US Bridges

Nfa 910 (sa 4308) over Spring Creek

Fair

Humphreys County, Tennessee · 4 M. W. SR 13. · Structure no. 43S62210007

Built
1975
50 years old
Condition
Fair
inspected September 2023
Type
Culvert
Concrete Continuous
Length
49 ft
3 main spans
Daily traffic
1,239
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 910 (sa 4308) over Spring Creek is a concrete continuous culvert carrying Nfa 910 (sa 4308) over Spring Creek in Humphreys County, Tennessee. It was built in 1975, so it is 50 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 1,239 vehicles a day, roughly 3% of them trucks, projected to reach 1,982 by 2042. The structure is 49 ft (14.9 m) long and 27 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesNfa 910 (sa 4308)
CrossesSpring Creek
Location4 M. W. SR 13.
RouteCounty Highway 910
CountyHumphreys County
StateTennessee
Coordinates36.16141, -87.83051
Functional classRural Minor Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.3 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length49 ft (14.9 m)
Longest span15 ft (4.6 m)
Deck width27 ft (8.3 m)
Roadway width25 ft (7.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,239 (2021)
Projected traffic1,982 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 of existing bridge without deck rehabilitation
Estimated improvement cost$178,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 910 (sa 4308) over Spring Creek built?

It was built in 1975, making it 50 years old in 2025.

What condition is Nfa 910 (sa 4308) 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 September 2023.

How much traffic does Nfa 910 (sa 4308) over Spring Creek carry?

About 1,239 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 910 (sa 4308) over Spring Creek?

The structure is 49 ft (14.9 m) long with a longest span of 15 ft (4.6 m) and a deck 27 ft wide.

Who owns Nfa 910 (sa 4308) over Spring Creek?

It is owned by the County Highway Agency.