Structure 120200059802472 · Brazoria County, TX

Bctra SB To SH 288 over SH 288 SB And H Slough

Carries Bctra SB To SH 288 over SH 288 SB And H Slough, 0.5 Mi N Of FM 518.

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 overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,342 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 7/9 · sets the rating

1,342 ft end to end, longest span 124 ft: about 3.7 football fields. Lengths and the semi-truck 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.

Built20233 years old
Length1341.9 ft409 m
Daily traffic4,127counted 2023
Last inspectedOctober 2024every 24 months

Location

StateTexas
CountyBrazoria
Location0.5 Mi N Of FM 518
CarriesBctra SB To SH 288
CrossesSH 288 SB And H Slough
Coordinates29.56616, -95.38718

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length1341.9 ft (409 m)
Max Span124.3 ft (37.9 m)
Deck Width26.2 ft (8 m)
Deck Area3,272 sq m
Main Spans11
Year Built2023

Traffic

Avg Daily Traffic4,127 (2023)
Truck Traffic9%
Lanes On Bridge1
Lanes Under Bridge3

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical6 — Scour calculated, stable
Structure Number120200059802472

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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