Structure 150150001710300 · Bexar County, TX

IH 37 NB Conn 3 over IH 35 NB Conn 2 Etc

Carries IH 37 NB Conn 3 over IH 35 NB Conn 2 Etc, IH 35 & IH 37 Interchange.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT883 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 7/9

883 ft end to end, longest span 95 ft: about 2.5 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
Length882.9 ft269.1 m
Daily traffic20,861counted 2022
Last inspectedJune 2024every 24 months

Location

StateTexas
CountyBexar
LocationIH 35 & IH 37 Interchange
CarriesIH 37 NB Conn 3
CrossesIH 35 NB Conn 2 Etc
Coordinates29.43958, -98.48029

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length882.9 ft (269.1 m)
Max Span95.1 ft (29 m)
Deck Width25.6 ft (7.8 m)
Deck Area2099.0 sq m
Main Spans10
Year Built1972

Traffic

Avg Daily Traffic20,861 (2022)
Truck Traffic11%
Lanes On Bridge1
Lanes Under Bridge8

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour CriticalNot applicable
Structure Number150150001710300

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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