9TH St. over River Frontage


+46.19087, -123.83366
46°11'27" N, 123°50'01" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:9TH St. over River Frontage
Structure number:21227 000000000
Location:Astoria's water Front
Purpose:Carries highway over waterway
Route classification:Local (Urban) [19]
Total length:33.1 ft. [10.1 m]
Roadway width between curbs:41.3 ft. [12.6 m]
Deck width edge-to-edge:41.3 ft. [12.6 m]
Owner:City or Municipal Highway Agency [04]
Year built:1961
Historic significance:Historical significance is not determinable at this time [4]
Number of main spans:2
Main spans material:Wood or timber [7]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Wood or Timber [8]
Wearing surface:Wood or Timber [7]

Latest Available Inspection: April 2018

Good/Fair/Poor Condition:Poor
Status:Bridge closed to all traffic [K]
Average daily traffic:5 [as of 2010]
Truck traffic:10% of total traffic
Deck condition:Fair [5 out of 9]
Superstructure condition:Serious [3 out of 9]
Substructure condition:Critical [2 out of 9]
Deck geometry appraisal:Superior to present desirable criteria [9]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Bank protection is in need of minor repairs. River control devices and embankment protection have a little minor damage. Banks and/or channel have minor amounts of drift. [7]
Scour condition:Bridge is scour critical; field review indicates that extensive scour has occurred at bridge foundations. [2]
Sufficiency rating:39.8
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$220,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
April 2018PoorFairSeriousCritical539.8
April 2017PoorPoorSeriousCritical537.8
April 2016PoorPoorSeriousCritical537.8
April 2015PoorSatisfactorySeriousCritical540.9
April 2014PoorSatisfactorySeriousCritical540.9
April 2013PoorSatisfactorySeriousCritical540.9
November 2011PoorSatisfactorySeriousCritical540.9
September 2010PoorSatisfactorySeriousCritical540.9
August 2009PoorSatisfactorySeriousCritical540.9

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Timber Girder/Beamlinear ft.785335050400
Reinforced Concrete Decksq. ft.1,11101,097140
Timber Columneach125331
Reinforced Concrete Abutmentlinear ft.4100041
Reinforced Concrete Pile Cap/Footinglinear ft.3333000
Timber Pileeach3471485
Timber Pier Caplinear ft.210196941
Timber Decksq. ft.2751958000
Bridge Rail
Timber Bridge Raillinear ft.1660100