US Bridges

I81 Rp -Weigh Sta over Norfolk Southern RR

Fair

Greene County, Tennessee · 1.5 MI W of SR 34 · Structure no. 30I00810095

Built
1994
31 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
174 ft
3 main spans
Daily traffic
44,318
2021 count
Owner
State
State Highway Agency

About this bridge

I81 Rp -Weigh Sta over Norfolk Southern RR is a prestressed concrete continuous stringer/multi-beam or girder carrying I81 Rp -Weigh Sta over Norfolk Southern RR in Greene County, Tennessee. It was built in 1994, so it is 31 years old, younger 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 44,318 vehicles a day, roughly 6% of them trucks, projected to reach 10,688 by 2040. The structure is 174 ft (53 m) long and 32 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

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CarriesI81 Rp -Weigh Sta
CrossesNorfolk Southern RR
Location1.5 MI W of SR 34
RouteInterstate 81
CountyGreene County
StateTennessee
Coordinates36.21553, -83.06633
Functional classRural 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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length174 ft (53 m)
Longest span60 ft (18.3 m)
Deck width32 ft (9.8 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic44,318 (2021)
Projected traffic10,688 by 2040
Trucks6%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed123.7 mi (199 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 statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.2 million (2020 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I81 Rp -Weigh Sta over Norfolk Southern RR built?

It was built in 1994, making it 31 years old in 2025.

What condition is I81 Rp -Weigh Sta over Norfolk Southern RR 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 July 2024.

How much traffic does I81 Rp -Weigh Sta over Norfolk Southern RR carry?

About 44,318 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is I81 Rp -Weigh Sta over Norfolk Southern RR?

The structure is 174 ft (53 m) long with a longest span of 60 ft (18.3 m) and a deck 32 ft wide.

Who owns I81 Rp -Weigh Sta over Norfolk Southern RR?

It is owned by the State Highway Agency.