US Bridges

Nfa A424 over Curry Branch

Fair

Maury County, Tennessee · 6 M. Nw. Mt. Pleasant. · Structure no. 600A4240001

Built
1939
86 years old
Condition
Fair
inspected June 2024
Type
Arch - Deck
Concrete
Length
41 ft
1 main span
Daily traffic
220
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A424 over Curry Branch is a concrete arch - deck carrying Nfa A424 over Curry Branch in Maury County, Tennessee. It was built in 1939, so it is 86 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 220 vehicles a day, roughly 2% of them trucks, projected to reach 352 by 2040. The structure is 41 ft (12.5 m) long and 17 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesNfa A424
CrossesCurry Branch
Location6 M. Nw. Mt. Pleasant.
RouteCounty Highway 424
CountyMaury County
StateTennessee
Coordinates35.61213, -87.26843
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 protection7 GoodSome minor problems.
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum 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 length41 ft (12.5 m)
Longest span40 ft (12.2 m)
Deck width17 ft (5.1 m)
Roadway width16 ft (4.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic220 (2020)
Projected traffic352 by 2040
Trucks2%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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$227,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A424 over Curry Branch built?

It was built in 1939, making it 86 years old in 2025.

What condition is Nfa A424 over Curry 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 A424 over Curry Branch carry?

About 220 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A424 over Curry Branch?

The structure is 41 ft (12.5 m) long with a longest span of 40 ft (12.2 m) and a deck 17 ft wide.

Who owns Nfa A424 over Curry Branch?

It is owned by the County Highway Agency.