US Bridges

FAP 33 over Byrd Branch

Fair

Loudon County, Tennessee · 1.4 M N of Greenback · Structure no. 53SR0330003

Built
1999
26 years old
Condition
Fair
inspected February 2023
Type
Culvert
Concrete Continuous
Length
25 ft
2 main spans
Daily traffic
16,556
2021 count
Owner
State
State Highway Agency

About this bridge

FAP 33 over Byrd Branch is a concrete continuous culvert carrying FAP 33 over Byrd Branch in Loudon County, Tennessee. It was built in 1999, so it is 26 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 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 16,556 vehicles a day, roughly 10% of them trucks, projected to reach 19,648 by 2041. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 39.8 mi (64 km).

Location

Open in Google Maps
CarriesFAP 33
CrossesByrd Branch
Location1.4 M N of Greenback
RouteU.S. Route 411
CountyLoudon County
StateTennessee
Coordinates35.63962, -84.15445
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
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 typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span11 ft (3.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,556 (2021)
Projected traffic19,648 by 2041
Trucks10%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed39.8 mi (64 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$424,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FAP 33 over Byrd Branch built?

It was built in 1999, making it 26 years old in 2025.

What condition is FAP 33 over Byrd 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 February 2023.

How much traffic does FAP 33 over Byrd Branch carry?

About 16,556 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is FAP 33 over Byrd Branch?

The structure is 25 ft (7.6 m) long with a longest span of 11 ft (3.4 m).

Who owns FAP 33 over Byrd Branch?

It is owned by the State Highway Agency.