US Bridges

Nfa 1287 (sa 4738) over Roseberry Creek

GoodPosted for load

Knox County, Tennessee · Roberts Rd-N of US11W · Structure no. 47F00250001

Built
1939
86 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
54 ft
1 main span
Daily traffic
2,181
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 1287 (sa 4738) over Roseberry Creek is a steel stringer/multi-beam or girder carrying Nfa 1287 (sa 4738) over Roseberry Creek in Knox County, Tennessee. It was built in 1939, so it is 86 years old, older than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. Its operating status is: posted for load restriction.

It carries about 2,181 vehicles a day, roughly 3% of them trucks, projected to reach 3,968 by 2040. The structure is 54 ft (16.6 m) long and 22 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesNfa 1287 (sa 4738)
CrossesRoseberry Creek
LocationRoberts Rd-N of US11W
RouteCounty Highway 1287
CountyKnox County
StateTennessee
Coordinates36.08312, -83.78574
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating28.8 US tons
Inventory rating16.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length54 ft (16.6 m)
Longest span49 ft (14.9 m)
Deck width22 ft (6.7 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,181 (2021)
Projected traffic3,968 by 2040
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 of existing bridge without deck rehabilitation
Estimated improvement cost$386,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 1287 (sa 4738) over Roseberry Creek built?

It was built in 1939, making it 86 years old in 2025.

What condition is Nfa 1287 (sa 4738) over Roseberry Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2024.

How much traffic does Nfa 1287 (sa 4738) over Roseberry Creek carry?

About 2,181 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 1287 (sa 4738) over Roseberry Creek?

The structure is 54 ft (16.6 m) long with a longest span of 49 ft (14.9 m) and a deck 22 ft wide.

Who owns Nfa 1287 (sa 4738) over Roseberry Creek?

It is owned by the County Highway Agency.