Structure 210310003910094 · Cameron County, TX

SH 4 over Drainage Ditch

Carries SH 4 over Drainage Ditch, 0.60 Mi E Of FM 511.

Overall conditionFair

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

How ratings work
Culvertsets the rating5/9 · Fair
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT35 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 5/9

A culvert 35 ft across with 4 openings. Lengths and the car 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, so those are drawn as typical for a culvert.

Built1940rebuilt 1964
Length35.1 ft10.7 m
Daily traffic5,859counted 2020
Last inspectedMarch 2023every 24 months

Location

StateTexas
CountyCameron
Location0.60 Mi E Of FM 511
CarriesSH 4
CrossesDrainage Ditch
Coordinates25.91706, -97.39778

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length35.1 ft (10.7 m)
Max Span7.9 ft (2.4 m)
Deck Area130.5 sq m
Main Spans4
Year Built1940 (reconstructed 1964)

Traffic

Avg Daily Traffic5,859 (2020)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMarch 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour Critical4 — Foundations need monitoring
Structure Number210310003910094

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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