Structure 150150001710295 · Bexar County, TX

IH 37 NB US 281 NB over IH 35 Etc

Carries IH 37 NB US 281 NB over IH 35 Etc, IH 35 & IH 37 Interchange.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT3,143 FT OVERALL500 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

3,143 ft end to end, longest span 130 ft: about 8.7 football fields. 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.

Built197254 years old
Length3143.0 ft958 m
Daily traffic127,190counted 2022
Last inspectedJune 2024every 24 months

Location

StateTexas
CountyBexar
LocationIH 35 & IH 37 Interchange
CarriesIH 37 NB US 281 NB
CrossesIH 35 Etc
Coordinates29.43684, -98.47695

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length3143.0 ft (958 m)
Max Span129.9 ft (39.6 m)
Deck Width61.4 ft (18.7 m)
Deck Area17914.6 sq m
Main Spans6
Year Built1972

Traffic

Avg Daily Traffic127,190 (2022)
Truck Traffic5%
Lanes On Bridge4
Lanes Under Bridge32

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour CriticalNot applicable
Structure Number150150001710295

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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