US Bridges

Nfa B218 over Slaters Creek

Good

Sumner County, Tennessee · 2.5 MI N JCT SR11 & SR41 · Structure no. 830B2180001

Built
1985
40 years old
Condition
Good
inspected February 2025
Type
Culvert
Concrete Continuous
Length
67 ft
3 main spans
Daily traffic
2,508
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa B218 over Slaters Creek is a concrete continuous culvert carrying Nfa B218 over Slaters Creek in Sumner County, Tennessee. It was built in 1985, so it is 40 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 2,508 vehicles a day, roughly 3% of them trucks, projected to reach 3,406 by 2041. The structure is 67 ft (20.4 m) long and 29 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesNfa B218
CrossesSlaters Creek
Location2.5 MI N JCT SR11 & SR41
RouteCity Street 5433
Coordinates36.381, -86.71323
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.7 US tons
Inventory rating28.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length67 ft (20.4 m)
Longest span18 ft (5.5 m)
Deck width29 ft (8.7 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,508 (2021)
Projected traffic3,406 by 2041
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$313,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa B218 over Slaters Creek built?

It was built in 1985, making it 40 years old in 2025.

What condition is Nfa B218 over Slaters 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 February 2025.

How much traffic does Nfa B218 over Slaters Creek carry?

About 2,508 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa B218 over Slaters Creek?

The structure is 67 ft (20.4 m) long with a longest span of 18 ft (5.5 m) and a deck 29 ft wide.

Who owns Nfa B218 over Slaters Creek?

It is owned by the City or Municipal Highway Agency.