Structure 142270341701412 · Travis County, TX

FM 734 WB over Walnut Crk Trib/ Cmta Rr

Carries FM 734 WB over Walnut Crk Trib/ Cmta Rr, 0.2 Mi W Of Lp 1.

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 FT456 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

456 ft end to end, longest span 81 ft: about 6 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.

Built1990rebuilt 2006
Length456.0 ft139 m
Daily traffic18,811counted 2020
Last inspectedFebruary 2023every 24 months

Location

StateTexas
CountyTravis
Location0.2 Mi W Of Lp 1
CarriesFM 734 WB
CrossesWalnut Crk Trib/ Cmta Rr
Coordinates30.42056, -97.70424

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length456.0 ft (139 m)
Max Span81.0 ft (24.7 m)
Deck Width75.1 ft (22.9 m)
Deck Area3183.1 sq m
Main Spans6
Year Built1990 (reconstructed 2006)

Traffic

Avg Daily Traffic18,811 (2020)
Truck Traffic4%
Lanes On Bridge4

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 Number142270341701412

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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