Structure 130900AA0405001 · Gonzales County, TX

Co RD 405 over Obar Creek

Carries Co RD 405 over Obar Creek, 0.75 Mi N Of FM 1680.

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 overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT55 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

55 ft end to end. 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 multi-beam bridge.

Built200620 years old
Length55.1 ft16.8 m
Daily traffic32counted 2022
Last inspectedNovember 2023every 24 months

Location

StateTexas
CountyGonzales
Location0.75 Mi N Of FM 1680
CarriesCo RD 405
CrossesObar Creek
Coordinates29.63939, -97.21446

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length55.1 ft (16.8 m)
Max Span53.1 ft (16.2 m)
Deck Width16.7 ft (5.1 m)
Deck Area85.7 sq m
Main Spans1
Year Built2006

Traffic

Avg Daily Traffic32 (2022)
Truck Traffic3%
Lanes On Bridge1

Inspection & Ownership

Last InspectionNovember 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number130900AA0405001

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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