US Bridges

Nfa 1280 (sa 0710) over I75

Fair

Campbell County, Tennessee · Exit 3.5 M N of SR63 Exit · Structure no. 07I00750019

Built
1965
60 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
131 ft
2 main spans
Daily traffic
840
2021 count
Owner
State
State Highway Agency

About this bridge

Nfa 1280 (sa 0710) over I75 is a steel continuous stringer/multi-beam or girder carrying Nfa 1280 (sa 0710) over I75 in Campbell County, Tennessee. It was built in 1965, so it is 60 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 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 840 vehicles a day, roughly 3% of them trucks, projected to reach 1,344 by 2042. The structure is 131 ft (39.9 m) long and 34 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesNfa 1280 (sa 0710)
CrossesI75
LocationExit 3.5 M N of SR63 Exit
RouteCounty Highway 1280
CountyCampbell County
StateTennessee
Coordinates36.41675, -84.2824
Functional classRural Minor Collector

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating58.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length131 ft (39.9 m)
Longest span65 ft (19.8 m)
Deck width34 ft (10.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic840 (2021)
Projected traffic1,344 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Nfa 1280 (sa 0710) over I75 built?

It was built in 1965, making it 60 years old in 2025.

What condition is Nfa 1280 (sa 0710) over I75 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 1280 (sa 0710) over I75 carry?

About 840 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 1280 (sa 0710) over I75?

The structure is 131 ft (39.9 m) long with a longest span of 65 ft (19.8 m) and a deck 34 ft wide.

Who owns Nfa 1280 (sa 0710) over I75?

It is owned by the State Highway Agency.