Share:

MD 471 over ST MARYS RIVER

Map

Coordinates:
+38.24185, -76.50378
38°14'31" N, 76°30'14" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:MD 471 over ST MARYS RIVER
Structure number:100000180029010
Location:0.36 MILE NORTH OF MD 5
Purpose:Carries highway over waterway
Route classification:Collector (Urban) [17]
Length of largest span:22.0 ft. [6.7 m]
Total length:48.9 ft. [14.9 m]
Roadway width between curbs:26.9 ft. [8.2 m]
Deck width edge-to-edge:30.8 ft. [9.4 m]
Skew angle:18°
Owner:State Highway Agency [01]
Year built:1932
Historic significance:Bridge is possibly eligible for the National Register of Historic Places [3]
Number of main spans:2
Main spans material:Concrete [1]
Main spans design:Tee beam [04]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: December 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:4,242 [as of 2009]
Truck traffic:8% of total traffic
Deck condition:Satisfactory [6 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:Basically intolerable requiring high priority of corrrective action [3]
Water adequacy appraisal:Equal to present minimum criteria [6]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Bank is beginning to slump. River control devices and embankment protection have widespread minor damage. There is minor stream bed movement evident. Debris is restricting the channel slightly. [6]
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]
Sufficiency rating:76.4

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
December 2018FairSatisfactorySatisfactorySatisfactory424276.4
December 2016FairSatisfactorySatisfactorySatisfactory424276.4
February 2015FairSatisfactorySatisfactorySatisfactory424276.4
January 2013FairSatisfactorySatisfactorySatisfactory424274.3
December 2010FairSatisfactorySatisfactorySatisfactory424274.3
December 2008FairSatisfactorySatisfactorySatisfactory421274.3
January 2007FairSatisfactorySatisfactorySatisfactory395074.6
January 2005FairSatisfactorySatisfactorySatisfactory395074.6
January 2003FairSatisfactorySatisfactorySatisfactory122584.8
January 2001FairSatisfactorySatisfactorySatisfactory122584.8
January 1999FairSatisfactorySatisfactorySatisfactory122584.8
January 1997FairSatisfactorySatisfactorySatisfactory122584.8
January 1995FairSatisfactorySatisfactorySatisfactory122585.4
October 1993FairGoodSatisfactorySatisfactory122585.4
December 1991FairGoodSatisfactorySatisfactory122582.4