Structure 121020027106583 · Harris County, TX

IH 10 WB over Katy-fort Bend Rd.

Carries IH 10 WB over Katy-fort Bend Rd., 1.50 Mi W Of SH 99.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT2,547 FT OVERALL500 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

2,547 ft end to end, longest span 121 ft: about 7.1 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.

Built200521 years old
Length2546.9 ft776.3 m
Daily traffic57,127counted 2019
Last inspectedNovember 2024every 24 months

Location

StateTexas
CountyHarris
Location1.50 Mi W Of SH 99
CarriesIH 10 WB
CrossesKaty-fort Bend Rd.
Coordinates29.78552, -95.80081

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length2546.9 ft (776.3 m)
Max Span121.1 ft (36.9 m)
Deck Width90.6 ft (27.6 m)
Deck Area21425.9 sq m
Main Spans22
Year Built2005

Traffic

Avg Daily Traffic57,127 (2019)
Truck Traffic10%
Lanes On Bridge5
Lanes Under Bridge16

Inspection & Ownership

Last InspectionNovember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number121020027106583

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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