US Bridges

Nfa A230 over Middle Creek

Fair

Sevier County, Tennessee · N of US411 in Sevierville · Structure no. 780A2300001

Built
1948
77 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
50 ft
2 main spans
Daily traffic
110
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa A230 over Middle Creek is a steel stringer/multi-beam or girder carrying Nfa A230 over Middle Creek in Sevier County, Tennessee. It was built in 1948, so it is 77 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 110 vehicles a day, roughly 2% of them trucks, projected to reach 176 by 2041. The structure is 50 ft (15.1 m) long and 14 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesNfa A230
CrossesMiddle Creek
LocationN of US411 in Sevierville
RouteCity Street 230
Coordinates35.86925, -83.56014
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.5 US tons
Inventory rating35.7 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length50 ft (15.1 m)
Longest span24 ft (7.3 m)
Deck width14 ft (4.3 m)
Roadway width12 ft (3.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic110 (2020)
Projected traffic176 by 2041
Trucks2%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$280,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A230 over Middle Creek built?

It was built in 1948, making it 77 years old in 2025.

What condition is Nfa A230 over Middle 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 June 2023.

How much traffic does Nfa A230 over Middle Creek carry?

About 110 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A230 over Middle Creek?

The structure is 50 ft (15.1 m) long with a longest span of 24 ft (7.3 m) and a deck 14 ft wide.

Who owns Nfa A230 over Middle Creek?

It is owned by the City or Municipal Highway Agency.