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Nearby Bridges in NBI 2021: 1


SR 9 over DRAINAGE CHANNEL (Route: 9)
Num:0003011A0000000x
Open: no restriction [A]
Built: 1945, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.4 Miles (0.6 Kilometers)

Bridge Type
Main Span(s): Concrete continuous [2] Slab [01]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Bituminous [6]
Bridge Dimensions
Length: 20.7 m = 67.9 ft
Main Spans: 4 at 5.5 m = 18.0 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 11.1 m = 36.4 ft (2 Lanes) and Out-To-Out: 12.1 m = 39.7 ft for a 8.5 m = 27.9 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
5.9 N SKAGIT CO
Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: MS 13.5 / HS 15 [3]
Operating: 48.1 metric ton = 52.9 tons (Load Factor(LF) [1])
Inventory: 29 metric ton = 31.9 tons (Load Factor(LF) [1])
Appraisal
Structural: Better than present minimum criteria [7]
Deck Geometry: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Equal to present desirable criteria [8] and Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Inspections
Date: August 2018 [0818] and Frequency: 24
Future Work
Work Needed: Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Bridge Detour: 6.9 km = 4.3 mi
Traffic
ADT: 2672 (2019) and Trucks: 21%
Future ADT: 3836 (In 2039 )

Special Bridge Conditions Legend: R - Former location of relocated bridge. ! - At risk for demolition or destruction. X - Confirmed demolished or collapsed. S  - Dismantled and/or in storage. L -  Severe loss of historic integrity due to alteration.

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