Structure 121020027115346 · Harris County, TX

IH 610 Nb/sh 225wb over IH 610 & SH 225

Carries IH 610 Nb/sh 225wb over IH 610 & SH 225, IH 610 @ SH 225 (intrchg).

Overall conditionFair

Set by its lowest-rated component: Substructure at 5 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructure6/9 · Satisfactory
Substructuresets the rating5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT2,139 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 5/9 · sets the rating

2,139 ft end to end, longest span 122 ft: about 5.9 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.

Built197452 years old
Length2139.1 ft652 m
Daily traffic12,520counted 2011
Last inspectedAugust 2024every 24 months

Location

StateTexas
CountyHarris
LocationIH 610 @ SH 225 (intrchg)
CarriesIH 610 Nb/sh 225wb
CrossesIH 610 & SH 225
Coordinates29.70962, -95.26795

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length2139.1 ft (652 m)
Max Span122.0 ft (37.2 m)
Deck Width25.9 ft (7.9 m)
Deck Area5150.8 sq m
Main Spans8
Year Built1974

Traffic

Avg Daily Traffic12,520 (2011)
Truck Traffic8%
Lanes On Bridge1
Lanes Under Bridge14

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour CriticalNot applicable
Structure Number121020027115346

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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