HistoricBridges.org Menu: HistoricBridges.org Menu:



BridgeSeek

Nearby Bridges in NBI 2021: 1


STATE ROUTE 12 over HOOKER CREEK (Route: 12)
Num: 20 0030x
Open: no restriction [A]
Built: 1901, Reconstructed: 1924
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0 Miles (0 Kilometers)

Bridge Type
Main Span(s): Masonry [8] Arch - Deck [11]
Approach Span(s): Other [00]
Deck: Not applicable [N] with Wearing Surface: Not applicable (applies only to structures with no deck) [N]
Bridge Dimensions
Length: 7.3 m = 24.0 ft
Main Spans: 1 at 6.1 m = 20.0 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 10.7 m = 35.1 ft (2 Lanes) and Out-To-Out: 11 m = 36.1 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]: Sonoma County [097], California [06]
Owned by State Highway Agency [01], DOT District: 4
04-SON-012-33.31
Condition
Deck: Not Applicable [N]
Superstructure: Good [7]
Substructure: Critical [2]
Loading
Design:
Operating: 27.2 metric ton = 29.9 tons ()
Inventory: 16.2 metric ton = 17.8 tons ()
Appraisal
Structural: Basically intolerable requiring high priority of replacement [2]
Deck Geometry: Meets minimum tolerable limits to be left in place as is [4]
Road Alignment: Better than present minimum criteria [7]
Waterway: Equal to present desirable criteria [8] and Bridge is scour critical; field review indicates that extensive scour has occurred at bridge foundations. [2]
Inspections
Date: September 2020 [0920] and Frequency: 24
Future Work
Work Needed: Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Bridge Detour: 0.6 km = 0.4 mi
Traffic
ADT: 12200 (2014) and Trucks: 0%
Future ADT: 20600 (In 2037 )

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.

Divider

Back

Top

Divider

About - Contact

Divider