Bridge Type
Main Span(s): Steel [3] Arch - Deck [11]
Approach Span(s): Other [00]
Deck: Open Grating [3] with Wearing Surface: Other [9]
Bridge Dimensions
Length: 75.3 m = 247.1 ft
Main Spans: 3 at 54.9 m = 180.1 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 6.7 m = 22.0 ft (2 Lanes) and Out-To-Out: 11.3 m = 37.1 ft for a 7.6 m = 24.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Unknown [00000]: Whatcom County [073], Washington [53]
Owned by State Highway Agency [01], DOT District: 1
7.0 E SKAGIT CO
Condition
Deck: Satisfactory [6]
Superstructure: Satisfactory [6]
Substructure: Good [7]
Loading
Design: MS 18 / HS 20 [5]
Operating: 84.4 metric ton = 92.8 tons (Load Factor(LF) [1])
Inventory: 49.9 metric ton = 54.9 tons (Load Factor(LF) [1])
Appraisal
Structural: Equal to present minimum criteria [6]
Deck Geometry: Basically intolerable requiring high priority of corrrective action [3]
Road Alignment: Basically intolerable requiring high priority of corrrective action [3]
Waterway: Equal to present desirable criteria [8] and Bridge foundations (including piles) on dry land well above flood water elevations. [9]
Inspections
Date: August 2020 [0820] 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: 1701 (2019) and Trucks: 7%
Future ADT: 2442 (In 2039
)
