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Nearby Bridges in NBI 2021: 1


LINDLEY ROAD over MATTOLE RIVER (Route: 0)
Num: 04C0075x
Posted for load [P]
Built: 1925, Reconstructed: N/A [0000]
Historic: Bridge is eligible for the NRHP. [2]

Google Streetview (If Available)

Rough Distance: 0 Miles (0 Kilometers)

Bridge Type
Main Span(s): Steel [3] Suspension [13]
Approach Span(s): Other [00]
Deck: Wood or Timber [8] with Wearing Surface: Wood or Timber [7]
Bridge Dimensions
Length: 70.7 m = 232.0 ft
Main Spans: 1 at 69 m = 226.4 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 3.6 m = 11.8 ft (1 Lanes) and Out-To-Out: 4.1 m = 13.5 ft for a 4.3 m = 14.1 ft approaching roadway.
Vertical Clearance: 4.75 m = 15.6 ft and Navigational Clearance: 0 = N/A
Location
Unknown [00000]: Humboldt County [023], California [06]
Owned by County Highway Agency [02], DOT District: 1
0.5 MI NE MATTOLE RD
Condition
Deck: Good [7]
Superstructure: Satisfactory [6]
Substructure: Fair [5]
Loading
Design:
Operating: 13.3 metric ton = 14.6 tons (Load Factor(LF) [1])
Inventory: 8.1 metric ton = 8.9 tons (Load Factor(LF) [1])
Appraisal
Structural: Basically intolerable requiring high priority of corrrective action [3]
Deck Geometry: Basically intolerable requiring high priority of corrrective action [3]
Road Alignment: Equal to present minimum criteria [6]
Waterway: Equal to present desirable criteria [8] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: March 2020 [0320] and Frequency: 12
Future Work
Work Needed:
Bridge Detour: 19.9 km = 12.3 mi
Traffic
ADT: 50 (2011) and Trucks: 2%
Future ADT: 109 (In 2041 )

Special Bridge Conditions Legend: R - Former location of relocated bridge. ! - At risk for demolition or destruction. X - Confirmed demolished or collapsed. S  - Dismantled and/or in storage. L -  Severe loss of historic integrity due to alteration.

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