Structure 120200AA0473002 · Brazoria County, TX

CR 400 over Drainage Ditch

Carries CR 400 over Drainage Ditch, 1.10 Mi W Of FM 2004.

Overall conditionGood

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

How ratings work
Culvertsets the rating7/9 · Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT32 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 7/9

A culvert 32 ft across with 3 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.

Built198937 years old
Length32.2 ft9.8 m
Daily traffic1,194counted 2016
Last inspectedNovember 2023every 24 months

Location

StateTexas
CountyBrazoria
Location1.10 Mi W Of FM 2004
CarriesCR 400
CrossesDrainage Ditch
Coordinates29.02273, -95.49390

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length32.2 ft (9.8 m)
Max Span7.9 ft (2.4 m)
Deck Area59.8 sq m
Main Spans3
Year Built1989

Traffic

Avg Daily Traffic1,194 (2016)
Truck Traffic9%
Lanes On Bridge2

Inspection & Ownership

Last InspectionNovember 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number120200AA0473002

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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