US Bridges

Nfa 2238 (sa 7128) over Mill Creek

Fair

Putnam County, Tennessee · .5 MI South of Overton LN · Structure no. 71022380001

Built
1988
37 years old
Condition
Fair
inspected August 2024
Type
Culvert
Concrete Continuous
Length
48 ft
3 main spans
Daily traffic
354
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 2238 (sa 7128) over Mill Creek is a concrete continuous culvert carrying Nfa 2238 (sa 7128) over Mill Creek in Putnam County, Tennessee. It was built in 1988, so it is 37 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 354 vehicles a day, roughly 3% of them trucks, projected to reach 566 by 2042. The structure is 48 ft (14.6 m) long and 28 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

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CarriesNfa 2238 (sa 7128)
CrossesMill Creek
Location.5 MI South of Overton LN
RouteCounty Highway 2238
CountyPutnam County
StateTennessee
Coordinates36.29514, -85.48055
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 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 alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating98.2 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length48 ft (14.6 m)
Longest span15 ft (4.6 m)
Deck width28 ft (8.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic354 (2021)
Projected traffic566 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 2238 (sa 7128) over Mill Creek built?

It was built in 1988, making it 37 years old in 2025.

What condition is Nfa 2238 (sa 7128) over Mill 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 2238 (sa 7128) over Mill Creek carry?

About 354 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 2238 (sa 7128) over Mill Creek?

The structure is 48 ft (14.6 m) long with a longest span of 15 ft (4.6 m) and a deck 28 ft wide.

Who owns Nfa 2238 (sa 7128) over Mill Creek?

It is owned by the County Highway Agency.