Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:MD 28 EB over ROCK CREEK
Structure number:100000150092013
Location:0.31 M E OF AVERY ROAD
Purpose:Carries highway over waterway
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:80.1 ft. [24.4 m]
Total length:319.9 ft. [97.5 m]
Roadway width between curbs:33.1 ft. [10.1 m]
Deck width edge-to-edge:36.1 ft. [11.0 m]
Skew angle:25°
Owner:State Highway Agency [01]
Year built:1970
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: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: June 2015

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:21,579 [as of 2012]
Truck traffic:8% of total traffic
Deck condition:Fair [5 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Bank protection is in need of minor repairs. River control devices and embankment protection have a little minor damage. Banks and/or channel have minor amounts of drift. [7]
Pier/abutment protection:None present but re-evaluation suggested [5]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inventory rating:64.4 tons [58.5 metric tons]
Sufficiency rating:86.4

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
June 201586.4FairFairSatisfactorySatisfactory-21579
June 201386.4FairFairSatisfactorySatisfactory-21579
May 201178.9FairFairSatisfactorySatisfactory-46090
May 200985.4FairFairSatisfactorySatisfactory-24790
May 200787.9FairFairSatisfactorySatisfactory-16613
June 200587.9FairFairSatisfactorySatisfactory-16613
December 200387.9FairFairSatisfactorySatisfactory-16613
November 200182.0FairFairSatisfactorySatisfactory-36000
September 199983.1FairSatisfactorySatisfactorySatisfactory-36000
September 199783.1FairGoodSatisfactoryGood-36000
September 199582.4FairSatisfactorySatisfactorySatisfactory-36000
September 199382.4FairSatisfactorySatisfactorySatisfactory-36000
November 199181.2FairSatisfactorySatisfactorySatisfactory-36000

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Steel Girder/Beamlinear ft.1,5754051,17000
Steel Protective Coatingsq. ft.13,926012,6761,2500
Reinforced Concrete Decksq. ft.11,52010,9752003450
Reinforced Concrete Pier Walllinear ft.3333000
Reinforced Concrete Abutmentlinear ft.83304580
Reinforced Concrete Pier Caplinear ft.1206050100
Pourable Jointlinear ft.160000160
Movable Bearingeach2002000
Steel Protective Coatingsq. ft.412110100
Fixed Bearingeach2002000
Steel Protective Coatingsq. ft.41211280
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.630630000
Reinforced Concrete Bridge Raillinear ft.63059820120