US Bridges

Nfa A518 over Steele Creek

Good

Sullivan County, Tennessee · 1MI North of SR126 · Structure no. 820A5180001

Built
1989
36 years old
Condition
Good
inspected January 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
35 ft
1 main span
Daily traffic
911
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa A518 over Steele Creek is a prestressed concrete box beam or girders - single or spread carrying Nfa A518 over Steele Creek in Sullivan County, Tennessee. It was built in 1989, so it is 36 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 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 911 vehicles a day, roughly 13% of them trucks, projected to reach 1,632 by 2041. The structure is 35 ft (10.7 m) long and 28 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesNfa A518
CrossesSteele Creek
Location1MI North of SR126
RouteCity Street 518
Coordinates36.58798, -82.23172
Functional classUrban Local

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating30.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length35 ft (10.7 m)
Longest span32 ft (9.8 m)
Deck width28 ft (8.5 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic911 (2021)
Projected traffic1,632 by 2041
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A518 over Steele Creek built?

It was built in 1989, making it 36 years old in 2025.

What condition is Nfa A518 over Steele 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 January 2024.

How much traffic does Nfa A518 over Steele Creek carry?

About 911 vehicles per day (2021 count), of which roughly 13% are trucks.

How long is Nfa A518 over Steele Creek?

The structure is 35 ft (10.7 m) long with a longest span of 32 ft (9.8 m) and a deck 28 ft wide.

Who owns Nfa A518 over Steele Creek?

It is owned by the City or Municipal Highway Agency.