US Bridges

I40 over Black Hollow Rd/Nfa 1203

Fair

Roane County, Tennessee · Near Harriman (west) · Structure no. 73I00400002

Built
1969
56 years old
Condition
Fair
inspected September 2024
Type
Tee Beam
Concrete Continuous
Length
191 ft
3 main spans
Daily traffic
33,118
2021 count
Owner
State
State Highway Agency

About this bridge

I40 over Black Hollow Rd/Nfa 1203 is a concrete continuous tee beam carrying I40 over Black Hollow Rd/Nfa 1203 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 5 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 33,118 vehicles a day, roughly 6% of them trucks, projected to reach 52,989 by 2042. The structure is 191 ft (58.2 m) long and 42 ft wide. If it were closed, the detour would be 29.8 mi (48 km).

CarriesI40
CrossesBlack Hollow Rd/Nfa 1203
LocationNear Harriman (west)
RouteInterstate 40
Coordinates35.88682, -84.68665
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.1 US tons
Inventory rating25.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length191 ft (58.2 m)
Longest span75 ft (22.9 m)
Deck width42 ft (12.8 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic33,118 (2021)
Projected traffic52,989 by 2042
Trucks6%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed29.8 mi (48 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 over Black Hollow Rd/Nfa 1203 built?

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

What condition is I40 over Black Hollow Rd/Nfa 1203 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 over Black Hollow Rd/Nfa 1203 carry?

About 33,118 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is I40 over Black Hollow Rd/Nfa 1203?

The structure is 191 ft (58.2 m) long with a longest span of 75 ft (22.9 m) and a deck 42 ft wide.

Who owns I40 over Black Hollow Rd/Nfa 1203?

It is owned by the State Highway Agency.