IS 270 E over RT H


+38.76693, -90.18240
38°46'01" N, 90°10'57" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:IS 270 E over RT H
Structure number:823
Location:S 114 T 47 N R 7 E
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:63.0 ft. [19.2 m]
Total length:217.9 ft. [66.4 m]
Roadway width between curbs:44.3 ft. [13.5 m]
Deck width edge-to-edge:46.9 ft. [14.3 m]
Vertical clearance below bridge:13.1 ft. [4.0 m]
Skew angle:
Owner:State Highway Agency [01]
Year built:1962
Year reconstructed:1999
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:4
Main spans material:Steel continuous [4]
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: July 2017

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:26,901 [as of 2016]
Truck traffic:18% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Very Good [8 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:Meets minimum tolerable limits to be left in place as is [4]
Roadway alignment appraisal:Better than present minimum criteria [7]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:94.7

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
July 2017GoodGoodVery GoodGood2690194.7
July 2015GoodGoodVery GoodGood2657894.7
September 2013GoodGoodVery GoodGood2622696.8
September 2011GoodGoodVery GoodGood2814595.7
September 2009GoodGoodVery GoodGood2908195.6
September 2007GoodGoodVery GoodGood2491695.8
August 2005GoodGoodVery GoodGood2447995.8
August 2004GoodGoodVery GoodVery Good2428595.9
August 2002GoodGoodVery GoodVery Good2438496.9
August 2001GoodGoodVery GoodVery Good2443396.9

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Steel Girder/Beamlinear ft.1,2771,2621500
Steel Protective Coatingsq. ft.11,3973,7607,63700
Reinforced Concrete Decksq. ft.10,2407,9252,31500
Reinforced Concrete Columneach99000
Reinforced Concrete Abutmentlinear ft.1281022600
Reinforced Concrete Pier Caplinear ft.138133500
Elastomeric Bearingeach1818000
Enclosed/Concealed Bearingeach1212000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.469046900