US Bridges

Nfa 2284 (sa 7206) over Rattan Branch

Fair

Rhea County, Tennessee · 3MI South of SR 30 · Structure no. 72022840001

Built
2009
16 years old
Condition
Fair
inspected October 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
85 ft
1 main span
Daily traffic
670
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa 2284 (sa 7206) over Rattan Branch is a prestressed concrete box beam or girders - single or spread carrying Nfa 2284 (sa 7206) over Rattan Branch in Rhea County, Tennessee. It was built in 2009, so it is 16 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 5 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 670 vehicles a day, roughly 9% of them trucks, projected to reach 1,216 by 2039. The structure is 85 ft (25.8 m) long and 28 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesNfa 2284 (sa 7206)
CrossesRattan Branch
Location3MI South of SR 30
RouteCounty Highway 710
CountyRhea County
StateTennessee
Coordinates35.48058, -84.95679
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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length85 ft (25.8 m)
Longest span85 ft (25.8 m)
Deck width28 ft (8.6 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic670 (2020)
Projected traffic1,216 by 2039
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 2284 (sa 7206) over Rattan Branch built?

It was built in 2009, making it 16 years old in 2025.

What condition is Nfa 2284 (sa 7206) over Rattan Branch 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 October 2024.

How much traffic does Nfa 2284 (sa 7206) over Rattan Branch carry?

About 670 vehicles per day (2020 count), of which roughly 9% are trucks.

How long is Nfa 2284 (sa 7206) over Rattan Branch?

The structure is 85 ft (25.8 m) long with a longest span of 85 ft (25.8 m) and a deck 28 ft wide.

Who owns Nfa 2284 (sa 7206) over Rattan Branch?

It is owned by the County Highway Agency.