Structure 142460001509186 · Williamson County, TX

IH 35 Ml & Nbfr over Draw

Carries IH 35 Ml & Nbfr over Draw, 0.8 Mi S Of FM 620.

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 FT74 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 6/9

A culvert 74 ft across with 7 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.

Built1960rebuilt 1990
Length74.1 ft22.6 m
Daily traffic209,037counted 2021
Last inspectedJanuary 2023every 24 months

Location

StateTexas
CountyWilliamson
Location0.8 Mi S Of FM 620
CarriesIH 35 Ml & Nbfr
CrossesDraw
Coordinates30.49905, -97.68087

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length74.1 ft (22.6 m)
Max Span6.9 ft (2.1 m)
Deck Area1177.5 sq m
Main Spans7
Year Built1960 (reconstructed 1990)

Traffic

Avg Daily Traffic209,037 (2021)
Truck Traffic10%
Lanes On Bridge11

Inspection & Ownership

Last InspectionJanuary 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour Critical8 — Stable, low risk
Structure Number142460001509186

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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