Bridge Type
Main Span(s): Steel [3] Truss - Thru [10]
Approach Span(s): Other [00]
Deck: Corrugated Steel [6] with Wearing Surface: Bituminous [6]
Bridge Dimensions
Length: 23.2 m = 76.1 ft
Main Spans: 1 at 22.9 m = 75.1 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 4.4 m = 14.4 ft (1 Lanes) and Out-To-Out: 4.8 m = 15.7 ft for a 8.2 m = 26.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Unknown [00000]: Phillips County [071], Montana [30]
Owned by County Highway Agency [02], DOT District: 4
S SACO
Condition
Deck: Poor [4]
Superstructure: Critical [2]
Substructure: Critical [2]
Loading
Design:
Operating: 13.6 metric ton = 15.0 tons (Load and Resistance Factor(LRFR) [3])
Inventory: 10.9 metric ton = 12.0 tons (Load and Resistance Factor(LRFR) [3])
Appraisal
Structural: Basically intolerable requiring high priority of replacement [2]
Deck Geometry: Equal to present minimum criteria [6]
Road Alignment: Equal to present minimum criteria [6]
Waterway: Somewhat better than minimum adequacy to tolerate being left in place as is [5] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: May 2020 [0520] and Frequency: 24
Future Work
Work Needed: Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Bridge Detour: 4.2 km = 2.6 mi
Traffic
ADT: 54 (2019) and Trucks: 0%
Future ADT: 57 (In 2039
)
