US Bridges

Nfa A612 over North Mouse Creek

Fair

McMinn County, Tennessee · 2 MI from I75 · Structure no. 540A6120003

Built
1994
31 years old
Condition
Fair
inspected September 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
103 ft
1 main span
Daily traffic
240
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A612 over North Mouse Creek is a prestressed concrete box beam or girders - single or spread carrying Nfa A612 over North Mouse Creek in McMinn County, Tennessee. It was built in 1994, so it is 31 years old, younger than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 240 vehicles a day, roughly 2% of them trucks, projected to reach 384 by 2042. The structure is 103 ft (31.4 m) long and 24 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesNfa A612
CrossesNorth Mouse Creek
Location2 MI from I75
RouteCounty Highway 612
Coordinates35.51257, -84.5912
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating56.8 US tons
Inventory rating42.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length103 ft (31.4 m)
Longest span83 ft (25.3 m)
Deck width24 ft (7.4 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic240 (2020)
Projected traffic384 by 2042
Trucks2%
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 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 A612 over North Mouse Creek built?

It was built in 1994, making it 31 years old in 2025.

What condition is Nfa A612 over North Mouse Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2023.

How much traffic does Nfa A612 over North Mouse Creek carry?

About 240 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A612 over North Mouse Creek?

The structure is 103 ft (31.4 m) long with a longest span of 83 ft (25.3 m) and a deck 24 ft wide.

Who owns Nfa A612 over North Mouse Creek?

It is owned by the County Highway Agency.