Dolphin Road over SKIPANON RIVER


+46.13273, -123.92078
46°07'58" N, 123°55'15" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:Dolphin Road over SKIPANON RIVER
Structure number:07C05 090400070
Location:021 MI S OF WARRENTON
Purpose:Carries highway over waterway
Route classification:Local (Rural) [09]
Length of largest span:20.0 ft. [6.1 m]
Total length:61.0 ft. [18.6 m]
Roadway width between curbs:18.7 ft. [5.7 m]
Deck width edge-to-edge:20.0 ft. [6.1 m]
Owner:County Highway Agency [02]
Year built:1963
Historic significance:Historical significance is not determinable at this time [4]
Number of main spans:3
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 2015

Good/Fair/Poor Condition:Fair
Status:Posted for load [P]
Average daily traffic:183 [as of 2010]
Truck traffic:10% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Basically intolerable requiring high priority of corrrective action [3]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Better than present minimum criteria [7]
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 with "unknown" foundation that has not been evaluated for scour. [U]
Operating rating:35.0 tons [31.8 metric tons]
Inventory rating:26.0 tons [23.6 metric tons]
Sufficiency rating:69.5
Recommended work:Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Estimated cost of work:$313,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
April 201569.5FairGoodGoodSatisfactoryFO183
April 201369.5GoodGoodGoodGoodFO183
June 201169.5GoodGoodGoodGoodFO183
May 200944.5PoorFairSatisfactoryPoorSD183
November 200844.5PoorFairSatisfactoryPoorSD183
September 200744.4PoorFairSatisfactoryPoorSD176
September 200457.1FairFairSatisfactoryFairFO176
September 200257.1FairFairSatisfactoryFairFO175
September 200057.1FairFairSatisfactoryFairFO170
June 199957.1FairFairSatisfactoryFairFO170
August 199844.1PoorFairSatisfactoryPoorSD170
May 199646.4PoorGoodGoodPoorSD170
April 199445.1PoorGoodGoodPoorSD170
March 199266.3FairVery GoodVery GoodSatisfactoryFO170
February 199066.3FairGoodGoodSatisfactoryFO150

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Timber Girder/Beamlinear ft.610610000
Timber Abutmentlinear ft.4040000
Steel Pileeach20200
Timber Pileeach1410220
Timber Pier Caplinear ft.4036400
Timber Decksq. ft.1,2201,220000
Bridge Rail
Timber Bridge Raillinear ft.122122000