Bridge Type
Main Span(s): Steel continuous [4] Arch - Thru [12]
Approach Span(s): Concrete continuous [2] Box beam or girders - Multiple [05]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Monolithic Concrete (concurrently placed with structural deck) [1]
Bridge Dimensions
Length: 374 m = 1227.1 ft
Main Spans: 3 at 158.5 m = 520.0 ft
Approach Spans: 3
Skew: 0
Width, Roadway: 7.9 m = 25.9 ft (2 Lanes) and Out-To-Out: 10 m = 32.8 ft for a 9.8 m = 32.2 ft approaching roadway.
Vertical Clearance: 4.9 m = 16.1 ft and Navigational Clearance: 9.8 m = 32.2 ft
Location
Unknown [00000]: Douglas County [017], Washington [53]
Owned by State Highway Agency [01], DOT District: 2
21.8 N JCT US 2
Condition
Deck: Poor [4]
Superstructure: Satisfactory [6]
Substructure: Good [7]
Loading
Design: MS 18 / HS 20 [5]
Operating: 38.1 metric ton = 41.9 tons (Load Factor(LF) [1])
Inventory: 22.7 metric ton = 25.0 tons (Load Factor(LF) [1])
Appraisal
Structural: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
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: September 1999 [999] and Frequency: 24
Future Work
Work Needed: Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Bridge Detour: 13.4 km = 8.3 mi
Traffic
ADT: 5658 (2019) and Trucks: 16%
Future ADT: 7015 (In 2039
)
