N TROOST AVE over ROCK CR

Map 

Facts 

Name:	N TROOST AVE over ROCK CR
Structure number:	25322
Old structure number:	N061B31 024 (from 1992 edition)
Location:	S 35 T 51 N R 33 W
Purpose:	Carries highway over waterway
Route classification:	Local (Urban) [19]
Length of largest span:	24.9 ft. [7.6 m]
Total length:	26.9 ft. [8.2 m]
Roadway width between curbs:	24.6 ft. [7.5 m]
Deck width edge-to-edge:	26.9 ft. [8.2 m]
Owner:	City or Municipal Highway Agency [04]
Year built:	1920
Year reconstructed:	1993
Historic significance:	Bridge is not eligible for the National Register of Historic Places [5]
Main span material:	Concrete [1]
Main span design:	Tee beam [04]
Deck type:	Concrete Precast Panels [2]
Wearing surface:	Bituminous [6]

2010 Inspection 

Status:	Open, posting recommended but not legally implemented [B]
Average daily traffic:	900 [as of 2008]
Truck traffic:	5% of total traffic
Deck condition:	Very Good [8 out of 9]
Superstructure condition:	Good [7 out of 9]
Substructure condition:	Good [7 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]
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:	25.7 tons [23.4 metric tons]
Sufficiency rating:	75.4

2000 Inspection 

Status:	Posted for load [P]
Average daily traffic:	700 [as of 1998]
Truck traffic:	5% of total traffic
Deck condition:	Very Good [8 out of 9]
Superstructure condition:	Good [7 out of 9]
Substructure condition:	Good [7 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]
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:	25.7 tons [23.4 metric tons]
Sufficiency rating:	81.6

1992 Inspection 

Status:	Bridge closed to all traffic [K]
Average daily traffic:	676 [as of 1989]
Truck traffic:	10% of total traffic
Deck condition:	Fair [5 out of 9]
Superstructure condition:	Poor [4 out of 9]
Substructure condition:	Good [7 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]
Scour condition:	Scour calculation/evaluation has not been made. [6]
Evaluation:	Structurally deficient [1]
Sufficiency rating:	32.8
Recommended work:	Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:	$72,000

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