US Bridges

FM 1489 over Brazos River

Fair

Fort Bend County, Texas · 2.50 MI N of SH 36 · Structure no. 120800141803005

Built
1967
58 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
770 ft
4 main spans
Daily traffic
2,903
2019 count
Owner
State
State Highway Agency

About this bridge

FM 1489 over Brazos River is a steel continuous stringer/multi-beam or girder carrying FM 1489 over Brazos River in Fort Bend County, Texas. It was built in 1967, so it is 58 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 5 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 2,903 vehicles a day, roughly 17% of them trucks, projected to reach 3,484 by 2039. The structure is 770 ft (234.7 m) long and 35 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesFM 1489
CrossesBrazos River
Location2.50 MI N of SH 36
RouteState Highway 1489
CountyFort Bend County
StateTexas
Coordinates29.63955, -95.97587
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour evaluation has not been made
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating62.9 US tons
Inventory rating18 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4 (+3 approach)
Design loadH 20
Structure length770 ft (234.7 m)
Longest span150 ft (45.7 m)
Deck width35 ft (10.8 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,903 (2019)
Projected traffic3,484 by 2039
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM 1489 over Brazos River built?

It was built in 1967, making it 58 years old in 2025.

What condition is FM 1489 over Brazos River 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 November 2024.

How much traffic does FM 1489 over Brazos River carry?

About 2,903 vehicles per day (2019 count), of which roughly 17% are trucks.

How long is FM 1489 over Brazos River?

The structure is 770 ft (234.7 m) long with a longest span of 150 ft (45.7 m) and a deck 35 ft wide.

Who owns FM 1489 over Brazos River?

It is owned by the State Highway Agency.