+38.54111, -121.47361
38°32'28" N, 121°28'25" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:12TH AVE over STATE ROUTE 99
Structure number:24 0161
Purpose:Carries highway and pedestrian walkway over highway
Route classification:Minor Arterial (Urban) [16]
Length of largest span:73.2 ft. [22.3 m]
Total length:214.9 ft. [65.5 m]
Roadway width between curbs:51.8 ft. [15.8 m]
Deck width edge-to-edge:64.0 ft. [19.5 m]
Vertical clearance below bridge:14.8 ft. [4.5 m]
Skew angle:
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:4
Main spans material:Concrete continuous [2]
Main spans design:Box beam or girders - Multiple [05]
Deck type:Concrete Cast-in-Place [1]

Latest Available Inspection: February 2016 

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:21,000 [as of 1998]
Truck traffic:2% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Basically intolerable requiring high priority of replacement [2]
Underclearances appraisal:Basically intolerable requiring high priority of corrrective action [3]
Roadway alignment appraisal:Better than present minimum criteria [7]
Scour condition:Bridge not over waterway. [N]
Operating rating:46.6 tons [42.4 metric tons]
Inventory rating:36.0 tons [32.7 metric tons]
Sufficiency rating:70.0
Recommended work:Other structural work, including hydraulic replacements. [38]
Estimated cost of work:$2,123,000

Previous Inspections 

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
February 201670.0FairGoodSatisfactoryGoodFO21000
February 201266.8PoorPoorSatisfactoryGoodSD21000
March 201064.6PoorSeriousSatisfactoryGoodSD21000
July 200864.6PoorSeriousSatisfactoryGoodSD21000
May 200664.6PoorSeriousSatisfactoryGoodSD21000
February 200457.0FairFairFairGoodFO21000
February 200258.1FairSatisfactoryFairGoodFO21000
July 199860.3FairSatisfactoryFairGoodFO21000
November 199660.3FairSatisfactoryFairSatisfactoryFO21000
August 199471.8FairSatisfactoryGoodGoodFO21000
November 199271.8FairSatisfactoryGoodGoodFO21000
March 199071.8GoodGoodGoodGoodFO21000