US Bridges

Nfa 1437 (sa 6604) over Clover Creek

Fair

Obion County, Tennessee · 6 MI E of Lake Co. · Structure no. 66S80050005

Built
1997
28 years old
Condition
Fair
inspected March 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
75 ft
1 main span
Daily traffic
587
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 1437 (sa 6604) over Clover Creek is a prestressed concrete box beam or girders - single or spread carrying Nfa 1437 (sa 6604) over Clover Creek in Obion 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 587 vehicles a day, roughly 3% of them trucks, projected to reach 816 by 2039. The structure is 75 ft (22.9 m) long and 31 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesNfa 1437 (sa 6604)
CrossesClover Creek
Location6 MI E of Lake Co.
RouteCounty Highway 1437
CountyObion County
StateTennessee
Coordinates36.26447, -89.30522
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 inspectionMarch 2023
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 rating46.7 US tons
Inventory rating27.9 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length75 ft (22.9 m)
Longest span75 ft (22.9 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic587 (2021)
Projected traffic816 by 2039
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 1437 (sa 6604) over Clover Creek built?

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

What condition is Nfa 1437 (sa 6604) over Clover 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 March 2023.

How much traffic does Nfa 1437 (sa 6604) over Clover Creek carry?

About 587 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 1437 (sa 6604) over Clover Creek?

The structure is 75 ft (22.9 m) long with a longest span of 75 ft (22.9 m) and a deck 31 ft wide.

Who owns Nfa 1437 (sa 6604) over Clover Creek?

It is owned by the County Highway Agency.