23RD AVENUE over INTERSTATE 880

Map 

Facts 

Name:	23RD AVENUE over INTERSTATE 880
Structure number:	33 0139
Location:	04-ALA-880-28.93-OAK
Purpose:	Carries highway and pedestrian walkway over highway
Route classification:	Other Principal Arterial (Urban) [14]
Length of largest span:	109.9 ft. [33.5 m]
Total length:	503.0 ft. [153.3 m]
Roadway width between curbs:	24.0 ft. [7.3 m]
Deck width edge-to-edge:	32.2 ft. [9.8 m]
Vertical clearance below bridge:	14.8 ft. [4.5 m]
Skew angle:	54°
Owner:	State Highway Agency [01]
Year built:	1947
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:	4
Main spans material:	Steel continuous [4]
Main spans design:	Stringer/Multi-beam or girder [02]
Deck type:	Concrete Cast-in-Place [1]

2010 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	5,800 [as of 1998]
Truck traffic:	1% of total traffic
Deck condition:	Satisfactory [6 out of 9]
Superstructure condition:	Good [7 out of 9]
Substructure condition:	Good [7 out of 9]
Scour condition:	Bridge not over waterway. [N]
Operating rating:	69.5 tons [63.2 metric tons]
Inventory rating:	40.3 tons [36.6 metric tons]
Evaluation:	Functionally obsolete [2]
Sufficiency rating:	73.3
Recommended work:	Other structural work, including hydraulic replacements. [38]
Estimated cost of work:	$2,528,000

2000 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	5,800 [as of 1998]
Truck traffic:	1% of total traffic
Deck condition:	Good [7 out of 9]
Superstructure condition:	Good [7 out of 9]
Substructure condition:	Good [7 out of 9]
Pier/abutment protection:	Navigation protection not required [1]
Scour condition:	Bridge not over waterway. [N]
Operating rating:	69.9 tons [63.5 metric tons]
Inventory rating:	40.9 tons [37.2 metric tons]
Evaluation:	Functionally obsolete [2]
Sufficiency rating:	73.3
Recommended work:	Other structural work, including hydraulic replacements. [38]
Estimated cost of work:	$2,704,000

1992 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	5,800 [as of 1990]
Truck traffic:	1% of total traffic
Deck condition:	Good [7 out of 9]
Superstructure condition:	Good [7 out of 9]
Substructure condition:	Good [7 out of 9]
Scour condition:	Bridge not over waterway. [N]
Operating rating:	69.3 tons [63.0 metric tons]
Inventory rating:	40.6 tons [36.9 metric tons]
Evaluation:	Functionally obsolete [2]
Sufficiency rating:	73.4
Recommended work:	Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:	$1,092,000

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