+41.49127, -87.49183
41°29'29" N, 87°29'31" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:US 30 over DYER DITCH
Structure number:008070
Location:01.10 W US 41
Purpose:Carries highway and pedestrian walkway over waterway
Route classification:Principal Arterial - Other Freeways or Expressways (Urban) [12]
Length of largest span:35.1 ft. [10.7 m]
Total length:37.1 ft. [11.3 m]
Roadway width between curbs:68.9 ft. [21.0 m]
Deck width edge-to-edge:83.7 ft. [25.5 m]
Owner:State Highway Agency [01]
Year built:1922
Year reconstructed:1997
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Main span material:Prestressed concrete [5]
Main span 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: July 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:31,823 [as of 2004]
Truck traffic:5% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Fair [5 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Meets minimum tolerable limits to be left in place as is [4]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Banks are protected or well vegetated. River control devices such as spur dikes and embankment protection are not required or are in a stable condition. [8]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Sufficiency rating:76.4

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
July 2018FairSatisfactoryFairFair3182376.4
July 2016FairSatisfactoryFairFair3182377.6
July 2014FairSatisfactoryFairFair3182377.6
August 2012FairSatisfactoryFairFair3182377.6
October 2010FairSatisfactoryFairFair3182377.6
March 2009FairSatisfactoryFairFair3182377.6
March 2007FairFairFairSatisfactory3182380.0
March 2005FairSatisfactorySatisfactorySatisfactory3182389.9
April 2003GoodGoodGoodGood3119990.1
July 2001GoodGoodGoodGood3119990.1
December 1999GoodGoodVery GoodGood2684989.4
December 1997GoodGoodVery GoodGood2684989.4
November 1995GoodGoodVery GoodGood2734286.8
December 1993GoodGoodVery GoodGood2160088.5
January 1992GoodGoodGoodGood2160091.5
November 1989FairGoodSatisfactorySatisfactory2160090.4

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Prestressed Concrete Closed Web/Box Girderlinear ft.836836000
Reinforced Concrete Decksq. ft.3,0913,091000
Reinforced Concrete Abutmentlinear ft.167167000
Pourable Jointlinear ft.167167000
Elastomeric Bearingeach4444000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.7474000