Structure 121020050003357 · Harris County, TX

IH 45 Hov/xtimbrs over IH 45 Median

Carries IH 45 Hov/xtimbrs over IH 45 Median, 0.30 Mi S Of Crosstimber.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,907 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 7/9

1,907 ft end to end, longest span 97 ft: about 5.3 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.

Built199927 years old
Length1907.2 ft581.3 m
Daily traffic24,590counted 2021
Last inspectedNovember 2024every 24 months

Location

StateTexas
CountyHarris
Location0.30 Mi S Of Crosstimber
CarriesIH 45 Hov/xtimbrs
CrossesIH 45 Median
Coordinates29.82424, -95.37995

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length1907.2 ft (581.3 m)
Max Span97.1 ft (29.6 m)
Deck Width23.0 ft (7 m)
Deck Area4069.1 sq m
Main Spans3
Year Built1999

Traffic

Avg Daily Traffic24,590 (2021)
Truck Traffic7%
Lanes On Bridge1
Lanes Under Bridge8

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 Number121020050003357

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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