Bridge Type
Main Span(s): Steel [3] Truss - Thru [10]
Approach Span(s): Prestressed concrete continuous [6] Stringer/Multi-beam or girder [02]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Monolithic Concrete (concurrently placed with structural deck) [1]
Bridge Dimensions
Length: 293.2 m = 962.0 ft
Main Spans: 2 at 93.6 m = 307.1 ft
Approach Spans: 4
Skew: 0
Width, Roadway: 12.2 m = 40.0 ft (2 Lanes) and Out-To-Out: 14 m = 45.9 ft for a 12.2 m = 40.0 ft approaching roadway.
Vertical Clearance: 6.1 m = 20.0 ft and Navigational Clearance: 0 = N/A
Location
King [99033]: King County [033], Washington [53]
Owned by County Highway Agency [02], DOT District: 1
0.5 MI W OF SR-203
Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Satisfactory [6]
Loading
Design: HL93 [A]
Operating: 59.9 metric ton = 65.9 tons (Load Factor(LF) [1])
Inventory: 36.3 metric ton = 39.9 tons (Load Factor(LF) [1])
Appraisal
Structural: Equal to present minimum criteria [6]
Deck Geometry: Equal to present minimum criteria [6]
Road Alignment: Equal to present desirable criteria [8]
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: March 1999 [399] and Frequency: 24
Future Work
Work Needed: Replacement of bridge or other structure because of relocation of road. [32]
Bridge Detour: 2.1 km = 1.3 mi
Traffic
ADT: 2850 (2017) and Trucks: 5%
Future ADT: 6500 (In 2037
)
