Structure 150150084901024 · Bexar County, TX

FM 471 over Culebra Creek

Carries FM 471 over Culebra Creek, 0.7 Mi SE Of Lp 1604.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT340 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 6/9 · sets the ratingSubstructure 7/9

340 ft end to end, longest span 68 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.

Built199135 years old
Length339.9 ft103.6 m
Daily traffic33,644counted 2020
Last inspectedJune 2023every 24 months

Location

StateTexas
CountyBexar
Location0.7 Mi SE Of Lp 1604
CarriesFM 471
CrossesCulebra Creek
Coordinates29.48967, -98.69442

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length339.9 ft (103.6 m)
Max Span67.9 ft (20.7 m)
Deck Width78.1 ft (23.8 m)
Deck Area2465.7 sq m
Main Spans5
Year Built1991

Traffic

Avg Daily Traffic33,644 (2020)
Truck Traffic4%
Lanes On Bridge5

Inspection & Ownership

Last InspectionJune 2023
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number150150084901024

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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