Structure 210310113602196 · Cameron County, TX

FM 800 over Arroyo Colorado

Carries FM 800 over Arroyo Colorado, 1.3 Mi N Of FM 3067.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructure8/9 · Very Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,365 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 7/9 · sets the ratingSubstructure 8/9

1,365 ft end to end, longest span 105 ft: about 3.8 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.

Built201214 years old
Length1365.2 ft416.1 m
Daily traffic1,525counted 2023
Last inspectedMarch 2023every 24 months

Location

StateTexas
CountyCameron
Location1.3 Mi N Of FM 3067
CarriesFM 800
CrossesArroyo Colorado
Coordinates26.13686, -97.78439

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length1365.2 ft (416.1 m)
Max Span105.0 ft (32 m)
Deck Width54.1 ft (16.5 m)
Deck Area6865.6 sq m
Main Spans13
Year Built2012

Traffic

Avg Daily Traffic1,525 (2023)
Truck Traffic20%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMarch 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical6 — Scour calculated, stable
Structure Number210310113602196

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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