US Bridges

FM 1771 over Trib Little Brazos River

Good

Falls County, Texas · 1.04 MI N of FM 413 · Structure no. 090740165801001

Built
1953
72 years old
Condition
Good
inspected December 2022
Type
Culvert
Concrete
Length
23 ft
3 main spans
Daily traffic
285
2020 count
Owner
State
State Highway Agency

About this bridge

FM 1771 over Trib Little Brazos River is a concrete culvert carrying FM 1771 over Trib Little Brazos River in Falls County, Texas. It was built in 1953, so it is 72 years old, older 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 285 vehicles a day, roughly 19% of them trucks, projected to reach 260 by 2033. The structure is 23 ft (7 m) long and 27 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesFM 1771
CrossesTrib Little Brazos River
Location1.04 MI N of FM 413
RouteState Highway 1771
CountyFalls County
StateTexas
Coordinates31.26747, -96.73996
Functional classRural Minor Collector

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 inspectionDecember 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than 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 loadOther
Structure length23 ft (7 m)
Longest span5 ft (1.5 m)
Deck width27 ft (8.3 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic285 (2020)
Projected traffic260 by 2033
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$400,000
NavigationNo navigation control on waterway

Frequently asked questions

When was FM 1771 over Trib Little Brazos River built?

It was built in 1953, making it 72 years old in 2025.

What condition is FM 1771 over Trib Little Brazos River 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 December 2022.

How much traffic does FM 1771 over Trib Little Brazos River carry?

About 285 vehicles per day (2020 count), of which roughly 19% are trucks.

How long is FM 1771 over Trib Little Brazos River?

The structure is 23 ft (7 m) long with a longest span of 5 ft (1.5 m) and a deck 27 ft wide.

Who owns FM 1771 over Trib Little Brazos River?

It is owned by the State Highway Agency.