Structure 121020059801478 · Harris County, TX

Holly Hall Drive over SH 288

Carries Holly Hall Drive over SH 288, 0.5 Miles North Of IH 610.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 8 of 9.

How ratings work
Decksets the rating8/9 · Very Good
Superstructuresets the rating8/9 · Very Good
Substructuresets the rating8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT375 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 8/9

375 ft end to end: about 5 semi-trucks nose to tail. 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.

Built20206 years old
Length375.0 ft114.3 m
Daily traffic171,902counted 2019
Last inspectedDecember 2022every 48 months

Location

StateTexas
CountyHarris
Location0.5 Miles North Of IH 610
CarriesHolly Hall Drive
CrossesSH 288
Coordinates29.68701, -95.37911

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length375.0 ft (114.3 m)
Max Span143.0 ft (43.6 m)
Deck Width700.1 ft (213.4 m)
Deck Area24391.6 sq m
Main Spans1
Year Built2020

Traffic

Avg Daily Traffic171,902 (2019)
Truck Traffic7%
Lanes On Bridge4
Lanes Under Bridge16

Inspection & Ownership

Last InspectionDecember 2022
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number121020059801478

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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