Structure 150150007212205 · Bexar County, TX

IH 10 EB Elev Ml over W Magnolia To N Frio ST

Carries IH 10 EB Elev Ml over W Magnolia To N Frio ST, IH 10 Inbound Dwntwn Y.

Overall conditionFair

Set by its lowest-rated component: Substructure at 5 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructure7/9 · Good
Substructuresets the rating5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
8,040 FT OVERALL1,000 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 7/9Substructure 5/9 · sets the rating

8,040 ft end to end, longest span 112 ft: about 22 football fields, or 1.5 miles. Lengths are drawn to scale; at this length a semi-truck would be a speck. 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 segmental box-girder bridge.

Built199333 years old
Length8040.0 ft2450.6 m
Daily traffic—reported figure implausible
Last inspectedJuly 2024every 24 months

Location

StateTexas
CountyBexar
LocationIH 10 Inbound Dwntwn Y
CarriesIH 10 EB Elev Ml
CrossesW Magnolia To N Frio ST
Coordinates29.44278, -98.51467

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignSegmental Box Girder
Total Length8040.0 ft (2450.6 m)
Max Span111.9 ft (34.1 m)
Deck Width63.6 ft (19.4 m)
Deck Area47541.6 sq m
Main Spans79
Year Built1993

Traffic

Avg Daily Traffic193,223 (2023)
That is about 64,407 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 Traffic5%
Lanes On Bridge3
Lanes Under Bridge28

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 Number150150007212205

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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