US Bridges

Nfa 2473 (sa 2910) over Richland Creek

Fair

Grainger County, Tennessee · West of US11 · Structure no. 29024730001

Built
1923
102 years old
Condition
Fair
inspected April 2023
Type
Arch - Deck
Concrete
Length
40 ft
1 main span
Daily traffic
931
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 2473 (sa 2910) over Richland Creek is a concrete arch - deck carrying Nfa 2473 (sa 2910) over Richland Creek in Grainger County, Tennessee. It was built in 1923, so it is 102 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 931 vehicles a day, roughly 3% of them trucks, projected to reach 1,333 by 2041. The structure is 40 ft (12.3 m) long and 17 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesNfa 2473 (sa 2910)
CrossesRichland Creek
LocationWest of US11
RouteCounty Highway 2473
CountyGrainger County
StateTennessee
Coordinates36.29128, -83.48206
Functional classRural Minor Collector

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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 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 adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating39.7 US tons
Inventory rating26.8 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length40 ft (12.3 m)
Longest span38 ft (11.6 m)
Deck width17 ft (5.3 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic931 (2021)
Projected traffic1,333 by 2041
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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$229,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 2473 (sa 2910) over Richland Creek built?

It was built in 1923, making it 102 years old in 2025.

What condition is Nfa 2473 (sa 2910) 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 2473 (sa 2910) over Richland Creek carry?

About 931 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 2473 (sa 2910) over Richland Creek?

The structure is 40 ft (12.3 m) long with a longest span of 38 ft (11.6 m) and a deck 17 ft wide.

Who owns Nfa 2473 (sa 2910) over Richland Creek?

It is owned by the County Highway Agency.