US Bridges

Nfa A054 over CSX Railroad

Fair

Williamson County, Tennessee · 5.2 MI SW JCT SR11&SR16 · Structure no. 940A0540001

Built
1920
105 years old
Condition
Fair
inspected April 2023
Type
Arch - Deck
Concrete
Length
85 ft
1 main span
Daily traffic
60
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A054 over CSX Railroad is a concrete arch - deck carrying Nfa A054 over CSX Railroad in Williamson County, Tennessee. It was built in 1920, so it is 105 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 60 vehicles a day, roughly 2% of them trucks, projected to reach 96 by 2041. The structure is 85 ft (25.9 m) long and 15 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesNfa A054
CrossesCSX Railroad
Location5.2 MI SW JCT SR11&SR16
RouteCounty Highway 54
CountyWilliamson County
StateTennessee
Coordinates35.73257, -86.69912
Functional classRural Local

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating39.7 US tons
Inventory rating26.8 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length85 ft (25.9 m)
Longest span60 ft (18.3 m)
Deck width15 ft (4.6 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60 (2020)
Projected traffic96 by 2041
Trucks2%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesRailroad
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$542,000 (2021 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Nfa A054 over CSX Railroad built?

It was built in 1920, making it 105 years old in 2025.

What condition is Nfa A054 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 April 2023.

How much traffic does Nfa A054 over CSX Railroad carry?

About 60 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A054 over CSX Railroad?

The structure is 85 ft (25.9 m) long with a longest span of 60 ft (18.3 m) and a deck 15 ft wide.

Who owns Nfa A054 over CSX Railroad?

It is owned by the County Highway Agency.