Structure 120850038906065 · Galveston County, TX

SH 146 NB over FM 1764

Carries SH 146 NB over FM 1764, 1.10 Mi N Of FM 1765.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT386 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

386 ft end to end, longest span 73 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.

Built197155 years old
Length386.2 ft117.7 m
Daily traffic6,595counted 2019
Last inspectedAugust 2022every 48 months

Location

StateTexas
CountyGalveston
Location1.10 Mi N Of FM 1765
CarriesSH 146 NB
CrossesFM 1764
Coordinates29.39535, -94.95102

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length386.2 ft (117.7 m)
Max Span73.2 ft (22.3 m)
Deck Width49.5 ft (15.1 m)
Deck Area1777.3 sq m
Main Spans6
Year Built1971

Traffic

Avg Daily Traffic6,595 (2019)
Truck Traffic8%
Lanes On Bridge2
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 Number120850038906065

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.

Nearby Bridges