Bridge Type
Main Span(s): Steel [3] Truss - Thru [10]
Approach Span(s): Concrete [1] Channel beam [22]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Monolithic Concrete (concurrently placed with structural deck) [1]
Bridge Dimensions
Length: 201.8 m = 662.1 ft
Main Spans: 3 at 85.3 m = 279.9 ft
Approach Spans: 2
Skew: 0
Width, Roadway: 4.3 m = 14.1 ft (1 Lanes) and Out-To-Out: 6.7 m = 22.0 ft for a 6.1 m = 20.0 ft approaching roadway.
Vertical Clearance: 5.41 m = 17.8 ft and Navigational Clearance: 0 = N/A
Location
Skagit [99057]: Skagit County [057], Washington [53]
Owned by County Highway Agency [02], DOT District: 1
0.03 E JCT SR 20
Condition
Deck: Satisfactory [6]
Superstructure: Satisfactory [6]
Substructure: Good [7]
Loading
Design: M 13.5 / H 15 [2]
Operating: 10.9 metric ton = 12.0 tons (Load and Resistance Factor(LRFR) [3])
Inventory: 7.3 metric ton = 8.0 tons (Load and Resistance Factor(LRFR) [3])
Appraisal
Structural: Basically intolerable requiring high priority of replacement [2]
Deck Geometry: Basically intolerable requiring high priority of replacement [2]
Road Alignment: Equal to present minimum criteria [6]
Waterway: Better than present minimum criteria [7] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: March 2020 [0320] 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: 3.2 km = 2.0 mi
Traffic
ADT: 608 (2020) and Trucks: 11%
Future ADT: 742 (In 2040
)
