US Bridges

Nfa D502 over Little Soddy Creek

Fair

Hamilton County, Tennessee · In City of Soddy-Daisy · Structure no. 330D5020001

Built
1935
90 years old
Condition
Fair
inspected January 2024
Type
Culvert
Concrete Continuous
Length
32 ft
2 main spans
Daily traffic
1,570
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa D502 over Little Soddy Creek is a concrete continuous culvert carrying Nfa D502 over Little Soddy Creek in Hamilton County, Tennessee. It was built in 1935, so it is 90 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 1,570 vehicles a day, roughly 2% of them trucks, projected to reach 2,512 by 2042. The structure is 32 ft (9.8 m) long and 27 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesNfa D502
CrossesLittle Soddy Creek
LocationIn City of Soddy-Daisy
RouteCity Street 502
Coordinates35.28869, -85.16502
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.6 US tons
Inventory rating31.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length32 ft (9.8 m)
Longest span10 ft (3 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,570 (2020)
Projected traffic2,512 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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$134,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa D502 over Little Soddy Creek built?

It was built in 1935, making it 90 years old in 2025.

What condition is Nfa D502 over Little Soddy 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 January 2024.

How much traffic does Nfa D502 over Little Soddy Creek carry?

About 1,570 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa D502 over Little Soddy Creek?

The structure is 32 ft (9.8 m) long with a longest span of 10 ft (3 m) and a deck 27 ft wide.

Who owns Nfa D502 over Little Soddy Creek?

It is owned by the City or Municipal Highway Agency.