Structure 120850160701004 · Galveston County, TX

FM 1764 over Drainage Ditch

Carries FM 1764 over Drainage Ditch, 0.40 Mi E Of SH 146.

Overall conditionFair

Set by its lowest-rated component: Culvert at 5 of 9.

How ratings work
Culvertsets the rating5/9 · Fair
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT49 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 5/9

A culvert 49 ft across with 4 openings. Lengths and the car 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, so those are drawn as typical for a culvert.

Built195967 years old
Length48.9 ft14.9 m
Daily traffic26,174counted 2023
Last inspectedAugust 2024every 24 months

Location

StateTexas
CountyGalveston
Location0.40 Mi E Of SH 146
CarriesFM 1764
CrossesDrainage Ditch
Coordinates29.39533, -94.94434

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length48.9 ft (14.9 m)
Max Span9.8 ft (3 m)
Deck Width97.4 ft (29.7 m)
Deck Area442.5 sq m
Main Spans4
Year Built1959

Traffic

Avg Daily Traffic26,174 (2023)
Truck Traffic4%
Lanes On Bridge7

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour Critical4 — Foundations need monitoring
Structure Number120850160701004

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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