Bridge Type
Main Span(s): Concrete continuous [2] Box beam or girders - Multiple [05]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Bituminous [6]
Bridge Dimensions
Length: 100.6 m = 330.1 ft
Main Spans: 4 at 27.4 m = 89.9 ft
Approach Spans: 0
Skew: 30
Width, Roadway: 8.5 m = 27.9 ft (2 Lanes) and Out-To-Out: 10.4 m = 34.1 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]: Siskiyou County [093], California [06]
Owned by State Highway Agency [01], DOT District: 2
02-SIS-096-41.02
Condition
Deck: Good [7]
Superstructure: Fair [5]
Substructure: Fair [5]
Loading
Design: MS 18 / HS 20 [5]
Operating: 33.4 metric ton = 36.7 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Inventory: 25.9 metric ton = 28.5 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Appraisal
Structural: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck Geometry: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Equal to present desirable criteria [8] and Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Inspections
Date: September 2020 [0920] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 14.8 km = 9.2 mi
Traffic
ADT: 1000 (2015) and Trucks: 6%
Future ADT: 1200 (In 2040
)