MD 355 NB over IS 495 IL


+39.01718, -77.10194
39°01'02" N, 77°06'07" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:MD 355 NB over IS 495 IL
Structure number:100000150121010
Location:1.31 MILES S OF MD 547
Purpose:Carries highway and pedestrian walkway over highway
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:124.0 ft. [37.8 m]
Total length:232.0 ft. [70.7 m]
Roadway width between curbs:36.1 ft. [11.0 m]
Deck width edge-to-edge:44.6 ft. [13.6 m]
Vertical clearance below bridge:16.1 ft. [4.9 m]
Skew angle:42°
Owner:State Highway Agency [01]
Year built:1960
Year reconstructed:1983
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:3
Main spans material:Steel [3]
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: November 2015

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:55,020 [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:Satisfactory [6 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Basically intolerable requiring high priority of replacement [2]
Underclearances appraisal:Basically intolerable requiring high priority of replacement [2]
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:41.9 tons [38.1 metric tons]
Inventory rating:25.0 tons [22.7 metric tons]
Sufficiency rating:51.2
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$1,368,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
November 201551.2FairGoodSatisfactorySatisfactoryFO55020
October 201362.0FairGoodSatisfactorySatisfactoryFO55020
August 201162.0FairGoodSatisfactorySatisfactoryFO55020
May 200962.0FairGoodSatisfactorySatisfactoryFO34665
February 200762.0FairGoodSatisfactorySatisfactoryFO31663
February 200562.0FairGoodSatisfactorySatisfactoryFO31663
December 200264.0FairGoodSatisfactorySatisfactoryFO57475
November 200064.0FairGoodSatisfactorySatisfactoryFO57475
February 199964.0FairGoodSatisfactorySatisfactoryFO57475
February 199764.0FairGoodSatisfactoryGoodFO57475
November 199462.0FairGoodSatisfactoryGoodFO57150
October 199262.0FairGoodSatisfactoryGoodFO57150
August 199162.0FairGoodSatisfactoryGood-57150

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Steel Girder/Beamlinear ft.1,6174971,12000
Steel Protective Coatingsq. ft.20,60518,6052,00000
Reinforced Concrete Decksq. ft.10,37110,3591200
Reinforced Concrete Columneach1501140
Reinforced Concrete Abutmentlinear ft.1441202400
Reinforced Concrete Pier Caplinear ft.1421182220
Compression Jointlinear ft.1321122000
Movable Bearingeach1501500
Steel Protective Coatingsq. ft.38281000
Fixed Bearingeach1601600
Steel Protective Coatingsq. ft.3230200
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.479478100