US Bridges

Nfa 1068 (sa 8003) over Pig Creek

PoorPosted for load

Smith County, Tennessee · 3.8 MI SE JCT I40&SR141 · Structure no. 80S62620007

Built
1950
75 years old
Condition
Poor
inspected July 2023
Type
Culvert
Concrete Continuous
Length
38 ft
2 main spans
Daily traffic
503
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 1068 (sa 8003) over Pig Creek is a concrete continuous culvert carrying Nfa 1068 (sa 8003) over Pig Creek in Smith County, Tennessee. It was built in 1950, so it is 75 years old, older than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 503 vehicles a day, roughly 3% of them trucks, projected to reach 805 by 2042. The structure is 38 ft (11.6 m) long and 29 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

Location

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CarriesNfa 1068 (sa 8003)
CrossesPig Creek
Location3.8 MI SE JCT I40&SR141
RouteCounty Highway 1068
CountySmith County
StateTennessee
Coordinates36.14178, -85.9617
Functional classRural Minor Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating26.8 US tons
Inventory rating20.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length38 ft (11.6 m)
Longest span15 ft (4.6 m)
Deck width29 ft (8.8 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic503 (2021)
Projected traffic805 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$287,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 1068 (sa 8003) over Pig Creek built?

It was built in 1950, making it 75 years old in 2025.

What condition is Nfa 1068 (sa 8003) over Pig Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2023.

How much traffic does Nfa 1068 (sa 8003) over Pig Creek carry?

About 503 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 1068 (sa 8003) over Pig Creek?

The structure is 38 ft (11.6 m) long with a longest span of 15 ft (4.6 m) and a deck 29 ft wide.

Who owns Nfa 1068 (sa 8003) over Pig Creek?

It is owned by the County Highway Agency.