US Bridges

Nfa A973 over Mcnew Branch

Good

Greene County, Tennessee · 2.1 M S of US11E-SR348 Jc · Structure no. 300A9730003

Built
1950
75 years old, rebuilt 1970
Condition
Good
inspected February 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
28 ft
1 main span
Daily traffic
390
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A973 over Mcnew Branch is a steel stringer/multi-beam or girder carrying Nfa A973 over Mcnew Branch in Greene County, Tennessee. It was built in 1950 and reconstructed in 1970, so it is 75 years old, older 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 390 vehicles a day, roughly 2% of them trucks, projected to reach 624 by 2041. The structure is 28 ft (8.4 m) long and 28 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesNfa A973
CrossesMcnew Branch
Location2.1 M S of US11E-SR348 Jc
RouteCounty Highway 973
Coordinates36.15705, -82.9585
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating54.6 US tons
Inventory rating32.7 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 15
Structure length28 ft (8.4 m)
Longest span24 ft (7.4 m)
Deck width28 ft (8.5 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic390 (2020)
Projected traffic624 by 2041
Trucks2%
Lanes on structure2
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 A973 over Mcnew Branch built?

It was built in 1950, making it 75 years old in 2025. It was reconstructed in 1970.

What condition is Nfa A973 over Mcnew 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 February 2025.

How much traffic does Nfa A973 over Mcnew Branch carry?

About 390 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A973 over Mcnew Branch?

The structure is 28 ft (8.4 m) long with a longest span of 24 ft (7.4 m) and a deck 28 ft wide.

Who owns Nfa A973 over Mcnew Branch?

It is owned by the County Highway Agency.