Structure 150830042103003 · Frio County, TX

SH 173 over Smith Branch

Carries SH 173 over Smith Branch, 0.90 Mi SE Of FM 472.

Overall conditionGood

Set by its lowest-rated component: Culvert at 7 of 9.

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

Elevation

Side view, colored by inspection rating
CAR · 15 FT40 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 7/9

A culvert 40 ft across with 6 openings. Lengths and the car 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, so those are drawn as typical for a culvert.

Built1938rebuilt 2003
Length40.0 ft12.2 m
Daily traffic3,112counted 2016
Last inspectedJuly 2024every 24 months

Location

StateTexas
CountyFrio
Location0.90 Mi SE Of FM 472
CarriesSH 173
CrossesSmith Branch
Coordinates29.07912, -98.85416

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length40.0 ft (12.2 m)
Max Span5.9 ft (1.8 m)
Deck Width60.0 ft (18.3 m)
Deck Area223.3 sq m
Main Spans6
Year Built1938 (reconstructed 2003)

Traffic

Avg Daily Traffic3,112 (2016)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour Critical6 — Scour calculated, stable
Structure Number150830042103003

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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