US Bridges

FAS 106 over Branch

FairPosted for load

Williamson County, Tennessee · 1 M N JCT SR247&SR106 · Structure no. 94SR1060025

Built
1948
77 years old
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
21 ft
1 main span
Daily traffic
7,043
2021 count
Owner
State
State Highway Agency

About this bridge

FAS 106 over Branch is a steel stringer/multi-beam or girder carrying FAS 106 over Branch in Williamson County, Tennessee. It was built in 1948, so it is 77 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. Its operating status is: posted for load restriction.

It carries about 7,043 vehicles a day, roughly 7% of them trucks, projected to reach 11,269 by 2042. The structure is 21 ft (6.4 m) long and 28 ft wide. If it were closed, the detour would be 32.9 mi (53 km).

Location

Open in Google Maps
CarriesFAS 106
CrossesBranch
Location1 M N JCT SR247&SR106
RouteU.S. Route 431
CountyWilliamson County
StateTennessee
Coordinates35.76063, -86.83814
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
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 rating24.3 US tons
Inventory rating19 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length21 ft (6.4 m)
Longest span17 ft (5.2 m)
Deck width28 ft (8.6 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,043 (2021)
Projected traffic11,269 by 2042
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed32.9 mi (53 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$562,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FAS 106 over Branch built?

It was built in 1948, making it 77 years old in 2025.

What condition is FAS 106 over 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 December 2024.

How much traffic does FAS 106 over Branch carry?

About 7,043 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is FAS 106 over Branch?

The structure is 21 ft (6.4 m) long with a longest span of 17 ft (5.2 m) and a deck 28 ft wide.

Who owns FAS 106 over Branch?

It is owned by the State Highway Agency.