Structure 212450032710228 · Willacy County, TX

US 77 Sbml over Thomas Ranch RD

Carries US 77 Sbml over Thomas Ranch RD, 8.1 Mi N Of Tx-186.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructure8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT195 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 8/9

195 ft end to end, longest span 65 ft: about 3 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.

Built20206 years old
Length194.9 ft59.4 m
Daily traffic7,330counted 2020
Last inspectedMarch 2023every 48 months

Location

StateTexas
CountyWillacy
Location8.1 Mi N Of Tx-186
CarriesUS 77 Sbml
CrossesThomas Ranch RD
Coordinates26.59796, -97.76673

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length194.9 ft (59.4 m)
Max Span65.0 ft (19.8 m)
Deck Width40.0 ft (12.2 m)
Deck Area724.7 sq m
Main Spans3
Year Built2020

Traffic

Avg Daily Traffic7,330 (2020)
Truck Traffic10%
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionMarch 2023
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number212450032710228

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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