US Bridges

Nfa 1560 over Middle Fork Obion River

Fair

Weakley County, Tennessee · 1.6 MI N of SR22 · Structure no. 920A2720007

Built
2004
21 years old
Condition
Fair
inspected September 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
85 ft
1 main span
Daily traffic
198
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 1560 over Middle Fork Obion River is a prestressed concrete box beam or girders - single or spread carrying Nfa 1560 over Middle Fork Obion River in Weakley County, Tennessee. It was built in 2004, so it is 21 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 198 vehicles a day, roughly 3% of them trucks, projected to reach 240 by 2040. The structure is 85 ft (25.9 m) long and 31 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesNfa 1560
CrossesMiddle Fork Obion River
Location1.6 MI N of SR22
RouteCounty Highway 1560
Coordinates36.25758, -88.60972
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.
Substructure7 GoodSome minor problems.
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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating86.1 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20 + Mod
Structure length85 ft (25.9 m)
Longest span85 ft (25.9 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic198 (2021)
Projected traffic240 by 2040
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 1560 over Middle Fork Obion River built?

It was built in 2004, making it 21 years old in 2025.

What condition is Nfa 1560 over Middle Fork Obion 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 1560 over Middle Fork Obion River carry?

About 198 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 1560 over Middle Fork Obion River?

The structure is 85 ft (25.9 m) long with a longest span of 85 ft (25.9 m) and a deck 31 ft wide.

Who owns Nfa 1560 over Middle Fork Obion River?

It is owned by the County Highway Agency.