US Bridges

Nfa 1781 (sa 4311) over White Oak Creek

Good

Humphreys County, Tennessee · 2 M. NW SR 13 · Structure no. 43017810005

Built
2012
13 years old
Condition
Good
inspected August 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
160 ft
3 main spans
Daily traffic
668
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 1781 (sa 4311) over White Oak Creek is a prestressed concrete box beam or girders - multiple carrying Nfa 1781 (sa 4311) over White Oak Creek in Humphreys County, Tennessee. It was built in 2012, so it is 13 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 668 vehicles a day, roughly 3% of them trucks, projected to reach 1,069 by 2042. The structure is 160 ft (48.8 m) long and 24 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesNfa 1781 (sa 4311)
CrossesWhite Oak Creek
Location2 M. NW SR 13
RouteCounty Highway 1781
Coordinates36.22705, -87.76643
Functional classRural Minor Collector

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 protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating94.7 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length160 ft (48.8 m)
Longest span53 ft (16.3 m)
Deck width24 ft (7.4 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic668 (2021)
Projected traffic1,069 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 1781 (sa 4311) over White Oak Creek built?

It was built in 2012, making it 13 years old in 2025.

What condition is Nfa 1781 (sa 4311) over White Oak 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 August 2023.

How much traffic does Nfa 1781 (sa 4311) over White Oak Creek carry?

About 668 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 1781 (sa 4311) over White Oak Creek?

The structure is 160 ft (48.8 m) long with a longest span of 53 ft (16.3 m) and a deck 24 ft wide.

Who owns Nfa 1781 (sa 4311) over White Oak Creek?

It is owned by the County Highway Agency.