US Bridges

Nfa B490 over I26 & SR 67 Ramp

FairPosted for load

Washington County, Tennessee · Just N of I26 & SR 67 Jc · Structure no. 90I00260057

Built
1977
48 years old
Condition
Fair
inspected September 2023
Type
Tee Beam
Concrete Continuous
Length
399 ft
5 main spans
Daily traffic
3,020
2020 count
Owner
State
State Highway Agency

About this bridge

Nfa B490 over I26 & SR 67 Ramp is a concrete continuous tee beam carrying Nfa B490 over I26 & SR 67 Ramp in Washington County, Tennessee. It was built in 1977, so it is 48 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. Its operating status is: posted for load restriction.

It carries about 3,020 vehicles a day, roughly 2% of them trucks, projected to reach 4,832 by 2042. The structure is 399 ft (121.6 m) long and 36 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesNfa B490
CrossesI26 & SR 67 Ramp
LocationJust N of I26 & SR 67 Jc
RouteCity Street 490
CountyWashington County
StateTennessee
Coordinates36.31111, -82.33913
Functional classUrban 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.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating30.3 US tons
Inventory rating23.6 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length399 ft (121.6 m)
Longest span96 ft (29.3 m)
Deck width36 ft (10.9 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,020 (2020)
Projected traffic4,832 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed6.2 mi (10 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$1.4 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Nfa B490 over I26 & SR 67 Ramp built?

It was built in 1977, making it 48 years old in 2025.

What condition is Nfa B490 over I26 & SR 67 Ramp 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 September 2023.

How much traffic does Nfa B490 over I26 & SR 67 Ramp carry?

About 3,020 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa B490 over I26 & SR 67 Ramp?

The structure is 399 ft (121.6 m) long with a longest span of 96 ft (29.3 m) and a deck 36 ft wide.

Who owns Nfa B490 over I26 & SR 67 Ramp?

It is owned by the State Highway Agency.