US Bridges

FAU 45 350165M over CSX Railroad

Fair

Davidson County, Tennessee · Between I65 & SR 6 · Structure no. 19E00150007

Built
1974
51 years old
Condition
Fair
inspected March 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
59 ft
1 main span
Daily traffic
33,948
2021 count
Owner
State
State Highway Agency

About this bridge

FAU 45 350165M over CSX Railroad is a prestressed concrete box beam or girders - single or spread carrying FAU 45 350165M over CSX Railroad in Davidson County, Tennessee. It was built in 1974, so it is 51 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 33,948 vehicles a day, roughly 9% of them trucks, projected to reach 39,870 by 2041. The structure is 59 ft (18 m) long and 86 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesFAU 45 350165M
CrossesCSX Railroad
LocationBetween I65 & SR 6
RouteState Highway 45
CountyDavidson County
StateTennessee
Coordinates36.26333, -86.71558
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length59 ft (18 m)
Longest span57 ft (17.4 m)
Deck width86 ft (26.2 m)
Roadway width72 ft (21.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic33,948 (2021)
Projected traffic39,870 by 2041
Trucks9%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed5 mi (8 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was FAU 45 350165M over CSX Railroad built?

It was built in 1974, making it 51 years old in 2025.

What condition is FAU 45 350165M over CSX Railroad 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 45 350165M over CSX Railroad carry?

About 33,948 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is FAU 45 350165M over CSX Railroad?

The structure is 59 ft (18 m) long with a longest span of 57 ft (17.4 m) and a deck 86 ft wide.

Who owns FAU 45 350165M over CSX Railroad?

It is owned by the State Highway Agency.