US Bridges

Nfa 1278 over CSX Railroad

Good

Campbell County, Tennessee · .2 M SE of Jacksboro · Structure no. 07S24480005

Built
2002
23 years old
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
179 ft
3 main spans
Daily traffic
4,568
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 1278 over CSX Railroad is a prestressed concrete continuous stringer/multi-beam or girder carrying Nfa 1278 over CSX Railroad in Campbell County, Tennessee. It was built in 2002, so it is 23 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 4,568 vehicles a day, roughly 1% of them trucks, projected to reach 7,309 by 2042. The structure is 179 ft (54.7 m) long and 43 ft wide. If it were closed, the detour would be 51 mi (82 km).

CarriesNfa 1278
CrossesCSX Railroad
Location.2 M SE of Jacksboro
RouteCounty Highway 1278
Coordinates36.32647, -84.17471
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Last inspectionApril 2024
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 alignment6: Equal to present minimum criteria
Operating rating73.5 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length179 ft (54.7 m)
Longest span86 ft (26.1 m)
Deck width43 ft (13.1 m)
Roadway width39 ft (11.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,568 (2021)
Projected traffic7,309 by 2042
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed51 mi (82 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 1278 over CSX Railroad built?

It was built in 2002, making it 23 years old in 2025.

What condition is Nfa 1278 over CSX Railroad 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 April 2024.

How much traffic does Nfa 1278 over CSX Railroad carry?

About 4,568 vehicles per day (2021 count), of which roughly 1% are trucks.

How long is Nfa 1278 over CSX Railroad?

The structure is 179 ft (54.7 m) long with a longest span of 86 ft (26.1 m) and a deck 43 ft wide.

Who owns Nfa 1278 over CSX Railroad?

It is owned by the County Highway Agency.