US Bridges

Nfa E066 over Southern Railway

Fair

Hamilton County, Tennessee · .3 MI East of I75 · Structure no. 330E0660001

Built
1987
38 years old
Condition
Fair
inspected February 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
171 ft
3 main spans
Daily traffic
60
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa E066 over Southern Railway is a prestressed concrete continuous box beam or girders - single or spread carrying Nfa E066 over Southern Railway in Hamilton County, Tennessee. It was built in 1987, so it is 38 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 60 vehicles a day, roughly 2% of them trucks, projected to reach 96 by 2042. The structure is 171 ft (52.1 m) long and 26 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesNfa E066
CrossesSouthern Railway
Location.3 MI East of I75
RouteCounty Highway 66
CountyHamilton County
StateTennessee
Coordinates35.0711, -85.10776
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.
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating49.3 US tons
Inventory rating31.4 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length171 ft (52.1 m)
Longest span70 ft (21.2 m)
Deck width26 ft (7.9 m)
Roadway width23 ft (6.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60 (2020)
Projected traffic96 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed123.7 mi (199 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 E066 over Southern Railway built?

It was built in 1987, making it 38 years old in 2025.

What condition is Nfa E066 over Southern Railway 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 E066 over Southern Railway carry?

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

How long is Nfa E066 over Southern Railway?

The structure is 171 ft (52.1 m) long with a longest span of 70 ft (21.2 m) and a deck 26 ft wide.

Who owns Nfa E066 over Southern Railway?

It is owned by the City or Municipal Highway Agency.