US Bridges

Nfa 2000 over Duffy Branch

Fair

Gibson County, Tennessee · 3.6 MI NE JCT SR76&SR366 · Structure no. 270A7470001

Built
1985
40 years old
Condition
Fair
inspected July 2023
Type
Culvert
Concrete Continuous
Length
40 ft
3 main spans
Daily traffic
900
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 2000 over Duffy Branch is a concrete continuous culvert carrying Nfa 2000 over Duffy Branch in Gibson County, Tennessee. It was built in 1985, so it is 40 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 5 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 900 vehicles a day, roughly 3% of them trucks, projected to reach 1,440 by 2042. The structure is 40 ft (12.2 m) long and 42 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesNfa 2000
CrossesDuffy Branch
Location3.6 MI NE JCT SR76&SR366
RouteCounty Highway 2000
CountyGibson County
StateTennessee
Coordinates35.86005, -88.89533
Functional classRural Minor 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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length40 ft (12.2 m)
Longest span12 ft (3.8 m)
Deck width42 ft (12.8 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic900 (2021)
Projected traffic1,440 by 2042
Trucks3%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 2000 over Duffy Branch built?

It was built in 1985, making it 40 years old in 2025.

What condition is Nfa 2000 over Duffy Branch 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 July 2023.

How much traffic does Nfa 2000 over Duffy Branch carry?

About 900 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 2000 over Duffy Branch?

The structure is 40 ft (12.2 m) long with a longest span of 12 ft (3.8 m) and a deck 42 ft wide.

Who owns Nfa 2000 over Duffy Branch?

It is owned by the County Highway Agency.