Bridge Type
Main Span(s): Steel [3] Movable - Bascule [16]
Approach Span(s): Steel [3] Stringer/Multi-beam or girder [02]
Deck: Open Grating [3] with Wearing Surface:
Bridge Dimensions
Length: 293.5 m = 963.0 ft
Main Spans: 1 at 31.9 m = 104.7 ft
Approach Spans: 21
Skew: 0
Width, Roadway: 15.8 m = 51.8 ft (4 Lanes) and Out-To-Out: 19.9 m = 65.3 ft for a 17.7 m = 58.1 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 6.4 m = 21.0 ft
Location
Alameda [00562]: Alameda County [001], California [06]
Owned by State Highway Agency [01], DOT District: 4
04-ALA-061-18.55-ALA
Condition
Deck: Fair [5]
Superstructure: Fair [5]
Substructure: Fair [5]
Loading
Design: MS 18 / HS 20 [5]
Operating: 46.7 metric ton = 51.4 tons (Load Factor(LF) [1])
Inventory: 27.9 metric ton = 30.7 tons (Load Factor(LF) [1])
Appraisal
Structural: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck Geometry: Meets minimum tolerable limits to be left in place as is [4]
Road Alignment: Meets minimum tolerable limits to be left in place as is [4]
Waterway: Better than present minimum criteria [7] and Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Inspections
Date: March 1999 [399] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 0.8 km = 0.5 mi
Traffic
ADT: 20800 (2009) and Trucks: 5%
Future ADT: 25606 (In 2037
)