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Nearby Bridges in NBI 2021: 1


US101 (HWY 9) over Columbia River & Hwy 92 (Route: 101)
Num:07949F00900341x
Open: no restriction [A]
Built: 1966, Reconstructed: N/A [0000]
Historic: Bridge is possibly eligible for the NRHP. [3]

Google Streetview (If Available)

Rough Distance: 0.3 Miles (0.5 Kilometers)

Bridge Type
Main Span(s): Steel [3] Truss - Deck [09]
Approach Span(s): Concrete [1] Mixed types [20]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Monolithic Concrete (concurrently placed with structural deck) [1]
Bridge Dimensions
Length: 664.9 m = 2181.5 ft
Main Spans: 1 at 92.7 m = 304.1 ft
Approach Spans: 30
Skew: 0
Width, Roadway: 8.5 m = 27.9 ft (2 Lanes) and Out-To-Out: 10.1 m = 33.1 ft for a 8.5 m = 27.9 ft approaching roadway.
Vertical Clearance: 30.18 m = 99.0 ft and Navigational Clearance: 60.4 m = 198.2 ft
Location
Astoria [03150]: Clatsop County [007], Oregon [41]
Owned by State Highway Agency [01], DOT District: 1
Oregon approach
Condition
Deck: Fair [5]
Superstructure: Satisfactory [6]
Substructure: Satisfactory [6]
Loading
Design: MS 18 / HS 20 [5]
Operating: 17.5 metric ton = 19.3 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Inventory: 13.6 metric ton = 15.0 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Appraisal
Structural: Basically intolerable requiring high priority of corrrective action [3]
Deck Geometry: Meets minimum tolerable limits to be left in place as is [4]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Superior to present desirable criteria [9] and Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Inspections
Date: October 1999 [1099] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 0 km = 0.0 mi
Traffic
ADT: 21600 (2018) and Trucks: 12%
Future ADT: 24700 (In 2038 )

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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