US Bridges

Nfa F485 350243S over CSX Railroad

Fair

Davidson County, Tennessee · Melrose Ave@nolensvillerd · Structure no. 190B1390001

Built
1992
33 years old
Condition
Fair
inspected August 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
105 ft
1 main span
Daily traffic
9,440
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa F485 350243S over CSX Railroad is a prestressed concrete box beam or girders - multiple carrying Nfa F485 350243S over CSX Railroad in Davidson County, Tennessee. It was built in 1992, so it is 33 years old, younger 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 9,440 vehicles a day, roughly 2% of them trucks, projected to reach 15,104 by 2041. The structure is 105 ft (32 m) long and 64 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesNfa F485 350243S
CrossesCSX Railroad
LocationMelrose Ave@nolensvillerd
RouteCity Street 485
CountyDavidson County
StateTennessee
Coordinates36.12025, -86.7511
Functional classUrban 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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length105 ft (32 m)
Longest span103 ft (31.4 m)
Deck width64 ft (19.5 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,440 (2020)
Projected traffic15,104 by 2041
Trucks2%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed1.9 mi (3 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.8 million (2021 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Nfa F485 350243S over CSX Railroad built?

It was built in 1992, making it 33 years old in 2025.

What condition is Nfa F485 350243S 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 August 2023.

How much traffic does Nfa F485 350243S over CSX Railroad carry?

About 9,440 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa F485 350243S over CSX Railroad?

The structure is 105 ft (32 m) long with a longest span of 103 ft (31.4 m) and a deck 64 ft wide.

Who owns Nfa F485 350243S over CSX Railroad?

It is owned by the City or Municipal Highway Agency.