Bridge Type
Main Span(s): Steel [3] Stringer/Multi-beam or girder [02]
Approach Span(s): Wood or timber [7] Stringer/Multi-beam or girder [02]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Bituminous [6]
Bridge Dimensions
Length: 88.7 m = 291.0 ft
Main Spans: 2 at 18.3 m = 60.0 ft
Approach Spans: 9
Skew: 0
Width, Roadway: 7.9 m = 25.9 ft (2 Lanes) and Out-To-Out: 10.7 m = 35.1 ft for a 7.9 m = 25.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Unknown [00000]: Linn County [043], Oregon [41]
Owned by State Highway Agency [01], DOT District: 4
025 MI S TANGENT
Condition
Deck: Satisfactory [6]
Superstructure: Satisfactory [6]
Substructure: Poor [4]
Loading
Design: M 13.5 / H 15 [2]
Operating: 49 metric ton = 53.9 tons (Allowable Stress(AS) [2])
Inventory: 29 metric ton = 31.9 tons (Allowable Stress(AS) [2])
Appraisal
Structural: Meets minimum tolerable limits to be left in place as is [4]
Deck Geometry: Basically intolerable requiring high priority of corrrective action [3]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Equal to present desirable criteria [8] and Bridge is scour critical; bridge foundations determined to be unstable. [3]
Inspections
Date: February 2020 [0220] and Frequency: 24
Future Work
Work Needed: Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Bridge Detour: 1.4 km = 0.9 mi
Traffic
ADT: 3100 (2018) and Trucks: 25%
Future ADT: 3700 (In 2038
)