Structure 33C0448 · Alameda County, CA

Arroyo Road over Dry Creek

Carries Arroyo Road over Dry Creek, 1 Mile SW Of Wetmore.

Overall conditionPoor

Set by its lowest-rated component: Deck and Superstructure at 4 of 9.

How ratings work
Decksets the rating4/9 · Poor
Superstructuresets the rating4/9 · Poor
Substructure5/9 · Fair
Channelnot part of overall9/9 · Excellent
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
25 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 4/9 · sets the ratingSuperstructure 4/9 · sets the ratingSubstructure 5/9

25 ft end to end. Lengths are drawn to scale; at this length a semi-truck would be a speck. 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.

Built1930rebuilt 1937
Length24.9 ft7.6 m
Daily traffic2,800counted 2014
Last inspectedNovember 2023every 24 months

Location

StateCalifornia
CountyAlameda
Location1 Mile SW Of Wetmore
CarriesArroyo Road
CrossesDry Creek
Coordinates37.63781, -121.76364

Physical Characteristics

MaterialOther
DesignStringer/Multi-beam
Total Length24.9 ft (7.6 m)
Max Span24.3 ft (7.4 m)
Deck Width23.3 ft (7.1 m)
Deck Area54.0 sq m
Main Spans1
Year Built1930 (reconstructed 1937)

Traffic

Avg Daily Traffic2,800 (2014)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last InspectionNovember 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number33C0448

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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