Bridge Type
Main Span(s): Prestressed concrete [5] Box beam or girders - Multiple [05]
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: 31.7 m = 104.0 ft
Main Spans: 1 at 30.9 m = 101.4 ft
Approach Spans: 0
Skew: 8
Width, Roadway: 32.1 m = 105.3 ft (6 Lanes) and Out-To-Out: 33.5 m = 109.9 ft for a 32.3 m = 106.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Dunsmuir [20242]: Siskiyou County [093], California [06]
Owned by State Highway Agency [01], DOT District: 2
02-SIS-005-3.84-DMR
Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: MS 18 / HS 20 [5]
Operating: 58.6 metric ton = 64.5 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Inventory: 44.1 metric ton = 48.5 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Appraisal
Structural: Better than present minimum criteria [7]
Deck Geometry: Superior to present desirable criteria [9]
Road Alignment: Better than present minimum criteria [7]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: July 2020 [0720] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 1 km = 0.6 mi
Traffic
ADT: 19200 (2010) and Trucks: 26%
Future ADT: 26613 (In 2042
)
