US Bridges

Nfa 902 (sa 4020) over West Sandy Creek

FairPosted for load

Henry County, Tennessee · 4 MI North of SR 69 · Structure no. 40S80930005

Built
1942
83 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
238 ft
3 main spans
Daily traffic
844
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 902 (sa 4020) over West Sandy Creek is a steel continuous stringer/multi-beam or girder carrying Nfa 902 (sa 4020) over West Sandy Creek in Henry County, Tennessee. It was built in 1942, so it is 83 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. Its operating status is: posted for load restriction.

It carries about 844 vehicles a day, roughly 3% of them trucks, projected to reach 1,429 by 2041. The structure is 238 ft (72.5 m) long and 22 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesNfa 902 (sa 4020)
CrossesWest Sandy Creek
Location4 MI North of SR 69
RouteCounty Highway 902
CountyHenry County
StateTennessee
Coordinates36.302, -88.16058
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating20 US tons
Inventory rating15.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length238 ft (72.5 m)
Longest span92 ft (28 m)
Deck width22 ft (6.6 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic844 (2021)
Projected traffic1,429 by 2041
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 statusHistorical significance not determinable at this time
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$974,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 902 (sa 4020) over West Sandy Creek built?

It was built in 1942, making it 83 years old in 2025.

What condition is Nfa 902 (sa 4020) over West Sandy 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 902 (sa 4020) over West Sandy Creek carry?

About 844 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 902 (sa 4020) over West Sandy Creek?

The structure is 238 ft (72.5 m) long with a longest span of 92 ft (28 m) and a deck 22 ft wide.

Who owns Nfa 902 (sa 4020) over West Sandy Creek?

It is owned by the County Highway Agency.