US Bridges

Nfa A211 over Turnbull Creek

Good

Williamson County, Tennessee · 2.5 MI SW JCT SR96&SR100 · Structure no. 940A2110001

Built
1982
43 years old
Condition
Good
inspected July 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
55 ft
1 main span
Daily traffic
210
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A211 over Turnbull Creek is a prestressed concrete box beam or girders - single or spread carrying Nfa A211 over Turnbull Creek in Williamson County, Tennessee. It was built in 1982, so it is 43 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 210 vehicles a day, roughly 2% of them trucks, projected to reach 336 by 2041. The structure is 55 ft (16.8 m) long and 28 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesNfa A211
CrossesTurnbull Creek
Location2.5 MI SW JCT SR96&SR100
RouteCounty Highway 211
Coordinates35.97853, -87.15884
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 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 adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59.5 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length55 ft (16.8 m)
Longest span50 ft (15.2 m)
Deck width28 ft (8.5 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic210 (2020)
Projected traffic336 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Nfa A211 over Turnbull Creek built?

It was built in 1982, making it 43 years old in 2025.

What condition is Nfa A211 over Turnbull 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 July 2023.

How much traffic does Nfa A211 over Turnbull Creek carry?

About 210 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A211 over Turnbull Creek?

The structure is 55 ft (16.8 m) long with a longest span of 50 ft (15.2 m) and a deck 28 ft wide.

Who owns Nfa A211 over Turnbull Creek?

It is owned by the County Highway Agency.