Bridge Type
Main Span(s): Concrete [1] Girder and floorbeam system [03]
Approach Span(s): Concrete continuous [2] Girder and floorbeam system [03]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Bituminous [6]
Bridge Dimensions
Length: 142.3 m = 466.9 ft
Main Spans: 4 at 24.4 m = 80.1 ft
Approach Spans: 5
Skew: 99
Width, Roadway: 15.8 m = 51.8 ft (3 Lanes) and Out-To-Out: 17.8 m = 58.4 ft for a 17.1 m = 56.1 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
North Bend [49485]: King County [033], Washington [53]
Owned by City or Municipal Highway Agency [04], DOT District: 1
3.2 MI E OF I-90
Condition
Deck: Fair [5]
Superstructure: Fair [5]
Substructure: Fair [5]
Loading
Design:
Operating: 14.9 metric ton = 16.4 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Inventory: 11.3 metric ton = 12.4 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Appraisal
Structural: Basically intolerable requiring high priority of replacement [2]
Deck Geometry: Better than present minimum criteria [7]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Equal to present minimum criteria [6] and Bridge is scour critical; bridge foundations determined to be unstable. [3]
Inspections
Date: June 2020 [0620] 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: 0.2 km = 0.1 mi
Traffic
ADT: 6500 (2020) and Trucks: 5%
Future ADT: 9000 (In 2040
)