US Bridges

Nfa A440 over Ditch

Fair

Obion County, Tennessee · 4.7 MI NE JCT SR5&SR216 · Structure no. 660A4400001

Built
1990
35 years old
Condition
Fair
inspected March 2023
Type
Culvert
Concrete
Length
24 ft
1 main span
Daily traffic
740
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A440 over Ditch is a concrete culvert carrying Nfa A440 over Ditch in Obion County, Tennessee. It was built in 1990, so it is 35 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 740 vehicles a day, roughly 6% of them trucks, projected to reach 1,184 by 2041. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesNfa A440
CrossesDitch
Location4.7 MI NE JCT SR5&SR216
RouteCounty Highway 440
CountyObion County
StateTennessee
Coordinates36.39892, -88.99411
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating98.2 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span18 ft (5.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic740 (2020)
Projected traffic1,184 by 2041
Trucks6%
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

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 A440 over Ditch built?

It was built in 1990, making it 35 years old in 2025.

What condition is Nfa A440 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 March 2023.

How much traffic does Nfa A440 over Ditch carry?

About 740 vehicles per day (2020 count), of which roughly 6% are trucks.

How long is Nfa A440 over Ditch?

The structure is 24 ft (7.3 m) long with a longest span of 18 ft (5.5 m).

Who owns Nfa A440 over Ditch?

It is owned by the County Highway Agency.