US Bridges

Nfa A017 over Brush Creek

Good

Williamson County, Tennessee · 4.6 MI E JCT I40&SR96 · Structure no. 940A0170001

Built
1992
33 years old
Condition
Good
inspected June 2023
Type
Culvert
Concrete Continuous
Length
48 ft
3 main spans
Daily traffic
30
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A017 over Brush Creek is a concrete continuous culvert carrying Nfa A017 over Brush Creek in Williamson County, Tennessee. It was built in 1992, so it is 33 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 30 vehicles a day, roughly 1% of them trucks, projected to reach 48 by 2039. The structure is 48 ft (14.6 m) long and 25 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesNfa A017
CrossesBrush Creek
Location4.6 MI E JCT I40&SR96
RouteCounty Highway 17
Coordinates36.01859, -87.09237
Functional classRural 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.
Culvert7 GoodSome minor problems.
Last inspectionJune 2023
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 adequacy7: Better than present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating72.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length48 ft (14.6 m)
Longest span12 ft (3.7 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2020)
Projected traffic48 by 2039
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 A017 over Brush Creek built?

It was built in 1992, making it 33 years old in 2025.

What condition is Nfa A017 over Brush Creek 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 June 2023.

How much traffic does Nfa A017 over Brush Creek carry?

About 30 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is Nfa A017 over Brush Creek?

The structure is 48 ft (14.6 m) long with a longest span of 12 ft (3.7 m) and a deck 25 ft wide.

Who owns Nfa A017 over Brush Creek?

It is owned by the County Highway Agency.