US Bridges

FM 787 over Trinity River

FairClosed to traffic

Liberty County, Texas · 3.2 MI NE of FM 223 · Structure no. 201460081301028

Built
1976
49 years old, rebuilt 2003
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
664 ft
4 main spans
Daily traffic
3,210
2022 count
Owner
State
State Highway Agency

About this bridge

FM 787 over Trinity River is a prestressed concrete stringer/multi-beam or girder carrying FM 787 over Trinity River in Liberty County, Texas. It was built in 1976 and reconstructed in 2003, so it is 49 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. Its operating status is: closed to all traffic.

It carries about 3,210 vehicles a day, roughly 27% of them trucks, projected to reach 4,494 by 2042. The structure is 664 ft (202.4 m) long and 44 ft wide. If it were closed, the detour would be 16.8 mi (27 km).

Location

Open in Google Maps
CarriesFM 787
CrossesTrinity River
Location3.2 MI NE of FM 223
RouteState Highway 787
CountyLiberty County
StateTexas
Coordinates30.42494, -94.85053
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
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 inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusClosed to all traffic
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation0: Immediate repair necessary to put back in service
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating0 US tons
Inventory rating0 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4 (+3 approach)
Design loadHS 20
Structure length664 ft (202.4 m)
Longest span130 ft (39.6 m)
Deck width44 ft (13.5 m)
Roadway width43 ft (13 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,210 (2022)
Projected traffic4,494 by 2042
Trucks27%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.8 mi (27 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$58,000
NavigationNo navigation control on waterway

Frequently asked questions

When was FM 787 over Trinity River built?

It was built in 1976, making it 49 years old in 2025. It was reconstructed in 2003.

What condition is FM 787 over Trinity 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 March 2024.

How much traffic does FM 787 over Trinity River carry?

About 3,210 vehicles per day (2022 count), of which roughly 27% are trucks.

How long is FM 787 over Trinity River?

The structure is 664 ft (202.4 m) long with a longest span of 130 ft (39.6 m) and a deck 44 ft wide.

Who owns FM 787 over Trinity River?

It is owned by the State Highway Agency.