US Bridges

FM 671 over Pin Oak Creek

Fair

Caldwell County, Texas · 2.8 MI SW US 183 · Structure no. 140280106001009

Built
1962
63 years old
Condition
Fair
inspected October 2024
Type
Slab
Concrete
Length
100 ft
4 main spans
Daily traffic
729
2023 count
Owner
State
State Highway Agency

About this bridge

FM 671 over Pin Oak Creek is a concrete slab carrying FM 671 over Pin Oak Creek in Caldwell County, Texas. It was built in 1962, so it is 63 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.

It carries about 729 vehicles a day, roughly 6% of them trucks, projected to reach 1,021 by 2042. The structure is 100 ft (30.5 m) long and 32 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesFM 671
CrossesPin Oak Creek
Location2.8 MI SW US 183
RouteState Highway 671
StateTexas
Coordinates29.7725, -97.67941
Functional classRural Minor 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating61 US tons
Inventory rating37 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length100 ft (30.5 m)
Longest span25 ft (7.6 m)
Deck width32 ft (9.9 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic729 (2023)
Projected traffic1,021 by 2042
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 671 over Pin Oak Creek built?

It was built in 1962, making it 63 years old in 2025.

What condition is FM 671 over Pin Oak Creek 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 October 2024.

How much traffic does FM 671 over Pin Oak Creek carry?

About 729 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is FM 671 over Pin Oak Creek?

The structure is 100 ft (30.5 m) long with a longest span of 25 ft (7.6 m) and a deck 32 ft wide.

Who owns FM 671 over Pin Oak Creek?

It is owned by the State Highway Agency.