US Bridges

Nfa 5566 (sa 3911) over M. Fk. Forked Deer River

FairPosted for load

Henderson County, Tennessee · 1.2 MI N of SR20 · Structure no. 39S80390001

Built
1973
52 years old
Condition
Fair
inspected June 2024
Type
Channel Beam
Concrete
Length
29 ft
1 main span
Daily traffic
560
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 5566 (sa 3911) over M. Fk. Forked Deer River is a concrete channel beam carrying Nfa 5566 (sa 3911) over M. Fk. Forked Deer River in Henderson County, Tennessee. It was built in 1973, so it is 52 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. Its operating status is: posted for load restriction.

It carries about 560 vehicles a day, roughly 3% of them trucks, projected to reach 896 by 2042. The structure is 29 ft (8.7 m) long and 22 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesNfa 5566 (sa 3911)
CrossesM. Fk. Forked Deer River
Location1.2 MI N of SR20
RouteCounty Highway 5566
CountyHenderson County
StateTennessee
Coordinates35.70517, -88.51556
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
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 rating40.3 US tons
Inventory rating31.1 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadH 15
Structure length29 ft (8.7 m)
Longest span29 ft (8.7 m)
Deck width22 ft (6.6 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic560 (2021)
Projected traffic896 by 2042
Trucks3%
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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$131,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 5566 (sa 3911) over M. Fk. Forked Deer River built?

It was built in 1973, making it 52 years old in 2025.

What condition is Nfa 5566 (sa 3911) over M. Fk. Forked Deer River 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 June 2024.

How much traffic does Nfa 5566 (sa 3911) over M. Fk. Forked Deer River carry?

About 560 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 5566 (sa 3911) over M. Fk. Forked Deer River?

The structure is 29 ft (8.7 m) long with a longest span of 29 ft (8.7 m) and a deck 22 ft wide.

Who owns Nfa 5566 (sa 3911) over M. Fk. Forked Deer River?

It is owned by the County Highway Agency.