US Bridges

I40 841867P over SR 61 Sou Rwy & Branch

Good

Roane County, Tennessee · In Harriman · Structure no. 73I00400005

Built
1969
56 years old, rebuilt 1990
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
600 ft
7 main spans
Daily traffic
33,118
2021 count
Owner
State
State Highway Agency

About this bridge

I40 841867P over SR 61 Sou Rwy & Branch is a steel continuous stringer/multi-beam or girder carrying I40 841867P over SR 61 Sou Rwy & Branch in Roane County, Tennessee. It was built in 1969 and reconstructed in 1990, 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 good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 33,118 vehicles a day, roughly 6% of them trucks, projected to reach 52,989 by 2042. The structure is 600 ft (182.9 m) long and 101 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI40 841867P
CrossesSR 61 Sou Rwy & Branch
LocationIn Harriman
RouteInterstate 40
Coordinates35.90987, -84.58871
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating25 US tons
Inventory rating19.3 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans7
Design loadHS 20
Structure length600 ft (182.9 m)
Longest span115 ft (35.1 m)
Deck width101 ft (30.7 m)
Roadway width98 ft (29.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic33,118 (2021)
Projected traffic52,989 by 2042
Trucks6%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway, waterway and railroad
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was I40 841867P over SR 61 Sou Rwy & Branch built?

It was built in 1969, making it 56 years old in 2025. It was reconstructed in 1990.

What condition is I40 841867P over SR 61 Sou Rwy & Branch 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 September 2024.

How much traffic does I40 841867P over SR 61 Sou Rwy & Branch carry?

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

How long is I40 841867P over SR 61 Sou Rwy & Branch?

The structure is 600 ft (182.9 m) long with a longest span of 115 ft (35.1 m) and a deck 101 ft wide.

Who owns I40 841867P over SR 61 Sou Rwy & Branch?

It is owned by the State Highway Agency.