US Bridges

Nfa A651 over Ditch

FairPosted for load

Dyer County, Tennessee · 0.5 MI E of SR20 · Structure no. 230A6510001

Built
1979
46 years old
Condition
Fair
inspected November 2023
Type
Channel Beam
Concrete
Length
28 ft
1 main span
Daily traffic
70
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A651 over Ditch is a concrete channel beam carrying Nfa A651 over Ditch in Dyer County, Tennessee. It was built in 1979, so it is 46 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. Its operating status is: posted for load restriction.

It carries about 70 vehicles a day, roughly 4% of them trucks, projected to reach 112 by 2042. The structure is 28 ft (8.6 m) long and 18 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesNfa A651
CrossesDitch
Location0.5 MI E of SR20
RouteCounty Highway 651
CountyDyer County
StateTennessee
Coordinates36.04593, -89.49466
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 protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.7 US tons
Inventory rating21.8 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadUnknown
Structure length28 ft (8.6 m)
Longest span28 ft (8.6 m)
Deck width18 ft (5.5 m)
Roadway width17 ft (5.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic70 (2020)
Projected traffic112 by 2042
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$112,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A651 over Ditch built?

It was built in 1979, making it 46 years old in 2025.

What condition is Nfa A651 over Ditch 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 November 2023.

How much traffic does Nfa A651 over Ditch carry?

About 70 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is Nfa A651 over Ditch?

The structure is 28 ft (8.6 m) long with a longest span of 28 ft (8.6 m) and a deck 18 ft wide.

Who owns Nfa A651 over Ditch?

It is owned by the County Highway Agency.