US Bridges

Nfa 1679 over Overflow

FairPosted for load

Chester County, Tennessee · 2.7 MI South of SR100 · Structure no. 12016790009

Built
1955
70 years old
Condition
Fair
inspected June 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
60 ft
4 main spans
Daily traffic
929
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 1679 over Overflow is a prestressed concrete box beam or girders - multiple carrying Nfa 1679 over Overflow in Chester County, Tennessee. It was built in 1955, so it is 70 years old, older 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. Its operating status is: posted for load restriction.

It carries about 929 vehicles a day, roughly 3% of them trucks, projected to reach 1,486 by 2042. The structure is 60 ft (18.3 m) long and 21 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesNfa 1679
CrossesOverflow
Location2.7 MI South of SR100
RouteCounty Highway 1679
CountyChester County
StateTennessee
Coordinates35.41183, -88.5917
Functional classRural Minor Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.7 US tons
Inventory rating26.8 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckOther
Main spans4
Design loadHS 15
Structure length60 ft (18.3 m)
Longest span15 ft (4.6 m)
Deck width21 ft (6.4 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic929 (2021)
Projected traffic1,486 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$770,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 1679 over Overflow built?

It was built in 1955, making it 70 years old in 2025.

What condition is Nfa 1679 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 June 2023.

How much traffic does Nfa 1679 over Overflow carry?

About 929 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 1679 over Overflow?

The structure is 60 ft (18.3 m) long with a longest span of 15 ft (4.6 m) and a deck 21 ft wide.

Who owns Nfa 1679 over Overflow?

It is owned by the County Highway Agency.