US Bridges

Nfa A478 over East Fork Greenlick Cree

Good

Maury County, Tennessee · 5 M SW Columbia · Structure no. 600A4780001

Built
1983
42 years old
Condition
Good
inspected June 2024
Type
Culvert
Concrete Continuous
Length
25 ft
2 main spans
Daily traffic
2,660
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A478 over East Fork Greenlick Cree is a concrete continuous culvert carrying Nfa A478 over East Fork Greenlick Cree in Maury 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 2,660 vehicles a day, roughly 2% of them trucks, projected to reach 4,256 by 2040. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 5 mi (8 km).

CarriesNfa A478
CrossesEast Fork Greenlick Cree
Location5 M SW Columbia
RouteCounty Highway 478
Coordinates35.60085, -87.11438
Functional classUrban 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 protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,660 (2020)
Projected traffic4,256 by 2040
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 A478 over East Fork Greenlick Cree built?

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

What condition is Nfa A478 over East Fork Greenlick Cree 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 June 2024.

How much traffic does Nfa A478 over East Fork Greenlick Cree carry?

About 2,660 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A478 over East Fork Greenlick Cree?

The structure is 25 ft (7.6 m) long with a longest span of 10 ft (3 m).

Who owns Nfa A478 over East Fork Greenlick Cree?

It is owned by the County Highway Agency.