US Bridges

Nfa A074 (sa 0920) over Overflow

Fair

Carroll County, Tennessee · 4.4 MI NW JCT SR76&SR105 · Structure no. 090A0740007

Built
1989
36 years old
Condition
Fair
inspected August 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
151 ft
4 main spans
Daily traffic
170
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A074 (sa 0920) over Overflow is a prestressed concrete continuous box beam or girders - single or spread carrying Nfa A074 (sa 0920) over Overflow in Carroll 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 fair condition with a lowest component rating of 6 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 170 vehicles a day, roughly 2% of them trucks, projected to reach 272 by 2039. The structure is 151 ft (46 m) long and 32 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

Location

Open in Google Maps
CarriesNfa A074 (sa 0920)
CrossesOverflow
Location4.4 MI NW JCT SR76&SR105
RouteCounty Highway 74
CountyCarroll County
StateTennessee
Coordinates36.06542, -88.66461
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38.6 US tons
Inventory rating21.8 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length151 ft (46 m)
Longest span43 ft (13.1 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic170 (2020)
Projected traffic272 by 2039
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 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 A074 (sa 0920) over Overflow built?

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

What condition is Nfa A074 (sa 0920) over Overflow 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 August 2023.

How much traffic does Nfa A074 (sa 0920) over Overflow carry?

About 170 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A074 (sa 0920) over Overflow?

The structure is 151 ft (46 m) long with a longest span of 43 ft (13.1 m) and a deck 32 ft wide.

Who owns Nfa A074 (sa 0920) over Overflow?

It is owned by the County Highway Agency.