US Bridges

Nfa C473 over Reedy Creek

FairPosted for load

Sullivan County, Tennessee · Just SE of US11W-SR37 JCT · Structure no. 820C4730001

Built
1940
85 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
33 ft
1 main span
Daily traffic
8,060
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa C473 over Reedy Creek is a steel stringer/multi-beam or girder carrying Nfa C473 over Reedy Creek in Sullivan County, Tennessee. It was built in 1940, so it is 85 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 8,060 vehicles a day, roughly 2% of them trucks, projected to reach 12,896 by 2042. The structure is 33 ft (10.2 m) long and 21 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesNfa C473
CrossesReedy Creek
LocationJust SE of US11W-SR37 JCT
RouteCounty Highway 473
CountySullivan County
StateTennessee
Coordinates36.57554, -82.3535
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
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 inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating27.4 US tons
Inventory rating21.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length33 ft (10.2 m)
Longest span29 ft (8.9 m)
Deck width21 ft (6.4 m)
Roadway width20 ft (6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,060 (2020)
Projected traffic12,896 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

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$371,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa C473 over Reedy Creek built?

It was built in 1940, making it 85 years old in 2025.

What condition is Nfa C473 over Reedy 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 February 2024.

How much traffic does Nfa C473 over Reedy Creek carry?

About 8,060 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa C473 over Reedy Creek?

The structure is 33 ft (10.2 m) long with a longest span of 29 ft (8.9 m) and a deck 21 ft wide.

Who owns Nfa C473 over Reedy Creek?

It is owned by the County Highway Agency.