US Bridges

Nfa A301 over Little Salt Lick Creek

Good

Macon County, Tennessee · 3 M N Red Boiling Springs · Structure no. 560A3010001

Built
1992
33 years old
Condition
Good
inspected August 2023
Type
Culvert
Concrete Continuous
Length
57 ft
3 main spans
Daily traffic
40
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A301 over Little Salt Lick Creek is a concrete continuous culvert carrying Nfa A301 over Little Salt Lick Creek in Macon County, Tennessee. It was built in 1992, so it is 33 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 40 vehicles a day, roughly 2% of them trucks, projected to reach 64 by 2041. The structure is 57 ft (17.4 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesNfa A301
CrossesLittle Salt Lick Creek
Location3 M N Red Boiling Springs
RouteCounty Highway 301
CountyMacon County
StateTennessee
Coordinates36.5746, -85.83127
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 inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating98.2 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length57 ft (17.4 m)
Longest span15 ft (4.6 m)
Deck width28 ft (8.4 m)
Roadway width22 ft (6.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (2020)
Projected traffic64 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 A301 over Little Salt Lick Creek built?

It was built in 1992, making it 33 years old in 2025.

What condition is Nfa A301 over Little Salt Lick Creek 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 August 2023.

How much traffic does Nfa A301 over Little Salt Lick Creek carry?

About 40 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A301 over Little Salt Lick Creek?

The structure is 57 ft (17.4 m) long with a longest span of 15 ft (4.6 m) and a deck 28 ft wide.

Who owns Nfa A301 over Little Salt Lick Creek?

It is owned by the County Highway Agency.