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Nearby Bridges in NBI 2021: 1


ALDERPOINT RD over EEL RIVER & NWP RR (Route: 0)
Num: 04C0025x
Open: no restriction [A]
Built: 1972, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.1 Miles (0.2 Kilometers)

Bridge Type
Main Span(s): Steel continuous [4] Stringer/Multi-beam or girder [02]
Approach Span(s): Concrete [1] Slab [01]
Deck: Concrete Cast-in-Place [1] with Wearing Surface:
Bridge Dimensions
Length: 232.3 m = 762.2 ft
Main Spans: 3 at 85.3 m = 279.9 ft
Approach Spans: 2
Skew: 0
Width, Roadway: 8.5 m = 27.9 ft (2 Lanes) and Out-To-Out: 9.1 m = 29.9 ft for a 7.3 m = 24.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 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 SE OF ALDERPOINT
Condition
Deck: Fair [5]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: MS 18 / HS 20 [5]
Operating: 29.8 metric ton = 32.8 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Inventory: 23 metric ton = 25.3 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Appraisal
Structural: Equal to present minimum criteria [6]
Deck Geometry: Equal to present minimum criteria [6]
Road Alignment: Meets minimum tolerable limits to be left in place as is [4]
Waterway: Equal to present desirable criteria [8] and Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Inspections
Date: February 2020 [0220] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 4.2 km = 2.6 mi
Traffic
ADT: 240 (2008) and Trucks: 5%
Future ADT: 438 (In 2042 )

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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