US Bridges

Nfa 2430 (sa 4726) over Roseberry Creek

Fair

Knox County, Tennessee · Millertown Pk-W Off US11W · Structure no. 47024300003

Built
1965
60 years old
Condition
Fair
inspected June 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
45 ft
1 main span
Daily traffic
1,295
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 2430 (sa 4726) over Roseberry Creek is a prestressed concrete box beam or girders - multiple carrying Nfa 2430 (sa 4726) over Roseberry Creek in Knox 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 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 1,295 vehicles a day, roughly 4% of them trucks, projected to reach 2,240 by 2040. The structure is 45 ft (13.8 m) long and 27 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesNfa 2430 (sa 4726)
CrossesRoseberry Creek
LocationMillertown Pk-W Off US11W
RouteCounty Highway 2430
CountyKnox County
StateTennessee
Coordinates36.08252, -83.77593
Functional classUrban Minor Arterial

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 inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
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 - Multiple
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadUnknown
Structure length45 ft (13.8 m)
Longest span42 ft (12.8 m)
Deck width27 ft (8.3 m)
Roadway width25 ft (7.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,295 (2021)
Projected traffic2,240 by 2040
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 2430 (sa 4726) over Roseberry Creek built?

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

What condition is Nfa 2430 (sa 4726) over Roseberry 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 June 2024.

How much traffic does Nfa 2430 (sa 4726) over Roseberry Creek carry?

About 1,295 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is Nfa 2430 (sa 4726) over Roseberry Creek?

The structure is 45 ft (13.8 m) long with a longest span of 42 ft (12.8 m) and a deck 27 ft wide.

Who owns Nfa 2430 (sa 4726) over Roseberry Creek?

It is owned by the County Highway Agency.