US Bridges

FAU 4830 over Inskip Rd. / I75

Fair

Knox County, Tennessee · .8 M N of Sharps Gap · Structure no. 47I00750031

Built
1969
56 years old
Condition
Fair
inspected January 2025
Type
Tee Beam
Concrete Continuous
Length
219 ft
4 main spans
Daily traffic
6,735
2021 count
Owner
State
State Highway Agency

About this bridge

FAU 4830 over Inskip Rd. / I75 is a concrete continuous tee beam carrying FAU 4830 over Inskip Rd. / I75 in Knox County, Tennessee. It was built in 1969, so it is 56 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 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 6,735 vehicles a day, roughly 1% of them trucks, projected to reach 10,128 by 2041. The structure is 219 ft (66.6 m) long and 40 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesFAU 4830
CrossesInskip Rd. / I75
Location.8 M N of Sharps Gap
RouteCity Street 4830
CountyKnox County
StateTennessee
Coordinates36.00697, -83.96788
Functional classUrban 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38.6 US tons
Inventory rating27.4 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length219 ft (66.6 m)
Longest span64 ft (19.5 m)
Deck width40 ft (12.3 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,735 (2021)
Projected traffic10,128 by 2041
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$500,000 (2021 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was FAU 4830 over Inskip Rd. / I75 built?

It was built in 1969, making it 56 years old in 2025.

What condition is FAU 4830 over Inskip Rd. / 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 January 2025.

How much traffic does FAU 4830 over Inskip Rd. / I75 carry?

About 6,735 vehicles per day (2021 count), of which roughly 1% are trucks.

How long is FAU 4830 over Inskip Rd. / I75?

The structure is 219 ft (66.6 m) long with a longest span of 64 ft (19.5 m) and a deck 40 ft wide.

Who owns FAU 4830 over Inskip Rd. / I75?

It is owned by the State Highway Agency.