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Nearby Bridges in NBI 2021: 1


STATE ROUTE 4 over MIDDLE RIVER (Route: 4)
Num: 29 0049x
Open: no restriction [A]
Built: 1915, Reconstructed: N/A [0000]
Historic: Bridge is eligible for the NRHP. [2]

Google Streetview (If Available)

Rough Distance: 0.1 Miles (0.1 Kilometers)

Bridge Type
Main Span(s): Steel [3] Truss - Thru [10]
Approach Span(s): Steel [3] Truss - Thru [10]
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: 166.7 m = 546.9 ft
Main Spans: 2 at 39.6 m = 129.9 ft
Approach Spans: 3
Skew: 0
Width, Roadway: 6 m = 19.7 ft (2 Lanes) and Out-To-Out: 6.6 m = 21.7 ft for a 7.9 m = 25.9 ft approaching roadway.
Vertical Clearance: 5.99 m = 19.7 ft and Navigational Clearance: 4.6 m = 15.1 ft
Location
Unknown [00000]: San Joaquin County [077], California [06]
Owned by State Highway Agency [01], DOT District: 10
10-SJ-004-4.42
Condition
Deck: Fair [5]
Superstructure: Good [7]
Substructure: Fair [5]
Loading
Design: M 13.5 / H 15 [2]
Operating: 58 metric ton = 63.8 tons (Load Factor(LF) [1])
Inventory: 34.7 metric ton = 38.2 tons (Load Factor(LF) [1])
Appraisal
Structural: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck Geometry: Basically intolerable requiring high priority of replacement [2]
Road Alignment: Basically intolerable requiring high priority of corrrective action [3]
Waterway: Better than present minimum criteria [7] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: April 1999 [499] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 4.5 km = 2.8 mi
Traffic
ADT: 7200 (2009) and Trucks: 11%
Future ADT: 23000 (In 2038 )

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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