US Bridges

Nfa 858 over North Mouse Creek

Good

McMinn County, Tennessee · Near Athens Tn. · Structure no. 54S43210001

Built
1986
39 years old
Condition
Good
inspected July 2023
Type
Culvert
Concrete Continuous
Length
50 ft
3 main spans
Daily traffic
877
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 858 over North Mouse Creek is a concrete continuous culvert carrying Nfa 858 over North Mouse Creek in McMinn County, Tennessee. It was built in 1986, so it is 39 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 877 vehicles a day, roughly 3% of them trucks, projected to reach 1,349 by 2041. The structure is 50 ft (15.2 m) long and 31 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesNfa 858
CrossesNorth Mouse Creek
LocationNear Athens Tn.
RouteCounty Highway 858
Coordinates35.47331, -84.62446
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 inspectionJuly 2023
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 rating98.2 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length50 ft (15.2 m)
Longest span15 ft (4.6 m)
Deck width31 ft (9.6 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic877 (2021)
Projected traffic1,349 by 2041
Trucks3%
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

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 858 over North Mouse Creek built?

It was built in 1986, making it 39 years old in 2025.

What condition is Nfa 858 over North Mouse 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 2023.

How much traffic does Nfa 858 over North Mouse Creek carry?

About 877 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 858 over North Mouse Creek?

The structure is 50 ft (15.2 m) long with a longest span of 15 ft (4.6 m) and a deck 31 ft wide.

Who owns Nfa 858 over North Mouse Creek?

It is owned by the County Highway Agency.