US Bridges

FAS 247 over Grassy Branch

Good

Williamson County, Tennessee · 1 M E Maury CO Line · Structure no. 94S62510001

Built
1979
46 years old
Condition
Good
inspected February 2025
Type
Culvert
Concrete Continuous
Length
33 ft
2 main spans
Daily traffic
8,549
2021 count
Owner
State
State Highway Agency

About this bridge

FAS 247 over Grassy Branch is a concrete continuous culvert carrying FAS 247 over Grassy Branch in Williamson County, Tennessee. It was built in 1979, so it is 46 years old, younger 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 8,549 vehicles a day, roughly 3% of them trucks, projected to reach 14,384 by 2041. The structure is 33 ft (10.1 m) long and 30 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesFAS 247
CrossesGrassy Branch
Location1 M E Maury CO Line
RouteState Highway 247
CountyWilliamson County
StateTennessee
Coordinates35.7526, -86.89365
Functional classUrban 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 inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.6 US tons
Inventory rating31.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length33 ft (10.1 m)
Longest span15 ft (4.6 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,549 (2021)
Projected traffic14,384 by 2041
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 with deck rehabilitation or replacement
Estimated improvement cost$214,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FAS 247 over Grassy Branch built?

It was built in 1979, making it 46 years old in 2025.

What condition is FAS 247 over Grassy 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 February 2025.

How much traffic does FAS 247 over Grassy Branch carry?

About 8,549 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is FAS 247 over Grassy Branch?

The structure is 33 ft (10.1 m) long with a longest span of 15 ft (4.6 m) and a deck 30 ft wide.

Who owns FAS 247 over Grassy Branch?

It is owned by the State Highway Agency.