US Bridges

SR 476 over Elk River

Fair

Franklin County, Tennessee · 4 MI North of SR 50 · Structure no. 26S43300001

Built
1972
53 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,012 ft
6 main spans
Daily traffic
2,165
2021 count
Owner
State
State Highway Agency

About this bridge

SR 476 over Elk River is a steel continuous stringer/multi-beam or girder carrying SR 476 over Elk River in Franklin County, Tennessee. It was built in 1972, so it is 53 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 2,165 vehicles a day, roughly 5% of them trucks, projected to reach 3,518 by 2042. The structure is 1,012 ft (308.5 m) long and 30 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

Location

Open in Google Maps
CarriesSR 476
CrossesElk River
Location4 MI North of SR 50
RouteState Highway 476
CountyFranklin County
StateTennessee
Coordinates35.21708, -86.23832
Functional classRural Major 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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
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 alignment6: Equal to present minimum criteria
Operating rating72.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckOther
Main spans6
Design loadH 15
Structure length1,012 ft (308.5 m)
Longest span169 ft (51.5 m)
Deck width30 ft (9.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,165 (2021)
Projected traffic3,518 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$5.1 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 476 over Elk River built?

It was built in 1972, making it 53 years old in 2025.

What condition is SR 476 over Elk River 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 SR 476 over Elk River carry?

About 2,165 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is SR 476 over Elk River?

The structure is 1,012 ft (308.5 m) long with a longest span of 169 ft (51.5 m) and a deck 30 ft wide.

Who owns SR 476 over Elk River?

It is owned by the State Highway Agency.