Structure 150150007308122 · Bexar County, TX

US 281 SB over San Antonio River

Carries US 281 SB over San Antonio River, 0.65 Mi NW Of IH 35.

Overall conditionGood

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

How ratings work
Deck8/9 · Very Good
Superstructure8/9 · Very 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 FT180 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 7/9 · sets the rating

180 ft end to end, longest span 70 ft: about 3 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.

Built197650 years old
Length180.1 ft54.9 m
Daily traffic65,531counted 2023
Last inspectedAugust 2024every 24 months

Location

StateTexas
CountyBexar
Location0.65 Mi NW Of IH 35
CarriesUS 281 SB
CrossesSan Antonio River
Coordinates29.44735, -98.48068

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length180.1 ft (54.9 m)
Max Span69.9 ft (21.3 m)
Deck Width69.9 ft (21.3 m)
Deck Area1169.4 sq m
Main Spans3
Year Built1976

Traffic

Avg Daily Traffic65,531 (2023)
Truck Traffic3%
Lanes On Bridge4

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour Critical8 — Stable, low risk
Structure Number150150007308122

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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