US Bridges

FAU 8 Sbl over I75

Fair

Hamilton County, Tennessee · 1 MI N of Ga State Line · Structure no. 33I00750004

Built
1959
66 years old
Condition
Fair
inspected July 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
212 ft
4 main spans
Daily traffic
27,638
2021 count
Owner
State
State Highway Agency

About this bridge

FAU 8 Sbl over I75 is a prestressed concrete box beam or girders - multiple carrying FAU 8 Sbl over I75 in Hamilton County, Tennessee. It was built in 1959, so it is 66 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 27,638 vehicles a day, roughly 7% of them trucks, projected to reach 43,040 by 2040. The structure is 212 ft (64.6 m) long and 47 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesFAU 8 Sbl
CrossesI75
Location1 MI N of Ga State Line
RouteU.S. Route 41
CountyHamilton County
StateTennessee
Coordinates34.98995, -85.20347
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 inspectionJuly 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 geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.2 US tons
Inventory rating30.3 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckOther
Main spans4
Design loadHS 20
Structure length212 ft (64.6 m)
Longest span79 ft (24.2 m)
Deck width47 ft (14.3 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic27,638 (2021)
Projected traffic43,040 by 2040
Trucks7%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$791,000 (2020 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was FAU 8 Sbl over I75 built?

It was built in 1959, making it 66 years old in 2025.

What condition is FAU 8 Sbl 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 July 2024.

How much traffic does FAU 8 Sbl over I75 carry?

About 27,638 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is FAU 8 Sbl over I75?

The structure is 212 ft (64.6 m) long with a longest span of 79 ft (24.2 m) and a deck 47 ft wide.

Who owns FAU 8 Sbl over I75?

It is owned by the State Highway Agency.