Structure 170940AA0143001 · Grimes County, TX

CR 143 over Bowman Creek

Carries CR 143 over Bowman Creek, 2.46 Mi W Of SH 90.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT40 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 7/9

40 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.

Built201313 years old
Length40.0 ft12.2 m
Daily traffic20counted 2013
Last inspectedFebruary 2024every 24 months

Location

StateTexas
CountyGrimes
Location2.46 Mi W Of SH 90
CarriesCR 143
CrossesBowman Creek
Coordinates30.83638, -95.98238

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length40.0 ft (12.2 m)
Max Span40.0 ft (12.2 m)
Deck Width16.1 ft (4.9 m)
Deck Area59.8 sq m
Main Spans1
Year Built2013

Traffic

Avg Daily Traffic20 (2013)
Lanes On Bridge1

Inspection & Ownership

Last InspectionFebruary 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number170940AA0143001

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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