US Bridges

FM 1764 over Amburn RD

Fair

Galveston County, Texas · 1.70 MI SE of FM 2004 · Structure no. 120850160701014

Built
1989
36 years old
Condition
Fair
inspected September 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
340 ft
3 main spans
Daily traffic
33,778
2016 count
Owner
State
State Highway Agency

About this bridge

FM 1764 over Amburn RD is a prestressed concrete stringer/multi-beam or girder carrying FM 1764 over Amburn RD in Galveston County, Texas. It was built in 1989, so it is 36 years old, younger 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 33,778 vehicles a day, roughly 4% of them trucks, projected to reach 39,520 by 2033. The structure is 340 ft (103.6 m) long and 94 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesFM 1764
CrossesAmburn RD
Location1.70 MI SE of FM 2004
RouteState Highway 1764
CountyGalveston County
StateTexas
Coordinates29.39785, -95.00334
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length340 ft (103.6 m)
Longest span120 ft (36.6 m)
Deck width94 ft (28.7 m)
Roadway width89 ft (27.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic33,778 (2016)
Projected traffic39,520 by 2033
Trucks4%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was FM 1764 over Amburn RD built?

It was built in 1989, making it 36 years old in 2025.

What condition is FM 1764 over Amburn RD 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 September 2022.

How much traffic does FM 1764 over Amburn RD carry?

About 33,778 vehicles per day (2016 count), of which roughly 4% are trucks.

How long is FM 1764 over Amburn RD?

The structure is 340 ft (103.6 m) long with a longest span of 120 ft (36.6 m) and a deck 94 ft wide.

Who owns FM 1764 over Amburn RD?

It is owned by the State Highway Agency.