Structure 210310003907203 · Cameron County, TX

Us77/83nb-us2/83wb over US 77 Dixieland & Tyler

Carries Us77/83nb-us2/83wb over US 77 Dixieland & Tyler, US 77/83 Interchange.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT2,219 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

2,219 ft end to end, longest span 130 ft: about 6.2 football fields. 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.

Built197155 years old
Length2219.2 ft676.4 m
Daily traffic92,873counted 2023
Last inspectedMarch 2023every 48 months

Location

StateTexas
CountyCameron
LocationUS 77/83 Interchange
CarriesUs77/83nb-us2/83wb
CrossesUS 77 Dixieland & Tyler
Coordinates26.18788, -97.71707

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length2219.2 ft (676.4 m)
Max Span129.9 ft (39.6 m)
Deck Width44.3 ft (13.5 m)
Deck Area9131.4 sq m
Main Spans4
Year Built1971

Traffic

Avg Daily Traffic92,873 (2023)
Truck Traffic9%
Lanes On Bridge2
Lanes Under Bridge18

Inspection & Ownership

Last InspectionMarch 2023
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour CriticalNot applicable
Structure Number210310003907203

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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