US Bridges

Nfa A273 over Cove Branch

Good

Williamson County, Tennessee · 4.9 MI SW JCT SR11&SR16 · Structure no. 940A2730001

Built
1983
42 years old
Condition
Good
inspected April 2023
Type
Culvert
Concrete Continuous
Length
40 ft
3 main spans
Daily traffic
120
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A273 over Cove Branch is a concrete continuous culvert carrying Nfa A273 over Cove Branch in Williamson County, Tennessee. It was built in 1983, so it is 42 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 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 120 vehicles a day, roughly 2% of them trucks, projected to reach 192 by 2041. The structure is 40 ft (12.2 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesNfa A273
CrossesCove Branch
Location4.9 MI SW JCT SR11&SR16
RouteCounty Highway 273
Coordinates35.75217, -86.71774
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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating28.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length40 ft (12.2 m)
Longest span12 ft (3.7 m)
Deck width31 ft (9.6 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic120 (2020)
Projected traffic192 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A273 over Cove Branch built?

It was built in 1983, making it 42 years old in 2025.

What condition is Nfa A273 over Cove 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 A273 over Cove Branch carry?

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

How long is Nfa A273 over Cove Branch?

The structure is 40 ft (12.2 m) long with a longest span of 12 ft (3.7 m) and a deck 31 ft wide.

Who owns Nfa A273 over Cove Branch?

It is owned by the County Highway Agency.