Structure 150150007212366 · Bexar County, TX

IH 35 NB over IH 10 WB / Drain

Carries IH 35 NB over IH 10 WB / Drain, Downtown Y.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,377 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 7/9

1,377 ft end to end, longest span 95 ft: about 3.8 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.

Built199135 years old
Length1377.0 ft419.7 m
Daily traffic—reported figure implausible
Last inspectedJuly 2024every 24 months

Location

StateTexas
CountyBexar
LocationDowntown Y
CarriesIH 35 NB
CrossesIH 10 WB / Drain
Coordinates29.43074, -98.50025

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length1377.0 ft (419.7 m)
Max Span95.1 ft (29 m)
Deck Width40.0 ft (12.2 m)
Deck Area5120.3 sq m
Main Spans8
Year Built1991

Traffic

Avg Daily Traffic139,713 (2023)
That is about 69,856 vehicles per lane per day — beyond what any U.S. road carries (the busiest freeways run about 25,000–30,000). It is almost certainly a data-entry error in the National Bridge Inventory, so we leave this bridge out of traffic rankings.
Truck Traffic11%
Lanes On Bridge2
Lanes Under Bridge7

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number150150007212366

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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