US Bridges

FAS 99 over Allens Creek

FairPosted for load

Lewis County, Tennessee · .4 M S of North Riverside · Structure no. 51S61960007

Built
1968
57 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
117 ft
3 main spans
Daily traffic
154
2021 count
Owner
State
State Highway Agency

About this bridge

FAS 99 over Allens Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying FAS 99 over Allens Creek in Lewis County, Tennessee. It was built in 1968, so it is 57 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 154 vehicles a day, roughly 5% of them trucks, projected to reach 246 by 2042. The structure is 117 ft (35.7 m) long and 29 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesFAS 99
CrossesAllens Creek
Location.4 M S of North Riverside
RouteState Highway 99
Coordinates35.44215, -87.59962
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusPosted for load 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41.1 US tons
Inventory rating28.5 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length117 ft (35.7 m)
Longest span38 ft (11.6 m)
Deck width29 ft (8.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic154 (2021)
Projected traffic246 by 2042
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FAS 99 over Allens Creek built?

It was built in 1968, making it 57 years old in 2025.

What condition is FAS 99 over Allens 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 2023.

How much traffic does FAS 99 over Allens Creek carry?

About 154 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is FAS 99 over Allens Creek?

The structure is 117 ft (35.7 m) long with a longest span of 38 ft (11.6 m) and a deck 29 ft wide.

Who owns FAS 99 over Allens Creek?

It is owned by the State Highway Agency.