US Bridges

FM 489 over Linn Creek

Fair

Freestone County, Texas · 2.2 MI W of IH 45 · Structure no. 170820132503002

Built
1955
70 years old
Condition
Fair
inspected October 2024
Type
Slab
Concrete
Length
50 ft
2 main spans
Daily traffic
699
2020 count
Owner
State
State Highway Agency

About this bridge

FM 489 over Linn Creek is a concrete slab carrying FM 489 over Linn Creek in Freestone County, Texas. It was built in 1955, so it is 70 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 699 vehicles a day, roughly 10% of them trucks, projected to reach 1,490 by 2033. The structure is 50 ft (15.2 m) long and 25 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

Location

Open in Google Maps
CarriesFM 489
CrossesLinn Creek
Location2.2 MI W of IH 45
RouteState Highway 489
CountyFreestone County
StateTexas
Coordinates31.5724, -96.18185
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.
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 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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56 US tons
Inventory rating29 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadOther
Structure length50 ft (15.2 m)
Longest span25 ft (7.6 m)
Deck width25 ft (7.7 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic699 (2020)
Projected traffic1,490 by 2033
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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$3,000
NavigationNo navigation control on waterway

Frequently asked questions

When was FM 489 over Linn Creek built?

It was built in 1955, making it 70 years old in 2025.

What condition is FM 489 over Linn 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 489 over Linn Creek carry?

About 699 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is FM 489 over Linn Creek?

The structure is 50 ft (15.2 m) long with a longest span of 25 ft (7.6 m) and a deck 25 ft wide.

Who owns FM 489 over Linn Creek?

It is owned by the State Highway Agency.