US Bridges

FM 1764 over Drainage Ditch 8A2

Good

Galveston County, Texas · 0.7 MI W of IH 45 · Structure no. 120850160702019

Built
1997
28 years old
Condition
Good
inspected November 2024
Type
Culvert
Concrete
Length
37 ft
3 main spans
Daily traffic
18,390
2020 count
Owner
State
State Highway Agency

About this bridge

FM 1764 over Drainage Ditch 8A2 is a concrete culvert carrying FM 1764 over Drainage Ditch 8A2 in Galveston County, Texas. It was built in 1997, so it is 28 years old, younger than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 18,390 vehicles a day, roughly 4% of them trucks, projected to reach 21,890 by 2033. The structure is 37 ft (11.3 m) long and 124 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesFM 1764
CrossesDrainage Ditch 8A2
Location0.7 MI W of IH 45
RouteState Highway 1764
CountyGalveston County
StateTexas
Coordinates29.39601, -95.04154
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionNovember 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
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.6 US tons
Inventory rating26.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length37 ft (11.3 m)
Longest span9 ft (2.7 m)
Deck width124 ft (37.8 m)
Roadway width122 ft (37.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,390 (2020)
Projected traffic21,890 by 2033
Trucks4%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM 1764 over Drainage Ditch 8A2 built?

It was built in 1997, making it 28 years old in 2025.

What condition is FM 1764 over Drainage Ditch 8A2 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2024.

How much traffic does FM 1764 over Drainage Ditch 8A2 carry?

About 18,390 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is FM 1764 over Drainage Ditch 8A2?

The structure is 37 ft (11.3 m) long with a longest span of 9 ft (2.7 m) and a deck 124 ft wide.

Who owns FM 1764 over Drainage Ditch 8A2?

It is owned by the State Highway Agency.