US Bridges

Nfa A243 over Big Limestone Creek

FairPosted for load

Washington County, Tennessee · Btwn US11E&SR75 near JCT · Structure no. 900A2430003

Built
1950
75 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
35 ft
1 main span
Daily traffic
150
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A243 over Big Limestone Creek is a steel stringer/multi-beam or girder carrying Nfa A243 over Big Limestone Creek in Washington County, Tennessee. It was built in 1950, so it is 75 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 150 vehicles a day, roughly 2% of them trucks, projected to reach 240 by 2042. The structure is 35 ft (10.7 m) long and 25 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesNfa A243
CrossesBig Limestone Creek
LocationBtwn US11E&SR75 near JCT
RouteCounty Highway 243
Coordinates36.26865, -82.58393
Functional classRural 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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating10.4 US tons
Inventory rating7.8 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length35 ft (10.7 m)
Longest span33 ft (10.1 m)
Deck width25 ft (7.6 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2020)
Projected traffic240 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$101,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A243 over Big Limestone Creek built?

It was built in 1950, making it 75 years old in 2025.

What condition is Nfa A243 over Big Limestone 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 May 2024.

How much traffic does Nfa A243 over Big Limestone Creek carry?

About 150 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A243 over Big Limestone Creek?

The structure is 35 ft (10.7 m) long with a longest span of 33 ft (10.1 m) and a deck 25 ft wide.

Who owns Nfa A243 over Big Limestone Creek?

It is owned by the County Highway Agency.