US Bridges

Nfa A390 over Poplar Creek

Good

Anderson County, Tennessee · E of SR61 in Oliver Sprin · Structure no. 010A3900001

Built
1996
29 years old
Condition
Good
inspected July 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
137 ft
2 main spans
Daily traffic
780
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa A390 over Poplar Creek is a prestressed concrete continuous box beam or girders - single or spread carrying Nfa A390 over Poplar Creek in Anderson County, Tennessee. It was built in 1996, so it is 29 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 780 vehicles a day, roughly 2% of them trucks, projected to reach 1,248 by 2041. The structure is 137 ft (41.8 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesNfa A390
CrossesPoplar Creek
LocationE of SR61 in Oliver Sprin
RouteCity Street 390
Coordinates36.02245, -84.31018
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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
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 evaluation8: Equal to present desirable 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 alignment6: Equal to present minimum criteria
Operating rating77.4 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length137 ft (41.8 m)
Longest span69 ft (20.9 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic780 (2020)
Projected traffic1,248 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 A390 over Poplar Creek built?

It was built in 1996, making it 29 years old in 2025.

What condition is Nfa A390 over Poplar 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 A390 over Poplar Creek carry?

About 780 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A390 over Poplar Creek?

The structure is 137 ft (41.8 m) long with a longest span of 69 ft (20.9 m) and a deck 31 ft wide.

Who owns Nfa A390 over Poplar Creek?

It is owned by the City or Municipal Highway Agency.