N405-E&W118 CONN over I 405, SR 118, CHATSWRTH


+34.26191, -118.47170
34°15'43" N, 118°28'18" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:N405-E&W118 CONN over I 405, SR 118, CHATSWRTH
Structure number:53 2216G
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:194.9 ft. [59.4 m]
Total length:3753.1 ft. [1143.9 m]
Roadway width between curbs:62.3 ft. [19.0 m]
Deck width edge-to-edge:65.9 ft. [20.1 m]
Vertical clearance below bridge:16.4 ft. [5.0 m]
Skew angle:99°
Owner:State Highway Agency [01]
Year built:1977
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:9
Main spans material:Prestressed concrete continuous [6]
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: October 2017

Good/Fair/Poor Condition:Poor
Status:Open, no restriction [A]
Average daily traffic:40,000 [as of 2014]
Truck traffic:5% of total traffic
Deck condition:Poor [4 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:Superior to present desirable criteria [9]
Underclearances appraisal:Equal to present minimum criteria [6]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:91.1

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
October 2017PoorPoorGoodGood4000091.1
October 2015GoodVery GoodVery GoodVery Good4000094.3
October 2013GoodGoodGoodGood4000094.3
October 2011GoodGoodGoodGood4000094.3
October 2009GoodGoodGoodGood4000090.1
March 2008GoodGoodGoodGood4000090.1
August 2006GoodGoodGoodGood4000090.1
January 2004FairSatisfactoryGoodGood4000090.1
December 2001FairSatisfactoryGoodGood4000090.1
June 2000FairSatisfactoryGoodGood4000090.1
January 1996GoodVery GoodVery GoodVery Good4000077.1
April 1992GoodVery GoodVery GoodVery Good4000077.1
March 1990GoodVery GoodVery GoodVery Good4000077.1

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Prestressed Concrete Closed Web/Box Girderlinear ft.530530000
Reinforced Concrete Closed Web/Box Girderlinear ft.775775000
Reinforced Concrete Top Flangesq. ft.14,6605,66009,0000
Reinforced Concrete Columneach2929000
Reinforced Concrete Pier Walllinear ft.4444000
Reinforced Concrete Pileeach11000
Strip Seal Jointlinear ft.130130000
Pourable Jointlinear ft.5555000
Elastomeric Bearingeach1616000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.2,3002,300000