Structure 220640003708028 · Dimmit County, TX

US 83 over Dillon Creek

Carries US 83 over Dillon Creek, 2.30 Mi S Of FM 133.

Overall conditionFair

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

How ratings work
Culvertsets the rating6/9 · Satisfactory
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT60 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 6/9

A culvert 60 ft across with 9 openings. Lengths and the car 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, so those are drawn as typical for a culvert.

Built1932rebuilt 1963
Length60.0 ft18.3 m
Daily traffic3,473counted 2020
Last inspectedDecember 2022every 24 months

Location

StateTexas
CountyDimmit
Location2.30 Mi S Of FM 133
CarriesUS 83
CrossesDillon Creek
Coordinates28.30430, -99.61414

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length60.0 ft (18.3 m)
Max Span5.9 ft (1.8 m)
Deck Width57.7 ft (17.6 m)
Deck Area322.1 sq m
Main Spans9
Year Built1932 (reconstructed 1963)

Traffic

Avg Daily Traffic3,473 (2020)
Truck Traffic27%
Lanes On Bridge2

Inspection & Ownership

Last InspectionDecember 2022
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour Critical7 — Countermeasures installed
Structure Number220640003708028

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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