ON I STREET over I STREET VIADUCT

Map 

Facts 

Name:	ON I STREET over I STREET VIADUCT
Structure number:	24C0364L
Location:	BTWN I-5 & SACRAMENTO RIV
Purpose:	Carries highway and pedestrian walkway over railroad
Route classification:	Other Principal Arterial (Urban) [14]
Length of largest span:	73.2 ft. [22.3 m]
Total length:	630.0 ft. [192.0 m]
Roadway width between curbs:	33.1 ft. [10.1 m]
Deck width edge-to-edge:	45.9 ft. [14.0 m]
Vertical clearance below bridge:	26.9 ft. [8.2 m]
Owner:	City or Municipal Highway Agency [04]
Year built:	1936
Historic significance:	Bridge is not eligible for the National Register of Historic Places [5]
Design load:	M 13.5 / H 15 [2]
Number of main spans:	15
Main spans material:	Steel [3]
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:	8,200 [as of 1983]
Truck traffic:	10% of total traffic
Deck condition:	Serious [3 out of 9]
Superstructure condition:	Satisfactory [6 out of 9]
Substructure condition:	Fair [5 out of 9]
Scour condition:	Bridge not over waterway. [N]
Operating rating:	33.9 tons [30.8 metric tons]
Inventory rating:	20.9 tons [19.0 metric tons]
Evaluation:	Structurally deficient [1]
Sufficiency rating:	63.1
Recommended work:	Bridge deck rehabilitation with only incidental widening. [36]
Estimated cost of work:	$4,522,000

2000 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	10,000 [as of 1998]
Truck traffic:	10% of total traffic
Deck condition:	Poor [4 out of 9]
Superstructure condition:	Satisfactory [6 out of 9]
Substructure condition:	Fair [5 out of 9]
Scour condition:	Bridge not over waterway. [N]
Operating rating:	33.9 tons [30.8 metric tons]
Inventory rating:	20.9 tons [19.0 metric tons]
Evaluation:	Structurally deficient [1]
Sufficiency rating:	64.7
Recommended work:	Bridge deck rehabilitation with only incidental widening. [36]
Estimated cost of work:	$2,016,000

1992 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	10,000 [as of 1983]
Truck traffic:	10% 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:	33.7 tons [30.6 metric tons]
Inventory rating:	20.8 tons [18.9 metric tons]
Evaluation:	Functionally obsolete [2]
Sufficiency rating:	72.7
Recommended work:	Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:	$1,956,000

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