US Bridges

Nfa A717 over Spring Creek

Fair

Wilson County, Tennessee · 1.3 MI West of SR10 · Structure no. 950A7170003

Built
1927
98 years old
Condition
Fair
inspected April 2024
Type
Arch - Deck
Concrete
Length
106 ft
2 main spans
Daily traffic
960
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A717 over Spring Creek is a concrete arch - deck carrying Nfa A717 over Spring Creek in Wilson County, Tennessee. It was built in 1927, so it is 98 years old, older than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 960 vehicles a day, roughly 2% of them trucks, projected to reach 1,536 by 2040. The structure is 106 ft (32.3 m) long and 18 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesNfa A717
CrossesSpring Creek
Location1.3 MI West of SR10
RouteCounty Highway 0A717
CountyWilson County
StateTennessee
Coordinates36.27797, -86.29788
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.7 US tons
Inventory rating26.8 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length106 ft (32.3 m)
Longest span50 ft (15.2 m)
Deck width18 ft (5.4 m)
Roadway width15 ft (4.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic960 (2020)
Projected traffic1,536 by 2040
Trucks2%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$548,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A717 over Spring Creek built?

It was built in 1927, making it 98 years old in 2025.

What condition is Nfa A717 over Spring Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in April 2024.

How much traffic does Nfa A717 over Spring Creek carry?

About 960 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A717 over Spring Creek?

The structure is 106 ft (32.3 m) long with a longest span of 50 ft (15.2 m) and a deck 18 ft wide.

Who owns Nfa A717 over Spring Creek?

It is owned by the County Highway Agency.