US Bridges

Nfa 4690 over Tuckahoe Creek

Good

Sevier County, Tennessee · 1.0 M N of I40 at Knox C · Structure no. 78046900001

Built
2018
7 years old
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Concrete
Length
45 ft
1 main span
Daily traffic
5,587
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 4690 over Tuckahoe Creek is a concrete stringer/multi-beam or girder carrying Nfa 4690 over Tuckahoe Creek in Sevier County, Tennessee. It was built in 2018, so it is 7 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 5,587 vehicles a day, roughly 3% of them trucks, projected to reach 8,755 by 2041. The structure is 45 ft (13.7 m) long and 33 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesNfa 4690
CrossesTuckahoe Creek
Location1.0 M N of I40 at Knox C
RouteCounty Highway 4690
Coordinates35.99342, -83.61142
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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length45 ft (13.7 m)
Longest span42 ft (12.8 m)
Deck width33 ft (10.1 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,587 (2021)
Projected traffic8,755 by 2041
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$230,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 4690 over Tuckahoe Creek built?

It was built in 2018, making it 7 years old in 2025.

What condition is Nfa 4690 over Tuckahoe Creek 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 July 2023.

How much traffic does Nfa 4690 over Tuckahoe Creek carry?

About 5,587 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 4690 over Tuckahoe Creek?

The structure is 45 ft (13.7 m) long with a longest span of 42 ft (12.8 m) and a deck 33 ft wide.

Who owns Nfa 4690 over Tuckahoe Creek?

It is owned by the County Highway Agency.