Bridge Type
Main Span(s): Steel [3] Arch - Thru [12]
Approach Span(s): Prestressed concrete [5] Tee beam [04]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Monolithic Concrete (concurrently placed with structural deck) [1]
Bridge Dimensions
Length: 190.2 m = 624.0 ft
Main Spans: 1 at 89.9 m = 295.0 ft
Approach Spans: 4
Skew: 0
Width, Roadway: 12 m = 39.4 ft (2 Lanes) and Out-To-Out: 14.4 m = 47.2 ft for a 11.9 m = 39.0 ft approaching roadway.
Vertical Clearance: 5.11 m = 16.8 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: Good [7]
Loading
Design: MS 22.5 / HS 25 or greater [9]
Operating: 42.1 metric ton = 46.3 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Inventory: 32.4 metric ton = 35.6 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Appraisal
Structural: Better than present minimum criteria [7]
Deck Geometry: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Meets minimum tolerable limits to be left in place as is [4] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: April 1999 [499] 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: 1 km = 0.6 mi
Traffic
ADT: 11000 (2017) and Trucks: 5%
Future ADT: 13500 (In 2037
)
