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KNIGHTON ROAD over INTERSTATE 5

Map

Coordinates:
+40.50500, -122.33667
40°30'18" N, 122°20'12" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:KNIGHTON ROAD over INTERSTATE 5
Structure number:06 0134
Location:02-SHA-005-R9.77
Purpose:Carries highway and pedestrian walkway over highway
Route classification:Local (Urban) [19]
Length of largest span:88.3 ft. [26.9 m]
Total length:258.9 ft. [78.9 m]
Roadway width between curbs:32.2 ft. [9.8 m]
Deck width edge-to-edge:40.4 ft. [12.3 m]
Vertical clearance below bridge:16.4 ft. [5.0 m]
Skew angle:27°
Owner:State Highway Agency [01]
Year built:1965
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:Integral Concrete (separate non-modified layer of concrete added to structural deck) [2]

Latest Available Inspection: October 2016

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:7,500 [as of 2012]
Truck traffic:2% 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:Equal to present minimum criteria [6]
Deck geometry appraisal:Meets minimum tolerable limits to be left in place as is [4]
Underclearances appraisal:Meets minimum tolerable limits to be left in place as is [4]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:38.5 tons [35.0 metric tons]
Inventory rating:29.6 tons [26.9 metric tons]
Sufficiency rating:81.6

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
October 201681.6GoodGoodGoodGood-7500
October 201484.6GoodVery GoodVery GoodVery Good-10219
January 201184.6FairSatisfactoryGoodGood-10219
October 200685.6GoodGoodGoodGood-10219
October 200483.5GoodGoodGoodGoodFO10219
October 200283.5GoodGoodGoodGoodFO10219
November 200183.5GoodGoodGoodGoodFO10219
July 199883.5GoodGoodGoodGoodFO10219
February 199771.5FairSatisfactoryFairSatisfactoryFO10219
November 199471.8FairSatisfactoryFairVery GoodFO10219
November 199271.8FairSatisfactoryFairVery GoodFO10219
June 199171.8FairGoodFairVery GoodFO10219