Structure 150150001710339 · Bexar County, TX

IH 35 SB Up Level over Guadalupe ST To S Laredo

Carries IH 35 SB Up Level over Guadalupe ST To S Laredo, Downtown Y.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT3,289 FT OVERALL500 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 6/9 · sets the rating

3,289 ft end to end, longest span 100 ft: about 9.1 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 segmental box-girder bridge.

Built198937 years old
Length3289.0 ft1002.5 m
Daily traffic—reported figure implausible
Last inspectedMay 2024every 24 months

Location

StateTexas
CountyBexar
LocationDowntown Y
CarriesIH 35 SB Up Level
CrossesGuadalupe ST To S Laredo
Coordinates29.41165, -98.50783

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignSegmental Box Girder
Total Length3289.0 ft (1002.5 m)
Max Span100.1 ft (30.5 m)
Deck Width51.2 ft (15.6 m)
Deck Area15,639 sq m
Main Spans35
Year Built1989

Traffic

Avg Daily Traffic173,066 (2022)
That is about 86,533 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 Traffic9%
Lanes On Bridge2
Lanes Under Bridge13

Inspection & Ownership

Last InspectionMay 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number150150001710339

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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