US Bridges

Nfa B042 350755J over Tennessee Southern RR

Good

Lawrence County, Tennessee · In Lawrenceburg · Structure no. 50M31680003

Built
2003
22 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
145 ft
1 main span
Daily traffic
750
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa B042 350755J over Tennessee Southern RR is a prestressed concrete stringer/multi-beam or girder carrying Nfa B042 350755J over Tennessee Southern RR in Lawrence County, Tennessee. It was built in 2003, so it is 22 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 750 vehicles a day, roughly 1% of them trucks, projected to reach 1,200 by 2042. The structure is 145 ft (44.2 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesNfa B042 350755J
CrossesTennessee Southern RR
LocationIn Lawrenceburg
RouteCity Street 42
Coordinates35.225, -87.33915
Functional classUrban Local

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.
Substructure8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than 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 rating65.4 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+1 approach)
Design loadHS 20
Structure length145 ft (44.2 m)
Longest span133 ft (40.5 m)
Deck width30 ft (9.1 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic750 (2020)
Projected traffic1,200 by 2042
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Nfa B042 350755J over Tennessee Southern RR built?

It was built in 2003, making it 22 years old in 2025.

What condition is Nfa B042 350755J over Tennessee Southern RR 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 June 2023.

How much traffic does Nfa B042 350755J over Tennessee Southern RR carry?

About 750 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is Nfa B042 350755J over Tennessee Southern RR?

The structure is 145 ft (44.2 m) long with a longest span of 133 ft (40.5 m) and a deck 30 ft wide.

Who owns Nfa B042 350755J over Tennessee Southern RR?

It is owned by the City or Municipal Highway Agency.