US Bridges

FAP 1 over Gap Branch

FairPosted for load

Grainger County, Tennessee · 2 M SE of Chestnut Grove · Structure no. 29SR0010027

Built
1942
83 years old, rebuilt 2000
Condition
Fair
inspected April 2024
Type
Tee Beam
Concrete
Length
261 ft
6 main spans
Daily traffic
5,584
2021 count
Owner
State
State Highway Agency

About this bridge

FAP 1 over Gap Branch is a concrete tee beam carrying FAP 1 over Gap Branch in Grainger County, Tennessee. It was built in 1942 and reconstructed in 2000, so it is 83 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 5,584 vehicles a day, roughly 5% of them trucks, projected to reach 8,934 by 2042. The structure is 261 ft (79.7 m) long and 31 ft wide. If it were closed, the detour would be 49.7 mi (80 km).

Location

Open in Google Maps
CarriesFAP 1
CrossesGap Branch
Location2 M SE of Chestnut Grove
RouteU.S. Route 11
CountyGrainger County
StateTennessee
Coordinates36.3295, -83.37524
Functional classRural Minor 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40.7 US tons
Inventory rating24.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans6
Design loadHS 15
Structure length261 ft (79.7 m)
Longest span43 ft (13.2 m)
Deck width31 ft (9.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,584 (2021)
Projected traffic8,934 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed49.7 mi (80 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$1.3 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FAP 1 over Gap Branch built?

It was built in 1942, making it 83 years old in 2025. It was reconstructed in 2000.

What condition is FAP 1 over Gap 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 April 2024.

How much traffic does FAP 1 over Gap Branch carry?

About 5,584 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is FAP 1 over Gap Branch?

The structure is 261 ft (79.7 m) long with a longest span of 43 ft (13.2 m) and a deck 31 ft wide.

Who owns FAP 1 over Gap Branch?

It is owned by the State Highway Agency.