Bridge Type
Main Span(s): Steel [3] Arch - Thru [12]
Approach Span(s): Concrete [1] Tee beam [04]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Monolithic Concrete (concurrently placed with structural deck) [1]
Bridge Dimensions
Length: 242.9 m = 797.0 ft
Main Spans: 1 at 176.8 m = 580.1 ft
Approach Spans: 6
Skew: 0
Width, Roadway: 7.3 m = 24.0 ft (2 Lanes) and Out-To-Out: 9.1 m = 29.9 ft for a 11 m = 36.1 ft approaching roadway.
Vertical Clearance: 5.05 m = 16.6 ft and Navigational Clearance: 22.9 m = 75.1 ft
Location
Skagit [99057]: Skagit County [057], Washington [53]
Owned by County Highway Agency [02], DOT District: 1
0.95 JCT MORRIS ON MAPLE
Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: MS 13.5 / HS 15 [3]
Operating: 58 metric ton = 63.8 tons (Allowable Stress(AS) [2])
Inventory: 24.5 metric ton = 27.0 tons (Allowable Stress(AS) [2])
Appraisal
Structural: Equal to present minimum criteria [6]
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: July 2020 [0720] 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: 2.3 km = 1.4 mi
Traffic
ADT: 3101 (2020) and Trucks: 7%
Future ADT: 5600 (In 2040
)
