Structure 142270B01890001 · Travis County, TX

Montana ST over Carson Creek

Carries Montana ST over Carson Creek, 0.27 Mi SE Of Vargas RD.

Overall conditionFair

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

How ratings work
Culvertsets the rating6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT34 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 6/9

A culvert 34 ft across with 4 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.

Built199531 years old
Length34.1 ft10.4 m
Daily traffic833counted 2020
Last inspectedMay 2024every 24 months

Location

StateTexas
CountyTravis
Location0.27 Mi SE Of Vargas RD
CarriesMontana ST
CrossesCarson Creek
Coordinates30.22929, -97.69202

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length34.1 ft (10.4 m)
Max Span6.9 ft (2.1 m)
Deck Area114.4 sq m
Main Spans4
Year Built1995

Traffic

Avg Daily Traffic833 (2020)
Truck Traffic3%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMay 2024
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number142270B01890001

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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