US Bridges

Nfa 1506 over Spring Creek

Fair

Overton County, Tennessee · 1.3 MI N of Putnam CO · Structure no. 67SR0420001

Built
1924
101 years old, rebuilt 1987
Condition
Fair
inspected December 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
84 ft
2 main spans
Daily traffic
886
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 1506 over Spring Creek is a prestressed concrete continuous box beam or girders - single or spread carrying Nfa 1506 over Spring Creek in Overton County, Tennessee. It was built in 1924 and reconstructed in 1987, so it is 101 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 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 886 vehicles a day, roughly 3% of them trucks, projected to reach 1,552 by 2041. The structure is 84 ft (25.6 m) long and 36 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesNfa 1506
CrossesSpring Creek
Location1.3 MI N of Putnam CO
RouteCounty Highway 1506
CountyOverton County
StateTennessee
Coordinates36.24625, -85.3872
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans2
Design loadHS 20
Structure length84 ft (25.6 m)
Longest span51 ft (15.5 m)
Deck width36 ft (11.1 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic886 (2021)
Projected traffic1,552 by 2041
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 1506 over Spring Creek built?

It was built in 1924, making it 101 years old in 2025. It was reconstructed in 1987.

What condition is Nfa 1506 over Spring 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 December 2024.

How much traffic does Nfa 1506 over Spring Creek carry?

About 886 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 1506 over Spring Creek?

The structure is 84 ft (25.6 m) long with a longest span of 51 ft (15.5 m) and a deck 36 ft wide.

Who owns Nfa 1506 over Spring Creek?

It is owned by the County Highway Agency.