]
Road Alignment: Equal to present minimum criteria [6]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: September 1999 [999] and Frequency: 24
Future Work
Work Needed: Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Bridge Detour: 15.9 km = 9.9 mi
Traffic
ADT: 2000 (2017) and Trucks: 20%
Future ADT: 2000 (In 2037
)
