Structure 121020027116376 · Harris County, TX

IH 610 SB Off Ramp over Brays Bayou & Braeswood

Carries IH 610 SB Off Ramp over Brays Bayou & Braeswood, 1.9 Mi W Of US 90a.

Overall conditionFair

Set by its lowest-rated component: Superstructure at 5 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating5/9 · Fair
Substructure7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,113 FT OVERALL200 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 7/9

1,113 ft end to end, longest span 71 ft: about 3.1 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.

Built197155 years old
Length1112.9 ft339.2 m
Daily traffic20,130counted 2024
Last inspectedNovember 2024every 24 months

Location

StateTexas
CountyHarris
Location1.9 Mi W Of US 90a
CarriesIH 610 SB Off Ramp
CrossesBrays Bayou & Braeswood
Coordinates29.68027, -95.45965

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length1112.9 ft (339.2 m)
Max Span70.9 ft (21.6 m)
Deck Width41.3 ft (12.6 m)
Deck Area4273.9 sq m
Main Spans14
Year Built1971

Traffic

Avg Daily Traffic20,130 (2024)
Truck Traffic6%
Lanes On Bridge2
Lanes Under Bridge13

Inspection & Ownership

Last InspectionNovember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour Critical5 — Stable for scour
Structure Number121020027116376

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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