Structure 150150210402008 · Bexar County, TX

FM 3487 over Culebra Creek

Carries FM 3487 over Culebra Creek, 0.12 Mi S Of FM 471.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
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 FT400 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

400 ft end to end, longest span 25 ft: about 6 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.

Built1987rebuilt 2009
Length399.9 ft121.9 m
Daily traffic33,568counted 2020
Last inspectedJune 2023every 24 months

Location

StateTexas
CountyBexar
Location0.12 Mi S Of FM 471
CarriesFM 3487
CrossesCulebra Creek
Coordinates29.48249, -98.66732

Physical Characteristics

MaterialConcrete
DesignSlab
Total Length399.9 ft (121.9 m)
Max Span24.9 ft (7.6 m)
Deck Width106.0 ft (32.3 m)
Deck Area3937.4 sq m
Main Spans16
Year Built1987 (reconstructed 2009)

Traffic

Avg Daily Traffic33,568 (2020)
Truck Traffic1%
Lanes On Bridge6

Inspection & Ownership

Last InspectionJune 2023
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number150150210402008

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