US Bridges

Nfa 2453 (sa 4508) over Mill Spring Creek

Fair

Jefferson County, Tennessee · W of SR92-NEAR Grainger C · Structure no. 45024530007

Built
1995
30 years old
Condition
Fair
inspected May 2023
Type
Culvert
Concrete Continuous
Length
37 ft
2 main spans
Daily traffic
1,037
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 2453 (sa 4508) over Mill Spring Creek is a concrete continuous culvert carrying Nfa 2453 (sa 4508) over Mill Spring Creek in Jefferson County, Tennessee. It was built in 1995, so it is 30 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 1,037 vehicles a day, roughly 3% of them trucks, projected to reach 1,792 by 2041. The structure is 37 ft (11.4 m) long and 37 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

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CarriesNfa 2453 (sa 4508)
CrossesMill Spring Creek
LocationW of SR92-NEAR Grainger C
RouteCounty Highway 2453
CountyJefferson County
StateTennessee
Coordinates36.1664, -83.52593
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 inspectionMay 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 alignment6: Equal to present minimum criteria
Operating rating98.2 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length37 ft (11.4 m)
Longest span17 ft (5.3 m)
Deck width37 ft (11.4 m)
Roadway width31 ft (9.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,037 (2021)
Projected traffic1,792 by 2041
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 2453 (sa 4508) over Mill Spring Creek built?

It was built in 1995, making it 30 years old in 2025.

What condition is Nfa 2453 (sa 4508) over Mill 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 May 2023.

How much traffic does Nfa 2453 (sa 4508) over Mill Spring Creek carry?

About 1,037 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 2453 (sa 4508) over Mill Spring Creek?

The structure is 37 ft (11.4 m) long with a longest span of 17 ft (5.3 m) and a deck 37 ft wide.

Who owns Nfa 2453 (sa 4508) over Mill Spring Creek?

It is owned by the County Highway Agency.