SB INTERSTATE 280 over 7TH STREET, ON-RAMP

Map 

Facts 

Name:	SB INTERSTATE 280 over 7TH STREET, ON-RAMP
Structure number:	37 0280L
Location:	04-SCL-280-R1.55-SJS
Purpose:	Carries highway over highway
Route classification:	Principal Arterial - Interstate (Urban) [11]
Length of largest span:	138.5 ft. [42.2 m]
Total length:	607.0 ft. [185.0 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:	15.7 ft. [4.8 m]
Skew angle:	24°
Owner:	State Highway Agency [01]
Year built:	1972
Historic significance:	Bridge is not eligible for the National Register of Historic Places [5]
Design load:	MS 18+Mod / HS 20+Mod [6]
Number of main spans:	5
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:	105,200 [as of 1998]
Truck traffic:	4% of total traffic
Deck condition:	Poor [4 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:	90.9 tons [82.6 metric tons]
Inventory rating:	35.6 tons [32.4 metric tons]
Evaluation:	Structurally deficient [1]
Sufficiency rating:	76.0
Recommended work:	Other structural work, including hydraulic replacements. [38]
Estimated cost of work:	$4,084,000

2000 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	106,900 [as of 1997]
Truck traffic:	4% 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]
Scour condition:	Bridge not over waterway. [N]
Operating rating:	90.8 tons [82.5 metric tons]
Inventory rating:	35.9 tons [32.6 metric tons]
Evaluation:	Functionally obsolete [2]
Sufficiency rating:	64.0
Recommended work:	Other structural work, including hydraulic replacements. [38]
Estimated cost of work:	$1,386,000

1992 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	88,550 [as of 1990]
Deck condition:	Good [7 out of 9]
Superstructure condition:	Good [7 out of 9]
Substructure condition:	Very Good [8 out of 9]
Scour condition:	Bridge not over waterway. [N]
Operating rating:	90.1 tons [81.9 metric tons]
Inventory rating:	35.6 tons [32.4 metric tons]
Evaluation:	Functionally obsolete [2]
Sufficiency rating:	64.0
Recommended work:	Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:	$559,000

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