Structure 121020050801448 · Harris County, TX

Ih10 EB To Bw8 NB over IH 10 Bw 8 Connectors

Carries Ih10 EB To Bw8 NB over IH 10 Bw 8 Connectors, IH 10 At Bw 8 E Interchg.

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 overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,765 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 7/9 · sets the rating

1,765 ft end to end, longest span 221 ft: about 4.9 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
Length1765.1 ft538 m
Daily traffic7,500counted 2008
Last inspectedNovember 2024every 24 months

Location

StateTexas
CountyHarris
LocationIH 10 At Bw 8 E Interchg
CarriesIh10 EB To Bw8 NB
CrossesIH 10 Bw 8 Connectors
Coordinates29.77066, -95.15841

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length1765.1 ft (538 m)
Max Span221.1 ft (67.4 m)
Deck Width29.2 ft (8.9 m)
Deck Area4788.2 sq m
Main Spans5
Year Built1994

Traffic

Avg Daily Traffic7,500 (2008)
Truck Traffic2%
Lanes On Bridge1
Lanes Under Bridge22

Inspection & Ownership

Last InspectionNovember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical6 — Scour calculated, stable
Structure Number121020050801448

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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