US Bridges

Nfa A305 over Barnes Hollow Branch

Fair

Putnam County, Tennessee · 1MI from I40 · Structure no. 710A3050003

Built
1940
85 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
28 ft
1 main span
Daily traffic
210
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A305 over Barnes Hollow Branch is a steel stringer/multi-beam or girder carrying Nfa A305 over Barnes Hollow Branch in Putnam 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 210 vehicles a day, roughly 2% of them trucks, projected to reach 336 by 2042. The structure is 28 ft (8.5 m) long and 21 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesNfa A305
CrossesBarnes Hollow Branch
Location1MI from I40
RouteCounty Highway 305
CountyPutnam County
StateTennessee
Coordinates36.14786, -85.40449
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.5 US tons
Inventory rating34.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length28 ft (8.5 m)
Longest span23 ft (7 m)
Deck width21 ft (6.4 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic210 (2020)
Projected traffic336 by 2042
Trucks2%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A305 over Barnes Hollow Branch built?

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

What condition is Nfa A305 over Barnes Hollow 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 September 2024.

How much traffic does Nfa A305 over Barnes Hollow Branch carry?

About 210 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A305 over Barnes Hollow Branch?

The structure is 28 ft (8.5 m) long with a longest span of 23 ft (7 m) and a deck 21 ft wide.

Who owns Nfa A305 over Barnes Hollow Branch?

It is owned by the County Highway Agency.