Structure 121020050801452 · Harris County, TX

Bw 8 SB over Ih10 Uprr Carpenter Byu

Carries Bw 8 SB over Ih10 Uprr Carpenter Byu, IH 10 At Bw 8 E Interchg.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT3,727 FT OVERALL500 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

3,727 ft end to end, longest span 125 ft: about 10 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.

Built199432 years old
Length3727.0 ft1,136 m
Daily traffic32,776counted 2023
Last inspectedOctober 2024every 24 months

Location

StateTexas
CountyHarris
LocationIH 10 At Bw 8 E Interchg
CarriesBw 8 SB
CrossesIh10 Uprr Carpenter Byu
Coordinates29.77099, -95.15359

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length3727.0 ft (1,136 m)
Max Span125.0 ft (38.1 m)
Deck Width61.7 ft (18.8 m)
Deck Area21356.8 sq m
Main Spans28
Year Built1994

Traffic

Avg Daily Traffic32,776 (2023)
Truck Traffic14%
Lanes On Bridge2
Lanes Under Bridge20

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number121020050801452

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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