Structure 150150B07510005 · Bexar County, TX

W Commerce ST over Alazan Creek

Carries W Commerce ST over Alazan Creek, .14 Mi W Of N Colorado ST.

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
SEMI-TRUCK · 72 FT197 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

197 ft end to end, longest span 54 ft: about 3 semi-trucks nose to tail. 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 slab bridge.

Built196363 years old
Length196.9 ft60 m
Daily traffic9,205counted 2020
Last inspectedMay 2023every 24 months

Location

StateTexas
CountyBexar
Location.14 Mi W Of N Colorado ST
CarriesW Commerce ST
CrossesAlazan Creek
Coordinates29.42690, -98.51334

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length196.9 ft (60 m)
Max Span54.1 ft (16.5 m)
Deck Width51.5 ft (15.7 m)
Deck Area942 sq m
Main Spans4
Year Built1963

Traffic

Avg Daily Traffic9,205 (2020)
Lanes On Bridge3

Inspection & Ownership

Last InspectionMay 2023
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour Critical5 — Stable for scour
Structure Number150150B07510005

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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