Structure 150150B38350010 · Bexar County, TX

S Zarzamora over Comanche Creek

Carries S Zarzamora over Comanche Creek, 1.80 Mi SW Of IH 410.

Overall conditionGood

Set by its lowest-rated component: Culvert at 7 of 9.

How ratings work
Culvertsets 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 FT147 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 7/9

A culvert 147 ft across with 13 openings: about 2 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, so those are drawn as typical for a culvert.

Built200521 years old
Length147.0 ft44.8 m
Daily traffic5,000counted 2013
Last inspectedJuly 2023every 24 months

Location

StateTexas
CountyBexar
Location1.80 Mi SW Of IH 410
CarriesS Zarzamora
CrossesComanche Creek
Coordinates29.29845, -98.54621

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length147.0 ft (44.8 m)
Max Span9.8 ft (3 m)
Deck Width80.1 ft (24.4 m)
Deck Area1093.1 sq m
Main Spans13
Year Built2005

Traffic

Avg Daily Traffic5,000 (2013)
Lanes On Bridge4

Inspection & Ownership

Last InspectionJuly 2023
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number150150B38350010

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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