US Bridges

FM 486 over Turkey Creek Relief No 1

Good

Milam County, Texas · 2.7 MI S of FM 908 · Structure no. 171660059005060

Built
1987
38 years old
Condition
Good
inspected September 2024
Type
Culvert
Concrete
Length
54 ft
5 main spans
Daily traffic
2,284
2023 count
Owner
State
State Highway Agency

About this bridge

FM 486 over Turkey Creek Relief No 1 is a concrete culvert carrying FM 486 over Turkey Creek Relief No 1 in Milam County, Texas. It was built in 1987, so it is 38 years old, younger 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 2,284 vehicles a day, roughly 11% of them trucks, projected to reach 3,517 by 2042. The structure is 54 ft (16.5 m) long and 42 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

Location

Open in Google Maps
CarriesFM 486
CrossesTurkey Creek Relief No 1
Location2.7 MI S of FM 908
RouteState Highway 486
CountyMilam County
StateTexas
Coordinates30.63428, -97.19617
Functional classRural Major 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 protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2024
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length54 ft (16.5 m)
Longest span10 ft (3 m)
Deck width42 ft (12.8 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,284 (2023)
Projected traffic3,517 by 2042
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed14.9 mi (24 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM 486 over Turkey Creek Relief No 1 built?

It was built in 1987, making it 38 years old in 2025.

What condition is FM 486 over Turkey Creek Relief No 1 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 September 2024.

How much traffic does FM 486 over Turkey Creek Relief No 1 carry?

About 2,284 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is FM 486 over Turkey Creek Relief No 1?

The structure is 54 ft (16.5 m) long with a longest span of 10 ft (3 m) and a deck 42 ft wide.

Who owns FM 486 over Turkey Creek Relief No 1?

It is owned by the State Highway Agency.