INSELRUHE over NASHUA CANAL

Map 

Facts 

Name:	INSELRUHE over NASHUA CANAL
Structure number:	825180801060B01
Location:	BELLE ISLE
Purpose:	Carries highway and pedestrian walkway over waterway
Route classification:	Local (Urban) [19]
Length of largest span:	44.6 ft. [13.6 m]
Total length:	44.6 ft. [13.6 m]
Roadway width between curbs:	29.9 ft. [9.1 m]
Deck width edge-to-edge:	43.6 ft. [13.3 m]
Owner:	City or Municipal Highway Agency [04]
Year built:	1999
Historic significance:	Bridge is on the National Register of Historic Places [1]
Design load:	MS 18 / HS 20 [5]
Main span material:	Prestressed concrete [5]
Main span design:	Box beam or girders - Multiple [05]
Deck type:	Concrete Cast-in-Place [1]

2010 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	308 [as of 2005]
Truck traffic:	3% of total traffic
Deck condition:	Excellent [9 out of 9]
Superstructure condition:	Excellent [9 out of 9]
Substructure condition:	Excellent [9 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:	Countermeasures have been installed to mitigate an existing problem with scour. [7]
Operating rating:	75.9 tons [69.0 metric tons]
Inventory rating:	36.0 tons [32.7 metric tons]
Sufficiency rating:	95.0

2000 Inspection 

Status:	Bridge closed to all traffic [K]
Average daily traffic:	1,200 [as of 1990]
Truck traffic:	3% of total traffic
Deck condition:	Very Good [8 out of 9]
Superstructure condition:	Very Good [8 out of 9]
Substructure condition:	Very Good [8 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:	Countermeasures have been installed to mitigate an existing problem with scour. [7]
Operating rating:	36.0 tons [32.7 metric tons]
Inventory rating:	36.0 tons [32.7 metric tons]
Sufficiency rating:	89.4
Recommended work:	Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]

1992 Inspection 

Status:	Posted for load [P]
Average daily traffic:	12,000 [as of 1979]
Deck condition:	Poor [4 out of 9]
Superstructure condition:	Poor [4 out of 9]
Substructure condition:	Poor [4 out of 9]
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]
Operating rating:	19.8 tons [18.0 metric tons]
Inventory rating:	6.2 tons [5.6 metric tons]
Evaluation:	Structurally deficient [1]
Sufficiency rating:	4.0
Recommended work:	Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:	$271,000

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