US Bridges

Nfa 2620 (sa 3405) over Four Mile Creek

Fair

Hancock County, Tennessee · In NW Corner of County · Structure no. 34026200001

Built
1970
55 years old
Condition
Fair
inspected July 2023
Type
Culvert
Concrete Continuous
Length
27 ft
3 main spans
Daily traffic
210
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 2620 (sa 3405) over Four Mile Creek is a concrete continuous culvert carrying Nfa 2620 (sa 3405) over Four Mile Creek in Hancock County, Tennessee. It was built in 1970, so it is 55 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 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 210 vehicles a day, roughly 3% of them trucks, projected to reach 336 by 2039. The structure is 27 ft (8.1 m) long. If it were closed, the detour would be 6.2 mi (10 km).

CarriesNfa 2620 (sa 3405)
CrossesFour Mile Creek
LocationIn NW Corner of County
RouteCounty Highway 2620
Coordinates36.5794, -83.36742
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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length27 ft (8.1 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic210 (2021)
Projected traffic336 by 2039
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 2620 (sa 3405) over Four Mile Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is Nfa 2620 (sa 3405) over Four Mile 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 July 2023.

How much traffic does Nfa 2620 (sa 3405) over Four Mile Creek carry?

About 210 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 2620 (sa 3405) over Four Mile Creek?

The structure is 27 ft (8.1 m) long with a longest span of 8 ft (2.4 m).

Who owns Nfa 2620 (sa 3405) over Four Mile Creek?

It is owned by the County Highway Agency.