US Bridges

FM 1764 over Drainage Ditch

Fair

Galveston County, Texas · 1.95 MI E of SH 146 · Structure no. 120850160701003

Built
1959
66 years old
Condition
Fair
inspected August 2024
Type
Culvert
Concrete
Length
29 ft
3 main spans
Daily traffic
34,771
2022 count
Owner
State
State Highway Agency

About this bridge

FM 1764 over Drainage Ditch is a concrete culvert carrying FM 1764 over Drainage Ditch in Galveston County, Texas. It was built in 1959, so it is 66 years old, older than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 34,771 vehicles a day, roughly 3% of them trucks, projected to reach 34,679 by 2042. The structure is 29 ft (8.8 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesFM 1764
CrossesDrainage Ditch
Location1.95 MI E of SH 146
RouteState Highway 1764
CountyGalveston County
StateTexas
Coordinates29.39329, -94.91912
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadUnknown
Structure length29 ft (8.8 m)
Longest span9 ft (2.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic34,771 (2022)
Projected traffic34,679 by 2042
Trucks3%
Lanes on structure7
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$3,000
NavigationNo navigation control on waterway

Frequently asked questions

When was FM 1764 over Drainage Ditch built?

It was built in 1959, making it 66 years old in 2025.

What condition is FM 1764 over Drainage Ditch in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2024.

How much traffic does FM 1764 over Drainage Ditch carry?

About 34,771 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is FM 1764 over Drainage Ditch?

The structure is 29 ft (8.8 m) long with a longest span of 9 ft (2.7 m).

Who owns FM 1764 over Drainage Ditch?

It is owned by the State Highway Agency.