US Bridges

Nfa 860 (sa 2714) over Robertson Creek

Fair

Gibson County, Tennessee · 3.6 MI NE JCT SR43&SR77 · Structure no. 27008600013

Built
2001
24 years old
Condition
Fair
inspected July 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
136 ft
3 main spans
Daily traffic
923
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 860 (sa 2714) over Robertson Creek is a prestressed concrete continuous box beam or girders - single or spread carrying Nfa 860 (sa 2714) over Robertson Creek in Gibson County, Tennessee. It was built in 2001, so it is 24 years old, younger 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 6 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 923 vehicles a day, roughly 3% of them trucks, projected to reach 1,477 by 2042. The structure is 136 ft (41.5 m) long and 34 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesNfa 860 (sa 2714)
CrossesRobertson Creek
Location3.6 MI NE JCT SR43&SR77
RouteCounty Highway 860
CountyGibson County
StateTennessee
Coordinates35.9775, -88.7563
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69.3 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length136 ft (41.5 m)
Longest span50 ft (15.2 m)
Deck width34 ft (10.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic923 (2021)
Projected traffic1,477 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-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 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 860 (sa 2714) over Robertson Creek built?

It was built in 2001, making it 24 years old in 2025.

What condition is Nfa 860 (sa 2714) over Robertson 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 July 2023.

How much traffic does Nfa 860 (sa 2714) over Robertson Creek carry?

About 923 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 860 (sa 2714) over Robertson Creek?

The structure is 136 ft (41.5 m) long with a longest span of 50 ft (15.2 m) and a deck 34 ft wide.

Who owns Nfa 860 (sa 2714) over Robertson Creek?

It is owned by the County Highway Agency.