Bridge Type
Main Span(s): Steel [3] Movable - Bascule [16]
Approach Span(s): Concrete [1] Slab [01]
Deck: Open Grating [3] with Wearing Surface:
Bridge Dimensions
Length: 154 m = 505.3 ft
Main Spans: 3 at 90 m = 295.3 ft
Approach Spans: 6
Skew: 0
Width, Roadway: 7.3 m = 24.0 ft (2 Lanes) and Out-To-Out: 7.9 m = 25.9 ft for a 8.8 m = 28.9 ft approaching roadway.
Vertical Clearance: 4.39 m = 14.4 ft and Navigational Clearance: 5.5 m = 18.0 ft
Location
Unknown [00000]: Alameda County [001], California [06]
Owned by County Highway Agency [02], DOT District: 4
0.4 MI S/W OF I-880
Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Serious [3]
Loading
Design:
Operating: 62.5 metric ton = 68.8 tons (Load Factor(LF) [1])
Inventory: 42.8 metric ton = 47.1 tons (Allowable Stress(AS) [2])
Appraisal
Structural: Basically intolerable requiring high priority of corrrective action [3]
Deck Geometry: Basically intolerable requiring high priority of replacement [2]
Road Alignment: Equal to present minimum criteria [6]
Waterway: Superior to present desirable criteria [9] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: April 1999 [499] and Frequency: 24
Future Work
Work Needed: Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Bridge Detour: 0.3 km = 0.2 mi
Traffic
ADT: 19900 (2014) and Trucks: 10%
Future ADT: 23282 (In 2041
)