US Bridges

Nfa A327 over Mayberry Branch

Good

Perry County, Tennessee · Mary Lois Richardson RD · Structure no. 680A5690001

Built
2006
19 years old
Condition
Good
inspected April 2023
Type
Culvert
Concrete Continuous
Length
27 ft
2 main spans
Daily traffic
30
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A327 over Mayberry Branch is a concrete continuous culvert carrying Nfa A327 over Mayberry Branch in Perry County, Tennessee. It was built in 2006, so it is 19 years old, younger than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 30 vehicles a day, roughly 10% of them trucks, projected to reach 48 by 2041. The structure is 27 ft (8.3 m) long and 14 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesNfa A327
CrossesMayberry Branch
LocationMary Lois Richardson RD
RouteCounty Highway 327
CountyPerry County
StateTennessee
Coordinates35.49033, -87.88554
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length27 ft (8.3 m)
Longest span12 ft (3.7 m)
Deck width14 ft (4.2 m)
Roadway width12 ft (3.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2020)
Projected traffic48 by 2041
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$140,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A327 over Mayberry Branch built?

It was built in 2006, making it 19 years old in 2025.

What condition is Nfa A327 over Mayberry Branch in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2023.

How much traffic does Nfa A327 over Mayberry Branch carry?

About 30 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Nfa A327 over Mayberry Branch?

The structure is 27 ft (8.3 m) long with a longest span of 12 ft (3.7 m) and a deck 14 ft wide.

Who owns Nfa A327 over Mayberry Branch?

It is owned by the County Highway Agency.