Structure 120200D00615001 · Brazoria County, TX

E House ST over Mustang Bayou

Carries E House ST over Mustang Bayou, 0.45 Mi E Of Bus 35.

Overall conditionGood

Set by its lowest-rated component: Deck and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructuresets the rating7/9 · Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT87 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 7/9 · sets the rating

87 ft end to end, longest span 29 ft. 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 slab bridge.

Built199828 years old
Length86.9 ft26.5 m
Daily traffic5,500counted 2017
Last inspectedNovember 2023every 24 months

Location

StateTexas
CountyBrazoria
Location0.45 Mi E Of Bus 35
CarriesE House ST
CrossesMustang Bayou
Coordinates29.41880, -95.23677

Physical Characteristics

MaterialPrestressed Concrete
DesignSlab
Total Length86.9 ft (26.5 m)
Max Span28.9 ft (8.8 m)
Deck Width47.2 ft (14.4 m)
Deck Area381.6 sq m
Main Spans3
Year Built1998

Traffic

Avg Daily Traffic5,500 (2017)
Lanes On Bridge3

Inspection & Ownership

Last InspectionNovember 2023
Inspection FrequencyEvery 24 months
OwnerTown/Township Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number120200D00615001

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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