Structure 150150007309089 · Bexar County, TX

IH 37 NB over San Antonio River

Carries IH 37 NB over San Antonio River, 1.10 Mi N Of Loop 1604.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,310 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

1,310 ft end to end, longest span 90 ft: about 3.6 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.

Built1968rebuilt 2009
Length1310.0 ft399.3 m
Daily traffic17,079counted 2016
Last inspectedAugust 2024every 24 months

Location

StateTexas
CountyBexar
Location1.10 Mi N Of Loop 1604
CarriesIH 37 NB
CrossesSan Antonio River
Coordinates29.23448, -98.40328

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length1310.0 ft (399.3 m)
Max Span89.9 ft (27.4 m)
Deck Width42.0 ft (12.8 m)
Deck Area5111.0 sq m
Main Spans4
Year Built1968 (reconstructed 2009)

Traffic

Avg Daily Traffic17,079 (2016)
Truck Traffic11%
Lanes On Bridge2

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour Critical8 — Stable, low risk
Structure Number150150007309089

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.

Nearby Bridges