IS 270 over IS 370 AND RAMP 'B'


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:IS 270 over IS 370 AND RAMP 'B'
Structure number:100000150157010
Location:1.53 MILE SOUTH OF MD 117
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:153.9 ft. [46.9 m]
Total length:311.0 ft. [94.8 m]
Roadway width between curbs:208.7 ft. [63.6 m]
Deck width edge-to-edge:212.6 ft. [64.8 m]
Vertical clearance below bridge:17.1 ft. [5.2 m]
Skew angle:
Owner:State Highway Agency [01]
Year built:1990
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:2
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: October 2016

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:216,270 [as of 2009]
Truck traffic:8% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Superior to present desirable criteria [9]
Underclearances appraisal:Better than present minimum criteria [7]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Pier/abutment protection:Navigation protection not required [1]
Scour condition:Bridge not over waterway. [N]
Operating rating:87.8 tons [79.8 metric tons]
Inventory rating:52.4 tons [47.6 metric tons]
Sufficiency rating:98.0

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
October 201698.0FairGoodSatisfactoryGood-216270
September 201498.0FairGoodSatisfactoryGood-216270
November 201298.0FairGoodSatisfactoryGood-216270
August 201098.0FairGoodSatisfactoryGood-216270
August 200898.0GoodGoodGoodGood-207581
August 200698.0GoodGoodGoodGood-202975
July 200498.0GoodGoodGoodGood-202975
July 200298.0GoodGoodGoodGood-159325
June 2000100.0GoodGoodGoodGood-159325
June 1998100.0GoodGoodGoodGood-159325
January 1997100.0GoodGoodGoodGood-159325
January 1995100.0GoodGoodGoodGood-108250
July 1992100.0GoodGoodGoodGood--
August 1990100.0GoodGoodGoodGood--