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North Railroad Ave over MILTON CREEK

Map

Coordinates:
+45.84040, -122.81400
45°50'25" N, 122°48'50" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:North Railroad Ave over MILTON CREEK
Structure number:21280 000000000
Location:Port of St. Helens
Purpose:Carries highway over waterway
Route classification:Local (Urban) [19]
Length of largest span:129.9 ft. [39.6 m]
Total length:170.0 ft. [51.8 m]
Roadway width between curbs:14.1 ft. [4.3 m]
Deck width edge-to-edge:14.1 ft. [4.3 m]
Owner:Other Local Agencies [25]
Year built:1999
Historic significance:Historical significance is not determinable at this time [4]
Design load:M 18 / H 20 [4]
Main span material:Steel [3]
Main span design:Truss - Thru [10]
Deck type:Wood or Timber [8]
Wearing surface:Wood or Timber [7]

Latest Available Inspection: September 2017

Good/Fair/Poor Condition:Fair
Status:Posted for load [P]
Average daily traffic:50 [as of 2010]
Truck traffic:1% of total traffic
Deck condition:Fair [5 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Fair [5 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Equal to present minimum criteria [6]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Bank is beginning to slump. River control devices and embankment protection have widespread minor damage. There is minor stream bed movement evident. Debris is restricting the channel slightly. [6]
Scour condition:Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Sufficiency rating:47.4

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
September 2017FairFairSatisfactoryFair5047.4
July 2015FairFairSatisfactoryFair5047.4
June 2013FairSatisfactorySatisfactoryFair5048.4
June 2011FairSatisfactorySatisfactoryFair5048.4
February 2010FairSatisfactorySatisfactoryFair5048.4

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Steel Stringerlinear ft.1,47201,47200
Steel Protective Coatingsq. ft.7,82407,82400
Steel Trusslinear ft.247024700
Steel Protective Coatingsq. ft.2,22002221,776222
Steel Floor Beamlinear ft.540054000
Steel Protective Coatingsq. ft.4,53503,6289070
Steel Pin or Pin & Hangar Assemblyeach31215615600
Steel Protective Coatingsq. ft.624062400
Substructure
Steel Abutmentlinear ft.2802800
Steel Pier Caplinear ft.2828000
Steel Protective Coatingsq. ft.686686000
Deck
Timber Decksq. ft.2,48001,61284424
Bearings
Fixed Bearingeach120912
Steel Protective Coatingsq. ft.6006000