Structure 162050010104037 · San Patricio County, TX

US 181 Nbfr over Drainage Ditch

Carries US 181 Nbfr over Drainage Ditch, 1.23 Mi NE Of FM 3239.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure and Substructure at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT76 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

76 ft end to end, longest span 25 ft. 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 or the layout of the shorter spans, so those are drawn as typical for a slab bridge.

Built195274 years old
Length76.4 ft23.3 m
Daily traffic10,932counted 2022
Last inspectedApril 2024every 24 months

Location

StateTexas
CountySan Patricio
Location1.23 Mi NE Of FM 3239
CarriesUS 181 Nbfr
CrossesDrainage Ditch
Coordinates27.91261, -97.29681

Physical Characteristics

MaterialConcrete
DesignSlab
Total Length76.4 ft (23.3 m)
Max Span24.9 ft (7.6 m)
Deck Width42.0 ft (12.8 m)
Deck Area298.2 sq m
Main Spans3
Year Built1952

Traffic

Avg Daily Traffic10,932 (2022)
Truck Traffic6%
Lanes On Bridge2

Inspection & Ownership

Last InspectionApril 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour Critical8 — Stable, low risk
Structure Number162050010104037

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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