Structure 21270001902046 · Johnson County, TX

SH 171/174 over East Buffalo Creek

Carries SH 171/174 over East Buffalo Creek, 0.02 Mi S Of FM 4.

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 overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT370 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

370 ft end to end, longest span 62 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.

Built200224 years old
Length370.1 ft112.8 m
Daily traffic23,357counted 2024
Last inspectedOctober 2024every 24 months

Location

StateTexas
CountyJohnson
Location0.02 Mi S Of FM 4
CarriesSH 171/174
CrossesEast Buffalo Creek
Coordinates32.33695, -97.38376

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length370.1 ft (112.8 m)
Max Span61.7 ft (18.8 m)
Deck Width98.4 ft (30 m)
Deck Area3,384 sq m
Main Spans6
Year Built2002

Traffic

Avg Daily Traffic23,357 (2024)
Truck Traffic5%
Lanes On Bridge4

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number021270001902046

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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