I 59/20 over 28 TH ST NO

Map 

Facts 

Name:	I 59/20 over 28 TH ST NO
Structure number:	010491
Old structure number:	00000I59370255A (from 1992 edition)
Location:	I 59 & 28 TH ST
Purpose:	Carries highway over highway
Route classification:	Principal Arterial - Interstate (Urban) [11]
Length of largest span:	70.9 ft. [21.6 m]
Total length:	172.9 ft. [52.7 m]
Roadway width between curbs:	77.8 ft. [23.7 m]
Deck width edge-to-edge:	80.1 ft. [24.4 m]
Vertical clearance below bridge:	14.1 ft. [4.3 m]
Skew angle:	5°
Owner:	State Highway Agency [01]
Year built:	1971
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:	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:	77,355 [as of 2008]
Truck traffic:	10% of total traffic
Deck condition:	Fair [5 out of 9]
Superstructure condition:	Satisfactory [6 out of 9]
Substructure condition:	Good [7 out of 9]
Scour condition:	Bridge not over waterway. [N]
Operating rating:	60.3 tons [54.8 metric tons]
Inventory rating:	36.1 tons [32.8 metric tons]
Sufficiency rating:	82.0
Recommended work:	Bridge deck replacement with only incidental widening. [37]
Estimated cost of work:	$5,178,000

2000 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	77,695 [as of 1997]
Truck traffic:	8% of total traffic
Deck condition:	Fair [5 out of 9]
Superstructure condition:	Satisfactory [6 out of 9]
Substructure condition:	Good [7 out of 9]
Scour condition:	Bridge not over waterway. [N]
Operating rating:	47.9 tons [43.5 metric tons]
Inventory rating:	36.0 tons [32.7 metric tons]
Sufficiency rating:	83.1
Recommended work:	Bridge deck replacement with only incidental widening. [37]
Estimated cost of work:	$1,403,000

1992 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	64,500 [as of 1988]
Truck traffic:	8% of total traffic
Deck condition:	Good [7 out of 9]
Superstructure condition:	Good [7 out of 9]
Substructure condition:	Good [7 out of 9]
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]
Scour condition:	Bridge not over waterway. [N]
Operating rating:	44.6 tons [40.5 metric tons]
Inventory rating:	35.6 tons [32.4 metric tons]
Sufficiency rating:	83.8
Recommended work:	Bridge deck replacement with only incidental widening. [37]
Estimated cost of work:	$2,000

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