Structure 152470010004016 · Wilson County, TX

US 181 over Drainage Ditch

Carries US 181 over Drainage Ditch, 1.90 Mi NW Of Karnes C/l.

Overall conditionGood

Set by its lowest-rated component: Culvert at 7 of 9.

How ratings work
Culvertsets the rating7/9 · Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT27 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 7/9

A culvert 27 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.

Built1928rebuilt 1978
Length26.9 ft8.2 m
Daily traffic7,754counted 2023
Last inspectedJuly 2024every 24 months

Location

StateTexas
CountyWilson
Location1.90 Mi NW Of Karnes C/l
CarriesUS 181
CrossesDrainage Ditch
Coordinates29.01867, -98.05254

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length26.9 ft (8.2 m)
Max Span5.9 ft (1.8 m)
Deck Width62.3 ft (19 m)
Deck Area155.8 sq m
Main Spans4
Year Built1928 (reconstructed 1978)

Traffic

Avg Daily Traffic7,754 (2023)
Truck Traffic25%
Lanes On Bridge4

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour Critical8 — Stable, low risk
Structure Number152470010004016

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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