Structure 39C0108 · Merced County, CA

Harding Avenue over Lateral #6

Carries Harding Avenue over Lateral #6, 0.4 Mi E Of Merced AVE.

Overall conditionFair

Set by its lowest-rated component: Substructure at 5 of 9.

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating5/9 · Fair
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
23 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 5/9 · sets the rating

23 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 slab bridge.

Built1924102 years old
Length23.0 ft7 m
Daily traffic173counted 2008
Last inspectedJanuary 2024every 24 months

Location

StateCalifornia
CountyMerced
Location0.4 Mi E Of Merced AVE
CarriesHarding Avenue
CrossesLateral #6
Coordinates37.46327, -120.78694

Physical Characteristics

MaterialConcrete
DesignSlab
Total Length23.0 ft (7 m)
Max Span22.0 ft (6.7 m)
Deck Width24.0 ft (7.3 m)
Deck Area51.1 sq m
Main Spans1
Year Built1924

Traffic

Avg Daily Traffic173 (2008)
Truck Traffic26%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJanuary 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number39C0108

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