US Bridges

Nfa 2090 (sa 8506) over Hawkins Branch

Good

Trousdale County, Tennessee · 2 MI S of Macon Co. · Structure no. 85020900001

Built
1970
55 years old
Condition
Good
inspected February 2023
Type
Culvert
Concrete Continuous
Length
39 ft
3 main spans
Daily traffic
920
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 2090 (sa 8506) over Hawkins Branch is a concrete continuous culvert carrying Nfa 2090 (sa 8506) over Hawkins Branch in Trousdale County, Tennessee. It was built in 1970, so it is 55 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 920 vehicles a day, roughly 3% of them trucks, projected to reach 1,264 by 2041. The structure is 39 ft (11.9 m) long. If it were closed, the detour would be 8.1 mi (13 km).

CarriesNfa 2090 (sa 8506)
CrossesHawkins Branch
Location2 MI S of Macon Co.
RouteCounty Highway 2090
Coordinates36.4442, -86.20108
Functional classRural Minor Collector

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 inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.4 US tons
Inventory rating31.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length39 ft (11.9 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic920 (2021)
Projected traffic1,264 by 2041
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 2090 (sa 8506) over Hawkins Branch built?

It was built in 1970, making it 55 years old in 2025.

What condition is Nfa 2090 (sa 8506) over Hawkins 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 2023.

How much traffic does Nfa 2090 (sa 8506) over Hawkins Branch carry?

About 920 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 2090 (sa 8506) over Hawkins Branch?

The structure is 39 ft (11.9 m) long with a longest span of 12 ft (3.7 m).

Who owns Nfa 2090 (sa 8506) over Hawkins Branch?

It is owned by the County Highway Agency.