US Bridges

Nfa A657 over Nfa A657 / I155

Good

Dyer County, Tennessee · 1.2 MI W JCT I155&SR78 · Structure no. 23I01550021

Built
1979
46 years old
Condition
Good
inspected October 2023
Type
Box Beam or Girders - Single or Spread
Concrete Continuous
Length
248 ft
2 main spans
Daily traffic
260
2020 count
Owner
State
State Highway Agency

About this bridge

Nfa A657 over Nfa A657 / I155 is a concrete continuous box beam or girders - single or spread carrying Nfa A657 over Nfa A657 / I155 in Dyer County, Tennessee. It was built in 1979, so it is 46 years old, younger than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 260 vehicles a day, roughly 4% of them trucks, projected to reach 416 by 2042. The structure is 248 ft (75.6 m) long and 32 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesNfa A657
CrossesNfa A657 / I155
Location1.2 MI W JCT I155&SR78
RouteCounty Highway 657
CountyDyer County
StateTennessee
Coordinates36.06908, -89.42631
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length248 ft (75.6 m)
Longest span126 ft (38.4 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic260 (2020)
Projected traffic416 by 2042
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Nfa A657 over Nfa A657 / I155 built?

It was built in 1979, making it 46 years old in 2025.

What condition is Nfa A657 over Nfa A657 / I155 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2023.

How much traffic does Nfa A657 over Nfa A657 / I155 carry?

About 260 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is Nfa A657 over Nfa A657 / I155?

The structure is 248 ft (75.6 m) long with a longest span of 126 ft (38.4 m) and a deck 32 ft wide.

Who owns Nfa A657 over Nfa A657 / I155?

It is owned by the State Highway Agency.