US Bridges

FAU 24 over Mill Creek

Fair

Davidson County, Tennessee · 2 M W JCT SR29&SR255 · Structure no. 19SR0240015

Built
1928
97 years old, rebuilt 1972
Condition
Fair
inspected March 2023
Type
Arch - Deck
Concrete
Length
123 ft
1 main span
Daily traffic
17,434
2021 count
Owner
State
State Highway Agency

About this bridge

FAU 24 over Mill Creek is a concrete arch - deck carrying FAU 24 over Mill Creek in Davidson County, Tennessee. It was built in 1928 and reconstructed in 1972, so it is 97 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 17,434 vehicles a day, roughly 13% of them trucks, projected to reach 33,107 by 2041. The structure is 123 ft (37.5 m) long and 66 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesFAU 24
CrossesMill Creek
Location2 M W JCT SR29&SR255
RouteU.S. Route 70
CountyDavidson County
StateTennessee
Coordinates36.1637, -86.69855
Functional classUrban Other Principal Arterial

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.7 US tons
Inventory rating26.8 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length123 ft (37.5 m)
Longest span120 ft (36.6 m)
Deck width66 ft (20.1 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,434 (2021)
Projected traffic33,107 by 2041
Trucks13%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$2 million (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FAU 24 over Mill Creek built?

It was built in 1928, making it 97 years old in 2025. It was reconstructed in 1972.

What condition is FAU 24 over Mill Creek 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 March 2023.

How much traffic does FAU 24 over Mill Creek carry?

About 17,434 vehicles per day (2021 count), of which roughly 13% are trucks.

How long is FAU 24 over Mill Creek?

The structure is 123 ft (37.5 m) long with a longest span of 120 ft (36.6 m) and a deck 66 ft wide.

Who owns FAU 24 over Mill Creek?

It is owned by the State Highway Agency.