US Bridges

Nfa B102 (sa 3512) over Oak Dane Creek

FairPosted for load

Hardeman County, Tennessee · 3 MI S of SR15 · Structure no. 350A0430003

Built
1965
60 years old
Condition
Fair
inspected August 2024
Type
Channel Beam
Concrete
Length
34 ft
2 main spans
Daily traffic
760
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa B102 (sa 3512) over Oak Dane Creek is a concrete channel beam carrying Nfa B102 (sa 3512) over Oak Dane Creek in Hardeman County, Tennessee. It was built in 1965, so it is 60 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 760 vehicles a day, roughly 5% of them trucks, projected to reach 1,216 by 2042. The structure is 34 ft (10.4 m) long and 26 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

Location

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CarriesNfa B102 (sa 3512)
CrossesOak Dane Creek
Location3 MI S of SR15
RouteCounty Highway 102
CountyHardeman County
StateTennessee
Coordinates35.24783, -89.12531
Functional classRural Local

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating32.5 US tons
Inventory rating25.4 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans2
Design loadH 15
Structure length34 ft (10.4 m)
Longest span17 ft (5.2 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic760 (2020)
Projected traffic1,216 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$125,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa B102 (sa 3512) over Oak Dane Creek built?

It was built in 1965, making it 60 years old in 2025.

What condition is Nfa B102 (sa 3512) over Oak Dane 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 August 2024.

How much traffic does Nfa B102 (sa 3512) over Oak Dane Creek carry?

About 760 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Nfa B102 (sa 3512) over Oak Dane Creek?

The structure is 34 ft (10.4 m) long with a longest span of 17 ft (5.2 m) and a deck 26 ft wide.

Who owns Nfa B102 (sa 3512) over Oak Dane Creek?

It is owned by the County Highway Agency.