US Bridges

Nfa D718 over Tuckahoe Creek

Good

Knox County, Tennessee · Smith Sch Rd-Near Midway · Structure no. 470D7180003

Built
1965
60 years old
Condition
Good
inspected March 2024
Type
Channel Beam
Concrete
Length
40 ft
1 main span
Daily traffic
120
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa D718 over Tuckahoe Creek is a concrete channel beam carrying Nfa D718 over Tuckahoe Creek in Knox 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 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 120 vehicles a day, roughly 2% of them trucks, projected to reach 192 by 2042. The structure is 40 ft (12.2 m) long and 21 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesNfa D718
CrossesTuckahoe Creek
LocationSmith Sch Rd-Near Midway
RouteCounty Highway 718
CountyKnox County
StateTennessee
Coordinates35.9696, -83.69662
Functional classRural Local

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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.7 US tons
Inventory rating26.8 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadUnknown
Structure length40 ft (12.2 m)
Longest span38 ft (11.6 m)
Deck width21 ft (6.4 m)
Roadway width19 ft (5.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic120 (2020)
Projected traffic192 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$161,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa D718 over Tuckahoe Creek built?

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

What condition is Nfa D718 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 March 2024.

How much traffic does Nfa D718 over Tuckahoe Creek carry?

About 120 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa D718 over Tuckahoe Creek?

The structure is 40 ft (12.2 m) long with a longest span of 38 ft (11.6 m) and a deck 21 ft wide.

Who owns Nfa D718 over Tuckahoe Creek?

It is owned by the County Highway Agency.