US Bridges

Nfa A398 over N. Winston Rd. / I40

Good

Knox County, Tennessee · 1 M SE of SR1 · Structure no. 47I00400019

Built
2004
21 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
290 ft
2 main spans
Daily traffic
4,363
2021 count
Owner
State
State Highway Agency

About this bridge

Nfa A398 over N. Winston Rd. / I40 is a steel continuous stringer/multi-beam or girder carrying Nfa A398 over N. Winston Rd. / I40 in Knox County, Tennessee. It was built in 2004, so it is 21 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 4,363 vehicles a day, roughly 1% of them trucks, projected to reach 8,128 by 2041. The structure is 290 ft (88.4 m) long and 40 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesNfa A398
CrossesN. Winston Rd. / I40
Location1 M SE of SR1
RouteCity Street 398
CountyKnox County
StateTennessee
Coordinates35.92769, -84.04552
Functional classUrban Collector

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 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length290 ft (88.4 m)
Longest span155 ft (47.1 m)
Deck width40 ft (12.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,363 (2021)
Projected traffic8,128 by 2041
Trucks1%
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$4.2 million (2021 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Nfa A398 over N. Winston Rd. / I40 built?

It was built in 2004, making it 21 years old in 2025.

What condition is Nfa A398 over N. Winston Rd. / I40 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 2024.

How much traffic does Nfa A398 over N. Winston Rd. / I40 carry?

About 4,363 vehicles per day (2021 count), of which roughly 1% are trucks.

How long is Nfa A398 over N. Winston Rd. / I40?

The structure is 290 ft (88.4 m) long with a longest span of 155 ft (47.1 m) and a deck 40 ft wide.

Who owns Nfa A398 over N. Winston Rd. / I40?

It is owned by the State Highway Agency.