Structure 120200AA1097001 · Brazoria County, TX

Old SH 36 over Brazos River Rel

Carries Old SH 36 over Brazos River Rel, 0.15 Mi E Of SH 36.

Overall conditionGood

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

How ratings work
Culvertsets the rating7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT41 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 7/9

A culvert 41 ft across with 6 openings. 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, so those are drawn as typical for a culvert.

Built1931rebuilt 1958
Length41.0 ft12.5 m
Daily traffic760counted 2012
Last inspectedNovember 2023every 24 months

Location

StateTexas
CountyBrazoria
Location0.15 Mi E Of SH 36
CarriesOld SH 36
CrossesBrazos River Rel
Coordinates28.96550, -95.40484

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length41.0 ft (12.5 m)
Max Span5.9 ft (1.8 m)
Deck Area91.2 sq m
Main Spans6
Year Built1931 (reconstructed 1958)

Traffic

Avg Daily Traffic760 (2012)
Truck Traffic1%
Lanes On Bridge2

Inspection & Ownership

Last InspectionNovember 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour Critical8 — Stable, low risk
Structure Number120200AA1097001

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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