US Bridges

Nfa B627 over Kettle Branch

Fair

Maury County, Tennessee · 4.5 M. W. Williamsport. · Structure no. 600A4460001

Built
1940
85 years old
Condition
Fair
inspected June 2024
Type
Arch - Deck
Concrete
Length
31 ft
1 main span
Daily traffic
120
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa B627 over Kettle Branch is a concrete arch - deck carrying Nfa B627 over Kettle Branch in Maury County, Tennessee. It was built in 1940, 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 120 vehicles a day, roughly 2% of them trucks, projected to reach 192 by 2040. The structure is 31 ft (9.4 m) long and 13 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesNfa B627
CrossesKettle Branch
Location4.5 M. W. Williamsport.
RouteCounty Highway 627
CountyMaury County
StateTennessee
Coordinates35.67795, -87.29788
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.7 US tons
Inventory rating26.8 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length31 ft (9.4 m)
Longest span30 ft (9.1 m)
Deck width13 ft (3.9 m)
Roadway width11 ft (3.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic120 (2020)
Projected traffic192 by 2040
Trucks2%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$211,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa B627 over Kettle Branch built?

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

What condition is Nfa B627 over Kettle 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 B627 over Kettle Branch carry?

About 120 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa B627 over Kettle Branch?

The structure is 31 ft (9.4 m) long with a longest span of 30 ft (9.1 m) and a deck 13 ft wide.

Who owns Nfa B627 over Kettle Branch?

It is owned by the County Highway Agency.