US Bridges

Nfa A499 (sa 4927) over Chambers Branch

Good

Lauderdale County, Tennessee · 1 Mi. W. of SR3 · Structure no. 490A1480003

Built
1986
39 years old
Condition
Good
inspected December 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
100 ft
3 main spans
Daily traffic
180
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A499 (sa 4927) over Chambers Branch is a prestressed concrete continuous box beam or girders - single or spread carrying Nfa A499 (sa 4927) over Chambers Branch in Lauderdale County, Tennessee. It was built in 1986, so it is 39 years old, younger 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.

It carries about 180 vehicles a day, roughly 2% of them trucks, projected to reach 288 by 2042. The structure is 100 ft (30.5 m) long and 30 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

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CarriesNfa A499 (sa 4927)
CrossesChambers Branch
Location1 Mi. W. of SR3
RouteCounty Highway 499
CountyLauderdale County
StateTennessee
Coordinates35.93358, -89.42275
Functional classRural Local

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length100 ft (30.5 m)
Longest span34 ft (10.4 m)
Deck width30 ft (9.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic180 (2020)
Projected traffic288 by 2042
Trucks2%
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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A499 (sa 4927) over Chambers Branch built?

It was built in 1986, making it 39 years old in 2025.

What condition is Nfa A499 (sa 4927) over Chambers Branch 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 December 2023.

How much traffic does Nfa A499 (sa 4927) over Chambers Branch carry?

About 180 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A499 (sa 4927) over Chambers Branch?

The structure is 100 ft (30.5 m) long with a longest span of 34 ft (10.4 m) and a deck 30 ft wide.

Who owns Nfa A499 (sa 4927) over Chambers Branch?

It is owned by the County Highway Agency.