Structure 121020050801317 · Harris County, TX

IH 10 EB over San Jacinto River

Carries IH 10 EB over San Jacinto River, IH 10 @ San Jacinto River.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructure7/9 · Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT2,611 FT OVERALL500 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 7/9

2,611 ft end to end, longest span 270 ft: about 7.3 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.

Built199531 years old
Length2610.9 ft795.8 m
Daily traffic65,355counted 2023
Last inspectedOctober 2024every 24 months

Location

StateTexas
CountyHarris
LocationIH 10 @ San Jacinto River
CarriesIH 10 EB
CrossesSan Jacinto River
Coordinates29.79348, -95.06350

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length2610.9 ft (795.8 m)
Max Span270.0 ft (82.3 m)
Deck Width58.7 ft (17.9 m)
Deck Area14244.8 sq m
Main Spans3
Year Built1995

Traffic

Avg Daily Traffic65,355 (2023)
Truck Traffic11%
Lanes On Bridge3

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 Number121020050801317

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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