Structure 120850050004477 · Galveston County, TX

IH 45 Mls over Hughes RD

Carries IH 45 Mls over Hughes RD, 0.7 Mi SE Of FM 517.

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 FT450 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 8/9

450 ft end to end, longest span 97 ft: about 6 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.

Built20224 years old
Length450.1 ft137.2 m
Daily traffic10,900counted 2016
Last inspectedDecember 2022every 48 months

Location

StateTexas
CountyGalveston
Location0.7 Mi SE Of FM 517
CarriesIH 45 Mls
CrossesHughes RD
Coordinates29.44106, -95.07049

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length450.1 ft (137.2 m)
Max Span97.1 ft (29.6 m)
Deck Width82.3 ft (25.1 m)
Deck Area3443.7 sq m
Main Spans6
Year Built2022

Traffic

Avg Daily Traffic10,900 (2016)
Truck Traffic1%
Lanes On Bridge4
Lanes Under Bridge14

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 Number120850050004477

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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