I55 over I240 / I55

Map 

Facts 

Name:	I55 over I240 / I55
Structure number:	79I00550038
Location:	I55 & I240 JCT
Purpose:	Carries highway over highway
Route classification:	Principal Arterial - Interstate (Urban) [11]
Length of largest span:	81.0 ft. [24.7 m]
Total length:	232.0 ft. [70.7 m]
Roadway width between curbs:	65.9 ft. [20.1 m]
Deck width edge-to-edge:	67.9 ft. [20.7 m]
Vertical clearance below bridge:	17.1 ft. [5.2 m]
Owner:	State Highway Agency [01]
Year built:	1958
Year reconstructed:	1998
Historic significance:	Historical significance is not determinable at this time [4]
Design load:	MS 18+Mod / HS 20+Mod [6]
Number of main spans:	2
Main spans material:	Prestressed concrete continuous [6]
Main spans design:	Box beam or girders - Multiple [05]
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:	95,930 [as of 2009]
Truck traffic:	6% of total traffic
Deck condition:	Satisfactory [6 out of 9]
Superstructure condition:	Very Good [8 out of 9]
Substructure condition:	Good [7 out of 9]
Scour condition:	Bridge not over waterway. [N]
Operating rating:	48.5 tons [44.1 metric tons]
Inventory rating:	35.6 tons [32.4 metric tons]
Evaluation:	Functionally obsolete [2]
Sufficiency rating:	81.0

2000 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	72,030 [as of 1999]
Truck traffic:	6% of total traffic
Deck condition:	Fair [5 out of 9]
Superstructure condition:	Satisfactory [6 out of 9]
Substructure condition:	Satisfactory [6 out of 9]
Scour condition:	Bridge not over waterway. [N]
Operating rating:	48.5 tons [44.1 metric tons]
Inventory rating:	28.7 tons [26.1 metric tons]
Evaluation:	Functionally obsolete [2]
Sufficiency rating:	57.9
Recommended work:	Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:	$1,699,000

1992 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	87,700 [as of 1991]
Truck traffic:	7% 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 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:	48.5 tons [44.1 metric tons]
Inventory rating:	35.6 tons [32.4 metric tons]
Evaluation:	Functionally obsolete [2]
Sufficiency rating:	77.0
Recommended work:	Widening of existing bridge with deck rehabilitation or replacement. [34]
Estimated cost of work:	$501,000

Comments