US Bridges

FAS 306 over Small Branch

Good

Meigs County, Tennessee · Near Brittsville · Structure no. 61011870001

Built
1940
85 years old
Condition
Good
inspected January 2025
Type
Culvert
Concrete Continuous
Length
23 ft
2 main spans
Daily traffic
1,825
2021 count
Owner
State
State Highway Agency

About this bridge

FAS 306 over Small Branch is a concrete continuous culvert carrying FAS 306 over Small Branch in Meigs County, Tennessee. It was built in 1940, so it is 85 years old, older 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 1,825 vehicles a day, roughly 5% of them trucks, projected to reach 3,166 by 2041. The structure is 23 ft (7 m) long and 35 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesFAS 306
CrossesSmall Branch
LocationNear Brittsville
RouteState Highway 306
Coordinates35.35031, -84.89375
Functional classRural Major Collector

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 20
Structure length23 ft (7 m)
Longest span10 ft (3 m)
Deck width35 ft (10.6 m)
Roadway width33 ft (10 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,825 (2021)
Projected traffic3,166 by 2041
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FAS 306 over Small Branch built?

It was built in 1940, making it 85 years old in 2025.

What condition is FAS 306 over Small 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 January 2025.

How much traffic does FAS 306 over Small Branch carry?

About 1,825 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is FAS 306 over Small Branch?

The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m) and a deck 35 ft wide.

Who owns FAS 306 over Small Branch?

It is owned by the State Highway Agency.