US Bridges

FAS 256 over Sulphur Fork Creek

FairPosted for load

Robertson County, Tennessee · 3 Mi.N.Of E0004 · Structure no. 74S63430001

Built
1961
64 years old
Condition
Fair
inspected May 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
270 ft
6 main spans
Daily traffic
1,495
2021 count
Owner
State
State Highway Agency

About this bridge

FAS 256 over Sulphur Fork Creek is a prestressed concrete continuous box beam or girders - multiple carrying FAS 256 over Sulphur Fork Creek in Robertson County, Tennessee. It was built in 1961, so it is 64 years old, older than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 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: posted for load restriction.

It carries about 1,495 vehicles a day, roughly 5% of them trucks, projected to reach 1,968 by 2040. The structure is 270 ft (82.3 m) long and 28 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesFAS 256
CrossesSulphur Fork Creek
Location3 Mi.N.Of E0004
RouteState Highway SR256
Coordinates36.51534, -87.05672
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating45.7 US tons
Inventory rating26.8 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckOther
Main spans6
Design loadH 15
Structure length270 ft (82.3 m)
Longest span45 ft (13.7 m)
Deck width28 ft (8.6 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,495 (2021)
Projected traffic1,968 by 2040
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$3 million (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FAS 256 over Sulphur Fork Creek built?

It was built in 1961, making it 64 years old in 2025.

What condition is FAS 256 over Sulphur Fork 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 May 2024.

How much traffic does FAS 256 over Sulphur Fork Creek carry?

About 1,495 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is FAS 256 over Sulphur Fork Creek?

The structure is 270 ft (82.3 m) long with a longest span of 45 ft (13.7 m) and a deck 28 ft wide.

Who owns FAS 256 over Sulphur Fork Creek?

It is owned by the State Highway Agency.