US Bridges

Nfa A510 over Nelson Creek

FairPosted for load

Lauderdale County, Tennessee · Near SR209 Jct. · Structure no. 490A0830005

Built
1975
50 years old
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
41 ft
2 main spans
Daily traffic
260
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A510 over Nelson Creek is a steel continuous stringer/multi-beam or girder carrying Nfa A510 over Nelson Creek in Lauderdale County, Tennessee. It was built in 1975, so it is 50 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 260 vehicles a day, roughly 1% of them trucks, projected to reach 416 by 2042. The structure is 41 ft (12.5 m) long and 26 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesNfa A510
CrossesNelson Creek
LocationNear SR209 Jct.
RouteCounty Highway 510
CountyLauderdale County
StateTennessee
Coordinates35.77106, -89.51311
Functional classUrban Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
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 rating13.9 US tons
Inventory rating10.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckWood or timber
Main spans2
Design loadUnknown
Structure length41 ft (12.5 m)
Longest span25 ft (7.6 m)
Deck width26 ft (8 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic260 (2020)
Projected traffic416 by 2042
Trucks1%
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$298,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A510 over Nelson Creek built?

It was built in 1975, making it 50 years old in 2025.

What condition is Nfa A510 over Nelson 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 December 2023.

How much traffic does Nfa A510 over Nelson Creek carry?

About 260 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is Nfa A510 over Nelson Creek?

The structure is 41 ft (12.5 m) long with a longest span of 25 ft (7.6 m) and a deck 26 ft wide.

Who owns Nfa A510 over Nelson Creek?

It is owned by the County Highway Agency.