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ROUTE 20 over LOWER CLEAR CREEK

Map

Coordinates:
+40.58564, -122.55117
40°35'08" N, 122°33'04" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:ROUTE 20 over LOWER CLEAR CREEK
Structure number:8750002P0000000
Location:1.5 miles SW of Hwy 299 (
Purpose:Carries highway over waterway
Route classification:Local (Rural) [09]
Length of largest span:80.1 ft. [24.4 m]
Total length:149.0 ft. [45.4 m]
Roadway width between curbs:11.2 ft. [3.4 m]
Deck width edge-to-edge:12.1 ft. [3.7 m]
Owner:National Park Service [66]
Year built:1955
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:Steel [3]
Main spans design:Truss - Thru [10]
Deck type:Wood or Timber [8]
Wearing surface:Wood or Timber [7]

Latest Available Inspection: July 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:20 [as of 2013]
Truck traffic:1% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Meets minimum tolerable limits to be left in place as is [4]
Deck geometry appraisal:Basically intolerable requiring high priority of corrrective action [3]
Water adequacy appraisal:Superior to present desirable criteria [9]
Roadway alignment appraisal:Equal to present minimum criteria [6]
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]
Pier/abutment protection:Navigation protection not required [1]
Scour condition:Bridge foundations determined to be stable for assessed or calculated scour conditions; field review indicates action is required. [4]
Sufficiency rating:45.8
Estimated cost of work:$1,316,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
July 2017FairSatisfactorySatisfactorySatisfactory2045.8
July 2015FairSatisfactorySatisfactorySatisfactory2045.8
July 2013FairGoodSatisfactorySatisfactory2045.8
July 2011FairGoodSatisfactorySatisfactory2045.8
July 2009FairGoodSatisfactorySatisfactory2045.8
July 2007FairSatisfactorySatisfactorySatisfactory2045.8
July 2005FairGoodSatisfactorySatisfactory2045.8
August 2003FairGoodSatisfactorySatisfactory2045.8
August 2001FairGoodGoodSatisfactory2045.8
March 2001GoodVery GoodVery GoodVery Good2032.8