US Bridges

I75 Sbl over Nfa 2327

Good

McMinn County, Tennessee · 16.3 Mi. from Bradley Co. · Structure no. 54I00750026

Built
1971
54 years old
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
183 ft
3 main spans
Daily traffic
41,537
2021 count
Owner
State
State Highway Agency

About this bridge

I75 Sbl over Nfa 2327 is a prestressed concrete continuous stringer/multi-beam or girder carrying I75 Sbl over Nfa 2327 in McMinn County, Tennessee. It was built in 1971, so it is 54 years old, older 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 41,537 vehicles a day, roughly 7% of them trucks, projected to reach 66,459 by 2042. The structure is 183 ft (55.8 m) long and 44 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI75 Sbl
CrossesNfa 2327
Location16.3 Mi. from Bradley Co.
RouteInterstate 75
Coordinates35.49453, -84.62042
Functional classRural Principal Arterial - Interstate

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionApril 2024
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 geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.6 US tons
Inventory rating25.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length183 ft (55.8 m)
Longest span78 ft (23.8 m)
Deck width44 ft (13.4 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic41,537 (2021)
Projected traffic66,459 by 2042
Trucks7%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 I75 Sbl over Nfa 2327 built?

It was built in 1971, making it 54 years old in 2025.

What condition is I75 Sbl over Nfa 2327 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 I75 Sbl over Nfa 2327 carry?

About 41,537 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is I75 Sbl over Nfa 2327?

The structure is 183 ft (55.8 m) long with a longest span of 78 ft (23.8 m) and a deck 44 ft wide.

Who owns I75 Sbl over Nfa 2327?

It is owned by the State Highway Agency.