+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]
Wearing surface:Bituminous [6]

Latest Available Inspection: February 2016 

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]
Evaluation:Functionally obsolete [2]
Sufficiency rating:70.0
Recommended work:Other structural work, including hydraulic replacements. [38]
Estimated cost of work:$2,123,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
February 201670.0Functionally obsoleteGoodSatisfactoryGood21000
February 201266.8Structurally deficientPoorSatisfactoryGood21000
March 201064.6Structurally deficientSeriousSatisfactoryGood21000
July 200864.6Structurally deficientSeriousSatisfactoryGood21000
May 200664.6Structurally deficientSeriousSatisfactoryGood21000
February 200457.0Functionally obsoleteFairFairGood21000
February 200258.1Functionally obsoleteSatisfactoryFairGood21000
July 199860.3Functionally obsoleteSatisfactoryFairGood21000
November 199660.3Functionally obsoleteSatisfactoryFairSatisfactory21000
August 199471.8Functionally obsoleteSatisfactoryGoodGood21000
November 199271.8Functionally obsoleteSatisfactoryGoodGood21000
March 199071.8Functionally obsoleteGoodGoodGood21000