US Bridges

Nfa A626 over Poplar Spring Branch

Good

Marion County, Tennessee · .5 M West of SR 27 · Structure no. 580A6260001

Built
1990
35 years old
Condition
Good
inspected October 2024
Type
Culvert
Concrete Continuous
Length
26 ft
2 main spans
Daily traffic
180
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa A626 over Poplar Spring Branch is a concrete continuous culvert carrying Nfa A626 over Poplar Spring Branch in Marion County, Tennessee. It was built in 1990, so it is 35 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 180 vehicles a day, roughly 2% of them trucks, projected to reach 288 by 2040. The structure is 26 ft (7.8 m) long and 64 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesNfa A626
CrossesPoplar Spring Branch
Location.5 M West of SR 27
RouteCity Street 626
Coordinates34.99393, -85.73009
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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length26 ft (7.8 m)
Longest span12 ft (3.7 m)
Deck width64 ft (19.4 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic180 (2020)
Projected traffic288 by 2040
Trucks2%
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 A626 over Poplar Spring Branch built?

It was built in 1990, making it 35 years old in 2025.

What condition is Nfa A626 over Poplar Spring 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 October 2024.

How much traffic does Nfa A626 over Poplar Spring Branch carry?

About 180 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A626 over Poplar Spring Branch?

The structure is 26 ft (7.8 m) long with a longest span of 12 ft (3.7 m) and a deck 64 ft wide.

Who owns Nfa A626 over Poplar Spring Branch?

It is owned by the City or Municipal Highway Agency.