US Bridges

Nfa A482 348129S over CSX Railroad

Fair

Robertson County, Tennessee · 2.5 MI W JCT SR11&SR49 · Structure no. 740A4820001

Built
1990
35 years old
Condition
Fair
inspected May 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
137 ft
3 main spans
Daily traffic
410
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A482 348129S over CSX Railroad is a prestressed concrete continuous box beam or girders - single or spread carrying Nfa A482 348129S over CSX Railroad in Robertson County, Tennessee. It was built in 1990, so it is 35 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 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 410 vehicles a day, roughly 2% of them trucks, projected to reach 656 by 2040. The structure is 137 ft (41.8 m) long and 26 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesNfa A482 348129S
CrossesCSX Railroad
Location2.5 MI W JCT SR11&SR49
RouteCounty Highway 0A482
CountyRobertson County
StateTennessee
Coordinates36.5184, -86.9226
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMay 2024
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 rating64.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length137 ft (41.8 m)
Longest span53 ft (16.2 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic410 (2020)
Projected traffic656 by 2040
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 A482 348129S over CSX Railroad built?

It was built in 1990, making it 35 years old in 2025.

What condition is Nfa A482 348129S 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 May 2024.

How much traffic does Nfa A482 348129S over CSX Railroad carry?

About 410 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A482 348129S over CSX Railroad?

The structure is 137 ft (41.8 m) long with a longest span of 53 ft (16.2 m) and a deck 26 ft wide.

Who owns Nfa A482 348129S over CSX Railroad?

It is owned by the County Highway Agency.