US Bridges

Nfa A170 over North Fork Wolf River

Fair

Fayette County, Tennessee · 1.1 MI NW JCT SR57&SR76 · Structure no. 240A1700007

Built
1997
28 years old
Condition
Fair
inspected September 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
151 ft
3 main spans
Daily traffic
564
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa A170 over North Fork Wolf River is a prestressed concrete continuous box beam or girders - single or spread carrying Nfa A170 over North Fork Wolf River in Fayette County, Tennessee. It was built in 1997, so it is 28 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 564 vehicles a day, roughly 3% of them trucks, projected to reach 912 by 2040. The structure is 151 ft (46 m) long and 30 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

CarriesNfa A170
CrossesNorth Fork Wolf River
Location1.1 MI NW JCT SR57&SR76
RouteCounty Highway 2706
Coordinates35.06942, -89.41264
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.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 rating62.5 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length151 ft (46 m)
Longest span50 ft (15.2 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic564 (2021)
Projected traffic912 by 2040
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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 A170 over North Fork Wolf River built?

It was built in 1997, making it 28 years old in 2025.

What condition is Nfa A170 over North Fork Wolf River 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 2024.

How much traffic does Nfa A170 over North Fork Wolf River carry?

About 564 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa A170 over North Fork Wolf River?

The structure is 151 ft (46 m) long with a longest span of 50 ft (15.2 m) and a deck 30 ft wide.

Who owns Nfa A170 over North Fork Wolf River?

It is owned by the County Highway Agency.