US Bridges

I40 Rt LN over Pine Ridge RD (nfa 1160)

Fair

Roane County, Tennessee · 1 M SE JCT I40&SR29 · Structure no. 73I00400009

Built
1969
56 years old
Condition
Fair
inspected September 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
195 ft
4 main spans
Daily traffic
36,375
2021 count
Owner
State
State Highway Agency

About this bridge

I40 Rt LN over Pine Ridge RD (nfa 1160) is a prestressed concrete continuous box beam or girders - single or spread carrying I40 Rt LN over Pine Ridge RD (nfa 1160) in Roane County, Tennessee. It was built in 1969, so it is 56 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 36,375 vehicles a day, roughly 6% of them trucks, projected to reach 58,200 by 2042. The structure is 195 ft (59.4 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI40 Rt LN
CrossesPine Ridge RD (nfa 1160)
Location1 M SE JCT I40&SR29
RouteInterstate 40
Coordinates35.89499, -84.54583
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.4 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length195 ft (59.4 m)
Longest span52 ft (15.8 m)
Deck width45 ft (13.6 m)
Roadway width38 ft (11.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic36,375 (2021)
Projected traffic58,200 by 2042
Trucks6%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 I40 Rt LN over Pine Ridge RD (nfa 1160) built?

It was built in 1969, making it 56 years old in 2025.

What condition is I40 Rt LN over Pine Ridge RD (nfa 1160) 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 2024.

How much traffic does I40 Rt LN over Pine Ridge RD (nfa 1160) carry?

About 36,375 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is I40 Rt LN over Pine Ridge RD (nfa 1160)?

The structure is 195 ft (59.4 m) long with a longest span of 52 ft (15.8 m) and a deck 45 ft wide.

Who owns I40 Rt LN over Pine Ridge RD (nfa 1160)?

It is owned by the State Highway Agency.