Structure 150150007308129 · Bexar County, TX

US 281 over Drain

Carries US 281 over Drain, 1.35 Mi S Of IH 410.

Overall conditionFair

Set by its lowest-rated component: Culvert at 6 of 9.

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

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT144 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 6/9

A culvert 144 ft across with 9 openings: about 2 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, so those are drawn as typical for a culvert.

Built1976rebuilt 2008
Length144.0 ft43.9 m
Daily traffic120,955counted 2023
Last inspectedAugust 2024every 24 months

Location

StateTexas
CountyBexar
Location1.35 Mi S Of IH 410
CarriesUS 281
CrossesDrain
Coordinates29.50289, -98.48057

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length144.0 ft (43.9 m)
Max Span9.8 ft (3 m)
Deck Area2300.4 sq m
Main Spans9
Year Built1976 (reconstructed 2008)

Traffic

Avg Daily Traffic120,955 (2023)
Truck Traffic3%
Lanes On Bridge12

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 Number150150007308129

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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