Bridge Type
Main Span(s): Prestressed concrete [5] Tee beam [04]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Integral Concrete (separate non-modified layer of concrete added to structural deck) [2]
Bridge Dimensions
Length: 14.8 m = 48.6 ft
Main Spans: 1 at 14.6 m = 47.9 ft
Approach Spans: 0
Skew: 31
Width, Roadway: 22.6 m = 74.2 ft (6 Lanes) and Out-To-Out: 32.9 m = 107.9 ft for a 22.6 m = 74.2 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Walnut Creek [83346]: Contra Costa County [013], California [06]
Owned by City or Municipal Highway Agency [04], DOT District: 4
0.8 MI E OF I 680
Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design:
Operating: 61.2 metric ton = 67.3 tons (Load Factor(LF) [1])
Inventory: 32.4 metric ton = 35.6 tons (Load Factor(LF) [1])
Appraisal
Structural: Better than present minimum criteria [7]
Deck Geometry: Meets minimum tolerable limits to be left in place as is [4]
Road Alignment: Superior to present desirable criteria [9]
Waterway: Equal to present desirable criteria [8] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: January 1999 [199] and Frequency: 48
Future Work
Work Needed:
Bridge Detour: 0.3 km = 0.2 mi
Traffic
ADT: 63000 (2013) and Trucks: 2%
Future ADT: 31836 (In 2036
)