Structure 121020325601140 · Harris County, TX

Bw 8 SB Exit Rp D over Buffalo Bayou

Carries Bw 8 SB Exit Rp D over Buffalo Bayou, 1.8 Mi N Of Westheimer RD.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructure7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT534 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 7/9

534 ft end to end, longest span 120 ft: about 7 semi-trucks nose to tail. 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.

Built198739 years old
Length534.1 ft162.8 m
Daily traffic5,946counted 2024
Last inspectedNovember 2024every 24 months

Location

StateTexas
CountyHarris
Location1.8 Mi N Of Westheimer RD
CarriesBw 8 SB Exit Rp D
CrossesBuffalo Bayou
Coordinates29.76278, -95.55875

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length534.1 ft (162.8 m)
Max Span120.1 ft (36.6 m)
Deck Width25.9 ft (7.9 m)
Deck Area1286.1 sq m
Main Spans4
Year Built1987

Traffic

Avg Daily Traffic5,946 (2024)
Truck Traffic7%
Lanes On Bridge1

Inspection & Ownership

Last InspectionNovember 2024
Inspection FrequencyEvery 24 months
OwnerLocal Toll Authority
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number121020325601140

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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