Bridge Type
Main Span(s): Steel continuous [4] Truss - Deck [09]
Approach Span(s): Concrete continuous [2] Tee beam [04]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Bituminous [6]
Bridge Dimensions
Length: 155.8 m = 511.2 ft
Main Spans: 3 at 106.7 m = 350.1 ft
Approach Spans: 3
Skew: 0
Width, Roadway: 6.8 m = 22.3 ft (2 Lanes) and Out-To-Out: 9.2 m = 30.2 ft for a 9.8 m = 32.2 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Unknown [00000]: Skagit County [057], Washington [53]
Owned by State Highway Agency [01], DOT District: 1
0.2 E ISLAND CO
Condition
Deck: Satisfactory [6]
Superstructure: Satisfactory [6]
Substructure: Good [7]
Loading
Design: M 13.5 / H 15 [2]
Operating: 25.6 metric ton = 28.2 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Inventory: 19.8 metric ton = 21.8 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Appraisal
Structural: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck Geometry: Basically intolerable requiring high priority of replacement [2]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Equal to present desirable criteria [8] and Bridge foundations (including piles) on dry land well above flood water elevations. [9]
Inspections
Date: February 1999 [299] and Frequency: 24
Future Work
Work Needed: Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Bridge Detour: 15.9 km = 9.9 mi
Traffic
ADT: 19838 (2019) and Trucks: 6%
Future ADT: 29201 (In 2039
)
