USH 51 over MANITOWISH RIVER

Map 

Facts 

Name:	USH 51 over MANITOWISH RIVER
Structure number:	B63000300000000
Location:	1.2M N JCT CTH W
Purpose:	Carries highway over waterway
Route classification:	Principal Arterial - Other (Rural) [02]
Length of largest span:	69.9 ft. [21.3 m]
Total length:	185.7 ft. [56.6 m]
Roadway width between curbs:	32.2 ft. [9.8 m]
Deck width edge-to-edge:	34.1 ft. [10.4 m]
Owner:	State Highway Agency [01]
Year built:	1956
Year reconstructed:	1992
Historic significance:	Bridge is not eligible for the National Register of Historic Places [5]
Design load:	M 18 / H 20 [4]
Number of main spans:	3
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]

2010 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	3,088 [as of 2007]
Truck traffic:	10% of total traffic
Deck condition:	Satisfactory [6 out of 9]
Superstructure condition:	Satisfactory [6 out of 9]
Substructure condition:	Satisfactory [6 out of 9]
Scour condition:	Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:	57.0 tons [51.8 metric tons]
Inventory rating:	33.9 tons [30.8 metric tons]
Sufficiency rating:	77.9

2000 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	2,500 [as of 1993]
Truck traffic:	10% of total traffic
Deck condition:	Good [7 out of 9]
Superstructure condition:	Satisfactory [6 out of 9]
Substructure condition:	Good [7 out of 9]
Channel protection:	Banks are protected or well vegetated. River control devices such as spur dikes and embankment protection are not required or are in a stable condition. [8]
Scour condition:	Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:	57.0 tons [51.8 metric tons]
Inventory rating:	33.9 tons [30.8 metric tons]
Sufficiency rating:	78.4

1992 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	1,950 [as of 1988]
Deck condition:	Poor [4 out of 9]
Superstructure condition:	Satisfactory [6 out of 9]
Substructure condition:	Satisfactory [6 out of 9]
Channel protection:	Banks are protected or well vegetated. River control devices such as spur dikes and embankment protection are not required or are in a stable condition. [8]
Scour condition:	Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:	42.6 tons [38.7 metric tons]
Inventory rating:	28.7 tons [26.1 metric tons]
Evaluation:	Structurally deficient [1]
Sufficiency rating:	67.4
Recommended work:	Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:	$323,000

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