Bridge Type
Main Span(s): Wood or timber [7] Truss - Thru [10]
Approach Span(s): Wood or timber [7] Stringer/Multi-beam or girder [02]
Deck: Wood or Timber [8] with Wearing Surface: Wood or Timber [7]
Bridge Dimensions
Length: 41.8 m = 137.1 ft
Main Spans: 1 at 22.9 m = 75.1 ft
Approach Spans: 4
Skew: 0
Width, Roadway: 5.1 m = 16.7 ft (2 Lanes) and Out-To-Out: 5.5 m = 18.0 ft for a 5.8 m = 19.0 ft approaching roadway.
Vertical Clearance: 3.33 m = 10.9 ft and Navigational Clearance: 0 = N/A
Location
Unknown [00000]: Benton County [003], Oregon [41]
Owned by County Highway Agency [02], DOT District: 4
0251 MI W OF WREN
Condition
Deck: Good [7]
Superstructure: Fair [5]
Substructure: Fair [5]
Loading
Design: M 13.5 / H 15 [2]
Operating: 15.9 metric ton = 17.5 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Inventory: 12.3 metric ton = 13.5 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Appraisal
Structural: Meets minimum tolerable limits to be left in place as is [4]
Deck Geometry: N/A [N]
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 conditions; field review indicates action is required. [4]
Inspections
Date: July 2020 [0720] and Frequency: 12
Future Work
Work Needed:
Bridge Detour: 2.3 km = 1.4 mi
Traffic
ADT: 84 (2020) and Trucks: 0%
Future ADT: 113 (In 2040
)
