US Bridges

Nfa A098 over Mcwilliams Creek

Good

Sequatchie County, Tennessee · 1.5 MI East of US 127 · Structure no. 770A0980001

Built
1989
36 years old
Condition
Good
inspected December 2024
Type
Culvert
Concrete Continuous
Length
48 ft
3 main spans
Daily traffic
50
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A098 over Mcwilliams Creek is a concrete continuous culvert carrying Nfa A098 over Mcwilliams Creek in Sequatchie 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 50 vehicles a day, roughly 4% of them trucks, projected to reach 80 by 2039. The structure is 48 ft (14.6 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesNfa A098
CrossesMcwilliams Creek
Location1.5 MI East of US 127
RouteCounty Highway 98
Coordinates35.40024, -85.33939
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating98.2 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length48 ft (14.6 m)
Longest span15 ft (4.6 m)
Deck width26 ft (7.8 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2020)
Projected traffic80 by 2039
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A098 over Mcwilliams Creek built?

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

What condition is Nfa A098 over Mcwilliams 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 December 2024.

How much traffic does Nfa A098 over Mcwilliams Creek carry?

About 50 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is Nfa A098 over Mcwilliams Creek?

The structure is 48 ft (14.6 m) long with a longest span of 15 ft (4.6 m) and a deck 26 ft wide.

Who owns Nfa A098 over Mcwilliams Creek?

It is owned by the County Highway Agency.