Structure 142460015105018 · Williamson County, TX

US 183 over Spanish Oak Creek

Carries US 183 over Spanish Oak Creek, 9.6 Mi S Of SH 29.

Overall conditionFair

Set by its lowest-rated component: Culvert at 5 of 9.

How ratings work
Culvertsets the rating5/9 · Fair
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT37 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 5/9

A culvert 37 ft across with 8 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.

Built1927rebuilt 1981
Length37.1 ft11.3 m
Daily traffic30,252counted 2020
Last inspectedFebruary 2023every 24 months

Location

StateTexas
CountyWilliamson
Location9.6 Mi S Of SH 29
CarriesUS 183
CrossesSpanish Oak Creek
Coordinates30.52456, -97.83177

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length37.1 ft (11.3 m)
Max Span3.9 ft (1.2 m)
Deck Width78.4 ft (23.9 m)
Deck Area270.1 sq m
Main Spans8
Year Built1927 (reconstructed 1981)

Traffic

Avg Daily Traffic30,252 (2020)
Truck Traffic2%
Lanes On Bridge5

Inspection & Ownership

Last InspectionFebruary 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour Critical8 — Stable, low risk
Structure Number142460015105018

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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