US 101 SB over I 405 & N101-S405 RAMP


+34.16167, -118.46667
34°09'42" N, 118°28'00" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:US 101 SB over I 405 & N101-S405 RAMP
Structure number:53 1146L
Purpose:Carries highway over highway
Route classification:Principal Arterial - Other Freeways or Expressways (Urban) [12]
Length of largest span:87.9 ft. [26.8 m]
Total length:200.1 ft. [61.0 m]
Roadway width between curbs:64.0 ft. [19.5 m]
Deck width edge-to-edge:67.3 ft. [20.5 m]
Vertical clearance below bridge:14.8 ft. [4.5 m]
Skew angle:34°
Owner:State Highway Agency [01]
Year built:1958
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:3
Main spans material:Concrete continuous [2]
Main spans design:Box beam or girders - Multiple [05]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: April 2016 

Status:Open, no restriction [A]
Average daily traffic:229,750 [as of 2009]
Truck traffic:10% of total traffic
Deck condition:Very Good [8 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Very Good [8 out of 9]
Structural appraisal:Better than present minimum criteria [7]
Deck geometry appraisal:Meets minimum tolerable limits to be left in place as is [4]
Underclearances appraisal:Basically intolerable requiring high priority of corrrective action [3]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:49.9 tons [45.4 metric tons]
Inventory rating:35.3 tons [32.1 metric tons]
Evaluation:Functionally obsolete [2]
Sufficiency rating:79.0
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$2,103,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
April 201679.0Functionally obsoleteVery GoodGoodVery Good229750
April 201479.0Functionally obsoleteGoodGoodGood229750
April 201278.0Functionally obsoleteFairGoodGood154000
June 201078.0Functionally obsoleteFairGoodGood154000
April 200878.0Functionally obsoleteFairGoodGood154000
April 200678.0Functionally obsoleteFairGoodGood154000
March 200479.0Functionally obsoleteSatisfactoryGoodGood154000
April 200279.0Functionally obsoleteSatisfactoryGoodGood152050
May 200079.0Functionally obsoleteSatisfactoryGoodGood152050
20000.0Not applicable---93000
April 199879.0Functionally obsoleteSatisfactoryGoodGood152050
April 199681.9Functionally obsoleteGoodGoodGood154000
August 199481.9Functionally obsoleteGoodGoodGood154000
August 199283.2Functionally obsoleteGoodGoodGood136600