Structure 29C0436 · San Joaquin County, CA

Trinity Parkway over Bear Creek

Carries Trinity Parkway over Bear Creek, S Of W Eight Mile Road.

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
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT192 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

192 ft end to end, longest span 48 ft: about 3 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 slab bridge.

Built200818 years old
Length191.9 ft58.5 m
Daily traffic6counted 2015
Last inspectedJanuary 2023every 48 months

Location

StateCalifornia
CountySan Joaquin
LocationS Of W Eight Mile Road
CarriesTrinity Parkway
CrossesBear Creek
Coordinates38.04305, -121.37052

Physical Characteristics

MaterialPrestressed Concrete
DesignSlab
Total Length191.9 ft (58.5 m)
Max Span47.9 ft (14.6 m)
Deck Width67.9 ft (20.7 m)
Deck Area1211.0 sq m
Main Spans5
Year Built2008

Traffic

Avg Daily Traffic6 (2015)
Truck Traffic3%
Lanes On Bridge4

Inspection & Ownership

Last InspectionJanuary 2023
Inspection FrequencyEvery 48 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number29C0436

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.

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