Structure 210310003908244 · Cameron County, TX

US 77 SB over FM 1732 (anacua St)

Carries US 77 SB over FM 1732 (anacua St), 0.90 Mi S Of FM 511.

Overall conditionGood

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

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

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT205 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 7/9 · sets the rating

205 ft end to end: 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.

Built1991rebuilt 2004
Length205.1 ft62.5 m
Daily traffic30,810counted 2011
Last inspectedMarch 2023every 48 months

Location

StateTexas
CountyCameron
Location0.90 Mi S Of FM 511
CarriesUS 77 SB
CrossesFM 1732 (anacua St)
Coordinates26.01626, -97.53049

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length205.1 ft (62.5 m)
Max Span85.0 ft (25.9 m)
Deck Width56.1 ft (17.1 m)
Deck Area1068.8 sq m
Main Spans1
Year Built1991 (reconstructed 2004)

Traffic

Avg Daily Traffic30,810 (2011)
Truck Traffic8%
Lanes On Bridge3
Lanes Under Bridge6

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 Number210310003908244

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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