Structure 150150B24355005 · Bexar County, TX

Navarro ST over San Antonio River

Carries Navarro ST over San Antonio River, 0.05 Mi SE Of N ST Marys.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT77 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

77 ft end to end, longest span 38 ft. Lengths and the car 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 tee-beam bridge.

Built1921105 years old
Length77.1 ft23.5 m
Daily traffic2,048counted 2020
Last inspectedAugust 2023every 24 months

Location

StateTexas
CountyBexar
Location0.05 Mi SE Of N ST Marys
CarriesNavarro ST
CrossesSan Antonio River
Coordinates29.43085, -98.49026

Physical Characteristics

MaterialConcrete Continuous
DesignTee Beam
Total Length77.1 ft (23.5 m)
Max Span38.1 ft (11.6 m)
Deck Width57.7 ft (17.6 m)
Deck Area413.6 sq m
Main Spans2
Year Built1921

Traffic

Avg Daily Traffic2,048 (2020)
Lanes On Bridge3

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is eligible for the National Register
Scour Critical7 — Countermeasures installed
Structure Number150150B24355005

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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