258 TH STREET over SILVER CK

Map 

Facts 

Name:	258 TH STREET over SILVER CK
Structure number:	000000050205140
Location:	0.2E RENNER
Purpose:	Carries highway over waterway
Route classification:	Major Collector (Rural) [07]
Length of largest span:	20.0 ft. [6.1 m]
Total length:	60.0 ft. [18.3 m]
Roadway width between curbs:	31.8 ft. [9.7 m]
Deck width edge-to-edge:	34.1 ft. [10.4 m]
Owner:	County Highway Agency [02]
Year built:	1935
Year reconstructed:	1967
Historic significance:	Bridge is not eligible for the National Register of Historic Places [5]
Design load:	M 9 / H 10 [1]
Number of main spans:	3
Main spans material:	Steel [3]
Main spans design:	Stringer/Multi-beam or girder [02]
Deck type:	Concrete Cast-in-Place [1]
Wearing surface:	Bituminous [6]

2010 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	570 [as of 2007]
Truck traffic:	3% of total traffic
Deck condition:	Fair [5 out of 9]
Superstructure condition:	Satisfactory [6 out of 9]
Substructure condition:	Satisfactory [6 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 with "unknown" foundation that has not been evaluated for scour. [U]
Operating rating:	30.9 tons [28.1 metric tons]
Inventory rating:	18.9 tons [17.2 metric tons]
Sufficiency rating:	74.5

2000 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	570 [as of 1998]
Truck traffic:	3% of total traffic
Deck condition:	Satisfactory [6 out of 9]
Superstructure condition:	Satisfactory [6 out of 9]
Substructure condition:	Satisfactory [6 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:	30.9 tons [28.1 metric tons]
Inventory rating:	18.9 tons [17.2 metric tons]
Sufficiency rating:	75.5
Recommended work:	Other structural work, including hydraulic replacements. [38]
Estimated cost of work:	$14,000

1992 Inspection 

Status:	Posted for load [P]
Average daily traffic:	570 [as of 1991]
Truck traffic:	3% of total traffic
Deck condition:	Good [7 out of 9]
Superstructure condition:	Very Good [8 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:	31.7 tons [28.8 metric tons]
Inventory rating:	20.8 tons [18.9 metric tons]
Sufficiency rating:	79.7
Recommended work:	Other structural work, including hydraulic replacements. [38]
Estimated cost of work:	$14,000

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