US Bridges

Nfa A121 over Old Bed Forked Deer

Fair

Lauderdale County, Tennessee · 2.2 Mi. E. of SR88 · Structure no. 490A1210001

Built
1988
37 years old
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
319 ft
6 main spans
Daily traffic
280
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A121 over Old Bed Forked Deer is a prestressed concrete continuous stringer/multi-beam or girder carrying Nfa A121 over Old Bed Forked Deer in Lauderdale County, Tennessee. It was built in 1988, so it is 37 years old, younger 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 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 280 vehicles a day, roughly 2% of them trucks, projected to reach 448 by 2041. The structure is 319 ft (97.2 m) long and 26 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesNfa A121
CrossesOld Bed Forked Deer
Location2.2 Mi. E. of SR88
RouteCounty Highway 121
Coordinates35.88108, -89.59734
Functional classRural Local

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2023
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 rating77.5 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans6
Design loadHS 20
Structure length319 ft (97.2 m)
Longest span53 ft (16.3 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic280 (2020)
Projected traffic448 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Nfa A121 over Old Bed Forked Deer built?

It was built in 1988, making it 37 years old in 2025.

What condition is Nfa A121 over Old Bed Forked Deer 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 December 2023.

How much traffic does Nfa A121 over Old Bed Forked Deer carry?

About 280 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A121 over Old Bed Forked Deer?

The structure is 319 ft (97.2 m) long with a longest span of 53 ft (16.3 m) and a deck 26 ft wide.

Who owns Nfa A121 over Old Bed Forked Deer?

It is owned by the County Highway Agency.