Bridge Type
Main Span(s): Concrete [1] Arch - Deck [11]
Approach Span(s): Concrete [1] Tee beam [04]
Deck: Concrete Cast-in-Place [1] with Wearing Surface:
Bridge Dimensions
Length: 73.5 m = 241.2 ft
Main Spans: 1 at 35.7 m = 117.1 ft
Approach Spans: 3
Skew: 99
Width, Roadway: 7.4 m = 24.3 ft (2 Lanes) and Out-To-Out: 8.1 m = 26.6 ft for a 7.6 m = 24.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Unknown [00000]: Nevada County [057], California [06]
Owned by County Highway Agency [02], DOT District: 3
2.0 MI W DONNER LAKE
Condition
Deck: Fair [5]
Superstructure: Fair [5]
Substructure: Good [7]
Loading
Design: M 13.5 / H 15 [2]
Operating: 58.9 metric ton = 64.8 tons (Load Factor(LF) [1])
Inventory: 35.4 metric ton = 38.9 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: Equal to present minimum criteria [6]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: August 2020 [0820] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 1.4 km = 0.9 mi
Traffic
ADT: 552 (2014) and Trucks: 10%
Future ADT: 978 (In 2040
)