Structure 142460175503004 · Williamson County, TX

FM 3405 over Draw

Carries FM 3405 over Draw, 2.00 Mi E Of US 183.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT331 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

331 ft end to end, longest span 33 ft: about 5 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.

Built197947 years old
Length331.0 ft100.9 m
Daily traffic2,715counted 2020
Last inspectedJanuary 2025every 24 months

Location

StateTexas
CountyWilliamson
Location2.00 Mi E Of US 183
CarriesFM 3405
CrossesDraw
Coordinates30.70375, -97.84657

Physical Characteristics

MaterialConcrete
DesignStringer/Multi-beam
Total Length331.0 ft (100.9 m)
Max Span33.1 ft (10.1 m)
Deck Width28.2 ft (8.6 m)
Deck Area867.7 sq m
Main Spans10
Year Built1979

Traffic

Avg Daily Traffic2,715 (2020)
Truck Traffic10%
Lanes On Bridge2

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 Number142460175503004

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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