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

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]`

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

Date	Condition	Deck	Superstructure	Substructure	ADT	Suff. Rating
June 2009	Fair	Satisfactory	Satisfactory	Satisfactory	61036	91.7
June 1999	Fair	Satisfactory	Satisfactory	Good	56272	92.7
March 1991	Fair	Satisfactory	Good	Good	33050	95.5