US Bridges

Nfa C180 over Laurel Bank Branch

Good

Blount County, Tennessee · 2 M. W. Maryville. · Structure no. 050C1200001

Built
2004
21 years old
Condition
Good
inspected November 2023
Type
Culvert
Concrete
Length
22 ft
3 main spans
Daily traffic
50
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa C180 over Laurel Bank Branch is a concrete culvert carrying Nfa C180 over Laurel Bank Branch in Blount County, Tennessee. It was built in 2004, so it is 21 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 6% of them trucks, projected to reach 80 by 2042. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 123.7 mi (199 km).

CarriesNfa C180
CrossesLaurel Bank Branch
Location2 M. W. Maryville.
RouteCounty Highway 180
Coordinates35.74217, -84.02403
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 15
Structure length22 ft (6.7 m)
Longest span7 ft (2.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2020)
Projected traffic80 by 2042
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 C180 over Laurel Bank Branch built?

It was built in 2004, making it 21 years old in 2025.

What condition is Nfa C180 over Laurel Bank Branch 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 November 2023.

How much traffic does Nfa C180 over Laurel Bank Branch carry?

About 50 vehicles per day (2020 count), of which roughly 6% are trucks.

How long is Nfa C180 over Laurel Bank Branch?

The structure is 22 ft (6.7 m) long with a longest span of 7 ft (2.1 m).

Who owns Nfa C180 over Laurel Bank Branch?

It is owned by the County Highway Agency.