US Bridges

FAP 29 over Barnett Branch

Fair

Roane County, Tennessee · In Harriman · Structure no. 73SR0290007

Built
1968
57 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
186 ft
3 main spans
Daily traffic
11,559
2021 count
Owner
State
State Highway Agency

About this bridge

FAP 29 over Barnett Branch is a prestressed concrete stringer/multi-beam or girder carrying FAP 29 over Barnett Branch in Roane County, Tennessee. It was built in 1968, so it is 57 years old, older 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 11,559 vehicles a day, roughly 9% of them trucks, projected to reach 16,890 by 2041. The structure is 186 ft (56.7 m) long and 81 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesFAP 29
CrossesBarnett Branch
LocationIn Harriman
RouteU.S. Route 27
CountyRoane County
StateTennessee
Coordinates35.94265, -84.53986
Functional classUrban Other Principal Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.2 US tons
Inventory rating34.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length186 ft (56.7 m)
Longest span68 ft (20.7 m)
Deck width81 ft (24.7 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,559 (2021)
Projected traffic16,890 by 2041
Trucks9%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 FAP 29 over Barnett Branch built?

It was built in 1968, making it 57 years old in 2025.

What condition is FAP 29 over Barnett 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 May 2023.

How much traffic does FAP 29 over Barnett Branch carry?

About 11,559 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is FAP 29 over Barnett Branch?

The structure is 186 ft (56.7 m) long with a longest span of 68 ft (20.7 m) and a deck 81 ft wide.

Who owns FAP 29 over Barnett Branch?

It is owned by the State Highway Agency.