US Bridges

Nfa 1666 (sa 5510) over Mosses Creek

Fair

McNairy County, Tennessee · 6 MI S of US64 · Structure no. 55016660001

Built
1976
49 years old
Condition
Fair
inspected August 2024
Type
Culvert
Concrete Continuous
Length
34 ft
2 main spans
Daily traffic
317
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 1666 (sa 5510) over Mosses Creek is a concrete continuous culvert carrying Nfa 1666 (sa 5510) over Mosses Creek in McNairy County, Tennessee. It was built in 1976, so it is 49 years old, older than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 317 vehicles a day, roughly 3% of them trucks, projected to reach 784 by 2040. The structure is 34 ft (10.4 m) long and 42 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesNfa 1666 (sa 5510)
CrossesMosses Creek
Location6 MI S of US64
RouteCounty Highway 1666
Coordinates35.132, -88.67756
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating92.2 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 15
Structure length34 ft (10.4 m)
Longest span15 ft (4.6 m)
Deck width42 ft (12.8 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic317 (2021)
Projected traffic784 by 2040
Trucks3%
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 1666 (sa 5510) over Mosses Creek built?

It was built in 1976, making it 49 years old in 2025.

What condition is Nfa 1666 (sa 5510) over Mosses Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2024.

How much traffic does Nfa 1666 (sa 5510) over Mosses Creek carry?

About 317 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 1666 (sa 5510) over Mosses Creek?

The structure is 34 ft (10.4 m) long with a longest span of 15 ft (4.6 m) and a deck 42 ft wide.

Who owns Nfa 1666 (sa 5510) over Mosses Creek?

It is owned by the County Highway Agency.