US Bridges

Nfa A352 over Richland Creek

FairPosted for load

Grainger County, Tennessee · Old Springs Road · Structure no. 290A3520001

Built
1970
55 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
36 ft
1 main span
Daily traffic
150
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa A352 over Richland Creek is a steel stringer/multi-beam or girder carrying Nfa A352 over Richland Creek in Grainger County, Tennessee. It was built in 1970, so it is 55 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 3% of them trucks, projected to reach 240 by 2042. The structure is 36 ft (11 m) long and 12 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesNfa A352
CrossesRichland Creek
LocationOld Springs Road
RouteCity Street 352
Coordinates36.26797, -83.54996
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating7.2 US tons
Inventory rating5.4 US tons

Structure

MaterialSteel
DeckSteel plate
Main spans1
Design loadUnknown
Structure length36 ft (11 m)
Longest span34 ft (10.4 m)
Deck width12 ft (3.7 m)
Roadway width11 ft (3.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2020)
Projected traffic240 by 2042
Trucks3%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 with deck rehabilitation or replacement
Estimated improvement cost$247,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A352 over Richland Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is Nfa A352 over Richland 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 April 2023.

How much traffic does Nfa A352 over Richland Creek carry?

About 150 vehicles per day (2020 count), of which roughly 3% are trucks.

How long is Nfa A352 over Richland Creek?

The structure is 36 ft (11 m) long with a longest span of 34 ft (10.4 m) and a deck 12 ft wide.

Who owns Nfa A352 over Richland Creek?

It is owned by the City or Municipal Highway Agency.