US Bridges

Nfa A499 over Branch

Good

Blount County, Tennessee · 3 M SE of SR115-SR33 JCT · Structure no. 050A4990001

Built
1988
37 years old
Condition
Good
inspected December 2023
Type
Culvert
Concrete Continuous
Length
26 ft
2 main spans
Daily traffic
1,680
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A499 over Branch is a concrete continuous culvert carrying Nfa A499 over Branch in Blount County, Tennessee. It was built in 1988, so it is 37 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 1,680 vehicles a day, roughly 2% of them trucks, projected to reach 2,688 by 2042. The structure is 26 ft (7.9 m) long and 26 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesNfa A499
CrossesBranch
Location3 M SE of SR115-SR33 JCT
RouteCounty Highway 499
CountyBlount County
StateTennessee
Coordinates35.66072, -84.00132
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
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 rating74.3 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span12 ft (3.7 m)
Deck width26 ft (8 m)
Roadway width21 ft (6.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,680 (2020)
Projected traffic2,688 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$230,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A499 over Branch built?

It was built in 1988, making it 37 years old in 2025.

What condition is Nfa A499 over 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 over Branch carry?

About 1,680 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A499 over Branch?

The structure is 26 ft (7.9 m) long with a longest span of 12 ft (3.7 m) and a deck 26 ft wide.

Who owns Nfa A499 over Branch?

It is owned by the County Highway Agency.