MISSION BAY DRIVE over SAN DIEGO RIVER

Map 

Facts 

Name:	MISSION BAY DRIVE over SAN DIEGO RIVER
Structure number:	57C0023
Location:	0.1 MI NW RTE I 8
Purpose:	Carries highway and pedestrian walkway over waterway
Route classification:	Minor Arterial (Urban) [16]
Length of largest span:	119.1 ft. [36.3 m]
Total length:	1296.0 ft. [395.0 m]
Roadway width between curbs:	48.6 ft. [14.8 m]
Deck width edge-to-edge:	63.7 ft. [19.4 m]
Skew angle:	45°
Owner:	City or Municipal Highway Agency [04]
Year built:	1950
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:	11
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:	55,000 [as of 2005]
Truck traffic:	1% of total traffic
Deck condition:	Critical [2 out of 9]
Superstructure condition:	Good [7 out of 9]
Substructure condition:	Satisfactory [6 out of 9]
Channel protection:	Banks are protected or well vegetated. River control devices such as spur dikes and embankment protection are not required or are in a stable condition. [8]
Scour condition:	Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Operating rating:	64.1 tons [58.3 metric tons]
Inventory rating:	36.0 tons [32.7 metric tons]
Evaluation:	Structurally deficient [1]
Sufficiency rating:	68.8
Recommended work:	Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:	$12,894,000

2000 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	55,000 [as of 1998]
Truck traffic:	1% of total traffic
Deck condition:	Fair [5 out of 9]
Superstructure condition:	Good [7 out of 9]
Substructure condition:	Good [7 out of 9]
Channel protection:	Banks are protected or well vegetated. River control devices such as spur dikes and embankment protection are not required or are in a stable condition. [8]
Scour condition:	Scour calculation/evaluation has not been made. [6]
Operating rating:	33.9 tons [30.8 metric tons]
Inventory rating:	9.0 tons [8.2 metric tons]
Evaluation:	Structurally deficient [1]
Sufficiency rating:	22.3
Recommended work:	Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:	$13,793,000

1992 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	55,000 [as of 1991]
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]
Channel protection:	Banks are protected or well vegetated. River control devices such as spur dikes and embankment protection are not required or are in a stable condition. [8]
Scour condition:	Scour calculation/evaluation has not been made. [6]
Operating rating:	33.7 tons [30.6 metric tons]
Inventory rating:	8.9 tons [8.1 metric tons]
Evaluation:	Structurally deficient [1]
Sufficiency rating:	23.0
Recommended work:	Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:	$19,099,000

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