OR 47 (HWY 102) over Nehalem River


+45.89940, -123.15602
45°53'58" N, 123°09'22" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:OR 47 (HWY 102) over Nehalem River
Structure number:03145A102 05768
Location:5.0 MI N VERNONIA
Purpose:Carries highway over waterway
Route classification:Major Collector (Rural) [07]
Length of largest span:80.1 ft. [24.4 m]
Total length:210.0 ft. [64.0 m]
Roadway width between curbs:25.9 ft. [7.9 m]
Deck width edge-to-edge:30.8 ft. [9.4 m]
Owner:State Highway Agency [01]
Year built:1959
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Number of main spans:3
Main spans material:Concrete continuous [2]
Main spans design:Box beam or girders - Multiple [05]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: May 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:1,500 [as of 2017]
Truck traffic:31% of total traffic
Deck condition:Satisfactory [6 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:Meets minimum tolerable limits to be left in place as is [4]
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:69.8

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
May 2018FairSatisfactorySatisfactoryFair150069.8
May 2016FairSatisfactorySatisfactoryFair170069.4
May 2014FairSatisfactorySatisfactoryFair170063.3
May 2012FairSatisfactorySatisfactoryGood170075.7
May 2010FairGoodSatisfactoryGood160076.1
May 2008FairGoodSatisfactoryGood160076.1
May 2006FairSatisfactorySatisfactoryGood160078.1
May 2004FairSatisfactoryFairGood170066.3
May 2002FairSatisfactoryGoodVery Good170078.7
May 2000GoodVery GoodGoodVery Good150079.6
May 1998GoodVery GoodGoodVery Good150079.6
May 1996GoodVery GoodGoodVery Good140080.0
May 1994GoodVery GoodGoodVery Good125080.7
May 1992GoodVery GoodGoodVery Good125080.7
May 1990GoodGoodGoodVery Good120077.0

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Reinforced Concrete Closed Web/Box Girderlinear ft.42019622310
Reinforced Concrete Top Flangesq. ft.6,4756,4532020
Concrete Protective Coatingsq. ft.5,4605,460000
Reinforced Concrete Columneach21100
Reinforced Concrete Abutmentlinear ft.6262000
Reinforced Concrete Pile Cap/Footinglinear ft.1001000
Reinforced Concrete Pier Caplinear ft.6262000
Other Jointlinear ft.62501200
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.42029412600