MD 313 over CHOPTANK RIVER

Map

Coordinates:
+38.97672, -75.80152
38°58'36" N, 75°48'05" W

Source: National Bridge Inventory. Information not verified; use at your own risk.

Name:	MD 313 over CHOPTANK RIVER
Structure number:	100000050005010
Location:	0.32 MILE NORTH OF MD 314
Purpose:	Carries highway over waterway
Route classification:	Minor Arterial (Rural) `[06]`
Length of largest span:	52.2 ft. `[15.9 m]`
Total length:	263.1 ft. `[80.2 m]`
Roadway width between curbs:	35.4 ft. `[10.8 m]`
Deck width edge-to-edge:	38.7 ft. `[11.8 m]`
Skew angle:	26°
Owner:	State Highway Agency `[01]`
Year built:	1949
Year reconstructed:	1987
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:	5
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]`

Good/Fair/Poor Condition:	Fair
Status:	Open, no restriction `[A]`
Average daily traffic:	7,160 `[as of 2009]`
Truck traffic:	8% of total traffic
Deck condition:	Satisfactory `[6 out of 9]`
Superstructure condition:	Fair `[5 out of 9]`
Substructure condition:	Fair `[5 out of 9]`
Structural appraisal:	Somewhat better than minimum adequacy to tolerate being left in place as is `[5]`
Deck geometry appraisal:	Meets minimum tolerable limits to be left in place as is `[4]`
Water adequacy appraisal:	Superior to present desirable criteria `[9]`
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:	80.7

Date	Condition	Deck	Superstructure	Substructure	ADT	Suff. Rating
January 2018	Fair	Satisfactory	Fair	Fair	7160	80.7
January 2016	Fair	Satisfactory	Fair	Fair	7160	80.7
January 2014	Fair	Satisfactory	Fair	Fair	7160	80.7
January 2012	Fair	Satisfactory	Fair	Fair	7160	80.7
January 2010	Fair	Satisfactory	Satisfactory	Fair	7320	80.7
January 2008	Fair	Satisfactory	Satisfactory	Fair	9325	80.3
November 2005	Fair	Satisfactory	Satisfactory	Satisfactory	9325	91.6
November 2003	Fair	Good	Good	Satisfactory	9325	91.6
November 2001	Fair	Good	Good	Satisfactory	4975	91.2
April 2000	Fair	Good	Good	Fair	4975	80.1
April 1998	Fair	Good	Good	Fair	4975	80.1
April 1996	Fair	Good	Good	Fair	4700	80.1
April 1994	Fair	Good	Satisfactory	Good	4700	91.2
April 1992	Fair	Very Good	Satisfactory	Satisfactory	4700	91.2
March 1990	Fair	Very Good	Satisfactory	Good	4700	88.3