Bridge Type
Main Span(s): Steel [3] Girder and floorbeam system [03]
Approach Span(s): Other [00]
Deck: Steel plate (includes orthotropic) [5] with Wearing Surface:
Bridge Dimensions
Length: 29 m = 95.1 ft
Main Spans: 1 at 23.8 m = 78.1 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 2.7 m = 8.9 ft (1 Lanes) and Out-To-Out: 2.7 m = 8.9 ft for a 2.7 m = 8.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Unknown [00000]: Sierra County [091], California [06]
Owned by County Highway Agency [02], DOT District: 3
1.6 MI SOUTH OF ALLEGHANY
Condition
Deck: Fair [5]
Superstructure: Fair [5]
Substructure: Fair [5]
Loading
Design:
Operating: 29.8 metric ton = 32.8 tons (Load Factor(LF) [1])
Inventory: 17.8 metric ton = 19.6 tons (Load Factor(LF) [1])
Appraisal
Structural: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck Geometry: Basically intolerable requiring high priority of replacement [2]
Road Alignment: Equal to present minimum criteria [6]
Waterway: Equal to present desirable criteria [8] and Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Inspections
Date: August 1999 [899] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 2.1 km = 1.3 mi
Traffic
ADT: 20 (2005) and Trucks: 20%
Future ADT: 31 (In 2036
)
