Structure 121020351006132 · Harris County, TX

SH 99 EB over E Hardy RD Up Railroad

Carries SH 99 EB over E Hardy RD Up Railroad, 0.9 Mi E Of IH 45.

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
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,577 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 7/9 · sets the rating

1,577 ft end to end, longest span 130 ft: about 4.4 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.

Built201610 years old
Length1577.1 ft480.7 m
Daily traffic4,000counted 2016
Last inspectedNovember 2022every 48 months

Location

StateTexas
CountyHarris
Location0.9 Mi E Of IH 45
CarriesSH 99 EB
CrossesE Hardy RD Up Railroad
Coordinates30.09257, -95.41963

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length1577.1 ft (480.7 m)
Max Span129.9 ft (39.6 m)
Deck Width47.9 ft (14.6 m)
Deck Area7018.2 sq m
Main Spans13
Year Built2016

Traffic

Avg Daily Traffic4,000 (2016)
Truck Traffic2%
Lanes On Bridge2
Lanes Under Bridge6

Inspection & Ownership

Last InspectionNovember 2022
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number121020351006132

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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