Volta Road over San Luis Canal


+37.03755, -120.92710
37°02'15" N, 120°55'38" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:Volta Road over San Luis Canal
Structure number:39C0258
Location:1.6 mi S of SR 152
Purpose:Carries highway over waterway
Route classification:Local (Rural) [09]
Length of largest span:76.1 ft. [23.2 m]
Total length:316.0 ft. [96.3 m]
Roadway width between curbs:27.2 ft. [8.3 m]
Deck width edge-to-edge:27.9 ft. [8.5 m]
Skew angle:32°
Owner:Bureau of Reclamation [69]
Year built:1968
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:Prestressed concrete [5]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: May 2016 

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:50 [as of 2014]
Truck traffic:10% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Better than present minimum criteria [7]
Deck geometry appraisal:Equal to present minimum criteria [6]
Water adequacy appraisal:Superior to present desirable criteria [9]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:There are no noticeable or noteworthy deficiencies which affect the condition of the channel. [9]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:61.3 tons [55.7 metric tons]
Inventory rating:47.4 tons [43.1 metric tons]
Sufficiency rating:91.5

Previous Inspections 

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
May 201691.5GoodGoodGoodGood-50