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SR 16 over NALLEY VALLEY VIADUCT

This bridge is no longer in the current National Bridge Inventory database, and has likely been demolished or abandoned.

Map

Coordinates:
+47.23219, -122.46296
47°13'56" N, 122°27'47" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:SR 16 over NALLEY VALLEY VIADUCT
Structure number:0008633C0000000
Location:0.1 N JCT I-5
Purpose:Carries highway over highway and railroad
Route classification:Principal Arterial - Other Freeways or Expressways (Urban) [12]
Length of largest span:120.1 ft. [36.6 m]
Total length:1342.9 ft. [409.3 m]
Roadway width between curbs:51.8 ft. [15.8 m]
Deck width edge-to-edge:55.1 ft. [16.8 m]
Vertical clearance below bridge:40.0 ft. [12.2 m]
Skew angle:99°
Owner:State Highway Agency [01]
Year built:1970
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18+Mod / HS 20+Mod [6]
Number of main spans:15
Main spans material:Prestressed concrete continuous [6]
Main spans design:Tee beam [04]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: June 2009

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:61,036 [as of 2007]
Truck traffic:4% 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:Equal to present minimum criteria [6]
Deck geometry appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Underclearances appraisal:Superior to present desirable criteria [9]
Roadway alignment appraisal:Equal to present minimum criteria [6]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:91.7
Estimated cost of work:$1,164,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
June 2009FairSatisfactorySatisfactorySatisfactory6103691.7
June 1999FairSatisfactorySatisfactoryGood5627292.7
March 1991FairSatisfactoryGoodGood3305095.5