Structure 142460137802433 · Williamson County, TX

FM 1431 WB over Spanish Oak Creek

Carries FM 1431 WB over Spanish Oak Creek, 2.1 Mi E Of US 183.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure8/9 · Very Good
Substructure7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT285 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 8/9Substructure 7/9

285 ft end to end, longest span 95 ft: about 4 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.

Built20188 years old
Length285.1 ft86.9 m
Daily traffic22,200counted 2021
Last inspectedJanuary 2025every 24 months

Location

StateTexas
CountyWilliamson
Location2.1 Mi E Of US 183
CarriesFM 1431 WB
CrossesSpanish Oak Creek
Coordinates30.53068, -97.79630

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length285.1 ft (86.9 m)
Max Span95.1 ft (29 m)
Deck Width54.1 ft (16.5 m)
Deck Area1433.8 sq m
Main Spans3
Year Built2018

Traffic

Avg Daily Traffic22,200 (2021)
Truck Traffic4%
Lanes On Bridge3

Inspection & Ownership

Last InspectionJanuary 2025
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number142460137802433

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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