Structure 120850050001206 · Galveston County, TX

IH 45 NB over Spur 342

Carries IH 45 NB over Spur 342, 1.50 Mi E Of FM 188.

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
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT330 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 7/9

330 ft end to end, longest span 61 ft: 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.

Built197650 years old
Length330.1 ft100.6 m
Daily traffic14,490counted 2013
Last inspectedAugust 2022every 48 months

Location

StateTexas
CountyGalveston
Location1.50 Mi E Of FM 188
CarriesIH 45 NB
CrossesSpur 342
Coordinates29.28850, -94.83794

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length330.1 ft (100.6 m)
Max Span61.0 ft (18.6 m)
Deck Width59.4 ft (18.1 m)
Deck Area1820.9 sq m
Main Spans6
Year Built1976

Traffic

Avg Daily Traffic14,490 (2013)
Truck Traffic4%
Lanes On Bridge3
Lanes Under Bridge8

Inspection & Ownership

Last InspectionAugust 2022
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour CriticalNot applicable
Structure Number120850050001206

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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