Structure 150830027607045 · Frio County, TX

US 57 over Frio River

Carries US 57 over Frio River, 11.9 Mi E Of Zavala Cl.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT330 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

330 ft end to end, longest span 90 ft: about 5 semi-trucks nose to tail. 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 multi-beam bridge.

Built1957rebuilt 1971
Length330.1 ft100.6 m
Daily traffic7,458counted 2023
Last inspectedJuly 2024every 24 months

Location

StateTexas
CountyFrio
Location11.9 Mi E Of Zavala Cl
CarriesUS 57
CrossesFrio River
Coordinates28.98288, -99.23573

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length330.1 ft (100.6 m)
Max Span89.9 ft (27.4 m)
Deck Width46.3 ft (14.1 m)
Deck Area1418.5 sq m
Main Spans3
Year Built1957 (reconstructed 1971)

Traffic

Avg Daily Traffic7,458 (2023)
Truck Traffic31%
Lanes On Bridge2

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 Number150830027607045

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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