US Bridges

Nfa A181 over Island Creek

Good

Monroe County, Tennessee · N Off US411-W of Vonroe · Structure no. 620A1810001

Built
1992
33 years old
Condition
Good
inspected July 2024
Type
Culvert
Concrete Continuous
Length
33 ft
2 main spans
Daily traffic
500
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa A181 over Island Creek is a concrete continuous culvert carrying Nfa A181 over Island Creek in Monroe County, Tennessee. It was built in 1992, so it is 33 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 500 vehicles a day, roughly 2% of them trucks, projected to reach 800 by 2040. The structure is 33 ft (10.1 m) long and 31 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesNfa A181
CrossesIsland Creek
LocationN Off US411-W of Vonroe
RouteCity Street 181
Coordinates35.58218, -84.26923
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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJuly 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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length33 ft (10.1 m)
Longest span15 ft (4.6 m)
Deck width31 ft (9.4 m)
Roadway width29 ft (8.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2020)
Projected traffic800 by 2040
Trucks2%
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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A181 over Island Creek built?

It was built in 1992, making it 33 years old in 2025.

What condition is Nfa A181 over Island 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 July 2024.

How much traffic does Nfa A181 over Island Creek carry?

About 500 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A181 over Island Creek?

The structure is 33 ft (10.1 m) long with a longest span of 15 ft (4.6 m) and a deck 31 ft wide.

Who owns Nfa A181 over Island Creek?

It is owned by the City or Municipal Highway Agency.