Structure 150150007308080 · Bexar County, TX

Spur 122 / US 181 over IH 37

Carries Spur 122 / US 181 over IH 37, 1.80 Mi S Of IH 410.

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
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT290 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 6/9 · sets the ratingSubstructure 7/9

290 ft end to end, longest span 80 ft: about 4 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.

Built196759 years old
Length290.0 ft88.4 m
Daily traffic16,337counted 2016
Last inspectedAugust 2024every 24 months

Location

StateTexas
CountyBexar
Location1.80 Mi S Of IH 410
CarriesSpur 122 / US 181
CrossesIH 37
Coordinates29.30759, -98.39934

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length290.0 ft (88.4 m)
Max Span80.1 ft (24.4 m)
Deck Width35.4 ft (10.8 m)
Deck Area954.7 sq m
Main Spans4
Year Built1967

Traffic

Avg Daily Traffic16,337 (2016)
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour CriticalNot applicable
Structure Number150150007308080

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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