US Bridges

Nfa B992 over Sparks Branch

Good

Williamson County, Tennessee · In the City of Franklin · Structure no. 94S62500003

Built
2005
20 years old
Condition
Good
inspected July 2023
Type
Culvert
Concrete
Length
37 ft
2 main spans
Daily traffic
2,810
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa B992 over Sparks Branch is a concrete culvert carrying Nfa B992 over Sparks Branch in Williamson County, Tennessee. It was built in 2005, so it is 20 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,810 vehicles a day, roughly 1% of them trucks, projected to reach 4,496 by 2041. The structure is 37 ft (11.3 m) long and 39 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesNfa B992
CrossesSparks Branch
LocationIn the City of Franklin
RouteCity Street 992
CountyWilliamson County
StateTennessee
Coordinates35.92254, -86.88013
Functional classUrban Local

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.
Culvert8 Very GoodNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable 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 rating59.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length37 ft (11.3 m)
Longest span16 ft (4.9 m)
Deck width39 ft (11.9 m)
Roadway width35 ft (10.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,810 (2020)
Projected traffic4,496 by 2041
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa B992 over Sparks Branch built?

It was built in 2005, making it 20 years old in 2025.

What condition is Nfa B992 over Sparks 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 July 2023.

How much traffic does Nfa B992 over Sparks Branch carry?

About 2,810 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is Nfa B992 over Sparks Branch?

The structure is 37 ft (11.3 m) long with a longest span of 16 ft (4.9 m) and a deck 39 ft wide.

Who owns Nfa B992 over Sparks Branch?

It is owned by the City or Municipal Highway Agency.