US Bridges

I840 over Murfrees Fork Creek

Good

Williamson County, Tennessee · 10 MI W JCT I65 & I840 · Structure no. 94SR8400093

Built
2011
14 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
420 ft
3 main spans
Daily traffic
21,372
2021 count
Owner
State
State Highway Agency

About this bridge

I840 over Murfrees Fork Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying I840 over Murfrees Fork Creek in Williamson County, Tennessee. It was built in 2011, so it is 14 years old, younger 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 21,372 vehicles a day, roughly 7% of them trucks, projected to reach 31,603 by 2041. The structure is 420 ft (127.9 m) long and 43 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesI840
CrossesMurfrees Fork Creek
Location10 MI W JCT I65 & I840
RouteInterstate 840
Coordinates35.81972, -86.96043
Functional classRural 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.6 US tons
Inventory rating52.9 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans3
Design loadHL 93
Structure length420 ft (127.9 m)
Longest span150 ft (45.6 m)
Deck width43 ft (13.2 m)
Roadway width41 ft (12.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,372 (2021)
Projected traffic31,603 by 2041
Trucks7%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was I840 over Murfrees Fork Creek built?

It was built in 2011, making it 14 years old in 2025.

What condition is I840 over Murfrees Fork Creek 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 May 2023.

How much traffic does I840 over Murfrees Fork Creek carry?

About 21,372 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is I840 over Murfrees Fork Creek?

The structure is 420 ft (127.9 m) long with a longest span of 150 ft (45.6 m) and a deck 43 ft wide.

Who owns I840 over Murfrees Fork Creek?

It is owned by the State Highway Agency.