Structure 39C0347 · Merced County, CA

Washington Road over Eastside Bypass

Carries Washington Road over Eastside Bypass, 0.1 Mi E Harmon RD.

Overall conditionPoor

Set by its lowest-rated component: Substructure at 0 of 9.

How ratings work
Deck3/9 · Serious
Superstructure3/9 · Serious
Substructuresets the rating0/9 · Failed
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT705 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 3/9Superstructure 3/9Substructure 0/9 · sets the rating

705 ft end to end, longest span 30 ft: about 2.0 football fields. 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.

Built196858 years old
Length705.1 ft214.9 m
Daily traffic120counted 1990
Last inspectedNovember 2024every 24 months

Location

StateCalifornia
CountyMerced
Location0.1 Mi E Harmon RD
CarriesWashington Road
CrossesEastside Bypass
Coordinates37.11324, -120.56364

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length705.1 ft (214.9 m)
Max Span29.9 ft (9.1 m)
Deck Width30.2 ft (9.2 m)
Deck Area1977.1 sq m
Main Spans24
Year Built1968

Traffic

Avg Daily Traffic120 (1990)
Truck Traffic10%
Lanes On Bridge2

Inspection & Ownership

Last InspectionNovember 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical0 — Bridge closed
Structure Number39C0347

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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