US Bridges

Nfa A557 877326P over CSX Railroad

Fair

Benton County, Tennessee · 1.0 MI SW JCT SR1&SR69 · Structure no. 030A4590001

Built
1975
50 years old
Condition
Fair
inspected February 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
141 ft
3 main spans
Daily traffic
900
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A557 877326P over CSX Railroad is a prestressed concrete continuous box beam or girders - single or spread carrying Nfa A557 877326P over CSX Railroad in Benton County, Tennessee. It was built in 1975, so it is 50 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 900 vehicles a day, roughly 4% of them trucks, projected to reach 1,440 by 2042. The structure is 141 ft (43 m) long and 38 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesNfa A557 877326P
CrossesCSX Railroad
Location1.0 MI SW JCT SR1&SR69
RouteCounty Highway 557
CountyBenton County
StateTennessee
Coordinates36.04716, -88.12945
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length141 ft (43 m)
Longest span47 ft (14.3 m)
Deck width38 ft (11.6 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic900 (2020)
Projected traffic1,440 by 2042
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed5 mi (8 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 A557 877326P over CSX Railroad built?

It was built in 1975, making it 50 years old in 2025.

What condition is Nfa A557 877326P 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 February 2024.

How much traffic does Nfa A557 877326P over CSX Railroad carry?

About 900 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is Nfa A557 877326P over CSX Railroad?

The structure is 141 ft (43 m) long with a longest span of 47 ft (14.3 m) and a deck 38 ft wide.

Who owns Nfa A557 877326P over CSX Railroad?

It is owned by the County Highway Agency.