US Bridges

FAU 4951 over I40

Fair

Davidson County, Tennessee · Massman DR @ Spence Lane · Structure no. 19I00400119

Built
1963
62 years old, rebuilt 2003
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
287 ft
2 main spans
Daily traffic
3,377
2021 count
Owner
State
State Highway Agency

About this bridge

FAU 4951 over I40 is a steel continuous stringer/multi-beam or girder carrying FAU 4951 over I40 in Davidson County, Tennessee. It was built in 1963 and reconstructed in 2003, so it is 62 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 3,377 vehicles a day, roughly 3% of them trucks, projected to reach 6,354 by 2042. The structure is 287 ft (87.5 m) long and 46 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesFAU 4951
CrossesI40
LocationMassman DR @ Spence Lane
RouteCity Street 4951
Coordinates36.14272, -86.71044
Functional classUrban Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.5 US tons
Inventory rating32.8 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length287 ft (87.5 m)
Longest span144 ft (44 m)
Deck width46 ft (14 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,377 (2021)
Projected traffic6,354 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was FAU 4951 over I40 built?

It was built in 1963, making it 62 years old in 2025. It was reconstructed in 2003.

What condition is FAU 4951 over I40 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 December 2023.

How much traffic does FAU 4951 over I40 carry?

About 3,377 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is FAU 4951 over I40?

The structure is 287 ft (87.5 m) long with a longest span of 144 ft (44 m) and a deck 46 ft wide.

Who owns FAU 4951 over I40?

It is owned by the State Highway Agency.