Structure 150150002502169 · Bexar County, TX

IH 10 EB over IH 37 Conn

Carries IH 10 EB over IH 37 Conn, IH 10 @ IH 37.

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 FT217 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 6/9 · sets the ratingSubstructure 7/9

217 ft end to end, longest span 54 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.

Built196759 years old
Length216.9 ft66.1 m
Daily traffic—reported figure implausible
Last inspectedJune 2024every 24 months

Location

StateTexas
CountyBexar
LocationIH 10 @ IH 37
CarriesIH 10 EB
CrossesIH 37 Conn
Coordinates29.39500, -98.47818

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length216.9 ft (66.1 m)
Max Span54.1 ft (16.5 m)
Deck Width54.5 ft (16.6 m)
Deck Area1097.3 sq m
Main Spans4
Year Built1967

Traffic

Avg Daily Traffic156,508 (2023)
That is about 52,169 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 Traffic10%
Lanes On Bridge3
Lanes Under Bridge3

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour CriticalNot applicable
Structure Number150150002502169

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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