Structure 52 0268E · Ventura County, CA

N23-n101 N101-s23 over U.s. Highway 101

Carries N23-n101 N101-s23 over U.s. Highway 101, 07-ven-023-r3.29-thok.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT313 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

313 ft end to end, longest span 78 ft: about 4 semi-trucks nose to tail. Lengths and the semi-truck on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a multi-beam bridge.

Built1964rebuilt 1973
Length312.7 ft95.3 m
Daily traffic37,500counted 2019
Last inspectedMay 2023every 24 months

Location

StateCalifornia
CountyVentura
Location07-ven-023-r3.29-thok
CarriesN23-n101 N101-s23
CrossesU.s. Highway 101
Coordinates34.15716, -118.82522

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length312.7 ft (95.3 m)
Max Span78.1 ft (23.8 m)
Deck Width116.1 ft (35.4 m)
Deck Area3373.6 sq m
Main Spans4
Year Built1964 (reconstructed 1973)

Traffic

Avg Daily Traffic37,500 (2019)
Truck Traffic3%
Lanes On Bridge6
Lanes Under Bridge12

Inspection & Ownership

Last InspectionMay 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number52 0268E

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

Nearby Bridges