US Bridges

Nfa 5518 over Branch

Fair

Wilson County, Tennessee · 0.4 MI East of SR109 · Structure no. 950A4480003

Built
1940
85 years old, rebuilt 1975
Condition
Fair
inspected June 2024
Type
Culvert
Concrete Continuous
Length
23 ft
2 main spans
Daily traffic
2,672
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 5518 over Branch is a concrete continuous culvert carrying Nfa 5518 over Branch in Wilson County, Tennessee. It was built in 1940 and reconstructed in 1975, so it is 85 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 2,672 vehicles a day, roughly 3% of them trucks, projected to reach 4,304 by 2040. The structure is 23 ft (7 m) long and 28 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesNfa 5518
CrossesBranch
Location0.4 MI East of SR109
RouteCounty Highway 5518
Coordinates36.19915, -86.40099
Functional classUrban 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 inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45.7 US tons
Inventory rating28.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 20
Structure length23 ft (7 m)
Longest span10 ft (3 m)
Deck width28 ft (8.5 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,672 (2021)
Projected traffic4,304 by 2040
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$232,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 5518 over Branch built?

It was built in 1940, making it 85 years old in 2025. It was reconstructed in 1975.

What condition is Nfa 5518 over 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 June 2024.

How much traffic does Nfa 5518 over Branch carry?

About 2,672 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 5518 over Branch?

The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m) and a deck 28 ft wide.

Who owns Nfa 5518 over Branch?

It is owned by the County Highway Agency.