Structure 142460341702003 · Williamson County, TX

FM 734 WB over Lake Creek

Carries FM 734 WB over Lake Creek, 0.9 Mi S Of FM 620.

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 FT325 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

325 ft end to end, longest span 65 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.

Built199036 years old
Length325.1 ft99.1 m
Daily traffic23,278counted 2019
Last inspectedFebruary 2023every 24 months

Location

StateTexas
CountyWilliamson
Location0.9 Mi S Of FM 620
CarriesFM 734 WB
CrossesLake Creek
Coordinates30.46502, -97.75889

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length325.1 ft (99.1 m)
Max Span65.0 ft (19.8 m)
Deck Width52.2 ft (15.9 m)
Deck Area1575.7 sq m
Main Spans5
Year Built1990

Traffic

Avg Daily Traffic23,278 (2019)
Truck Traffic4%
Lanes On Bridge3

Inspection & Ownership

Last InspectionFebruary 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number142460341702003

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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