US Bridges

Nfa E385 over Williams Creek

Good

Knox County, Tennessee · Just SW of SR170-I75 Jct. · Structure no. 470E3850001

Built
1974
51 years old
Condition
Good
inspected June 2024
Type
Channel Beam
Concrete
Length
26 ft
1 main span
Daily traffic
340
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa E385 over Williams Creek is a concrete channel beam carrying Nfa E385 over Williams Creek in Knox County, Tennessee. It was built in 1974, so it is 51 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 340 vehicles a day, roughly 2% of them trucks, projected to reach 544 by 2040. The structure is 26 ft (7.9 m) long and 21 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesNfa E385
CrossesWilliams Creek
LocationJust SW of SR170-I75 Jct.
RouteCity Street 385
Coordinates36.09903, -84.02183
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 inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to 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 length26 ft (7.9 m)
Longest span23 ft (7.1 m)
Deck width21 ft (6.5 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic340 (2020)
Projected traffic544 by 2040
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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$110,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa E385 over Williams Creek built?

It was built in 1974, making it 51 years old in 2025.

What condition is Nfa E385 over Williams 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 June 2024.

How much traffic does Nfa E385 over Williams Creek carry?

About 340 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa E385 over Williams Creek?

The structure is 26 ft (7.9 m) long with a longest span of 23 ft (7.1 m) and a deck 21 ft wide.

Who owns Nfa E385 over Williams Creek?

It is owned by the County Highway Agency.