US Bridges

Nfa 1486 over Nfa 1486 / I40

PoorPosted for load

Wilson County, Tennessee · Overhead over I40 · Structure no. 95I00400047

Built
1962
63 years old
Condition
Poor
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
321 ft
4 main spans
Daily traffic
288
2021 count
Owner
State
State Highway Agency

About this bridge

Nfa 1486 over Nfa 1486 / I40 is a steel continuous stringer/multi-beam or girder carrying Nfa 1486 over Nfa 1486 / I40 in Wilson County, Tennessee. It was built in 1962, so it is 63 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 288 vehicles a day, roughly 3% of them trucks, projected to reach 461 by 2042. The structure is 321 ft (97.8 m) long and 29 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesNfa 1486
CrossesNfa 1486 / I40
LocationOverhead over I40
RouteCounty Highway 1486
CountyWilson County
StateTennessee
Coordinates36.16945, -86.11343
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating12.1 US tons
Inventory rating9.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length321 ft (97.8 m)
Longest span93 ft (28.3 m)
Deck width29 ft (8.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic288 (2021)
Projected traffic461 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedDeck rehabilitation with only incidental widening
Estimated improvement cost$451,000 (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Nfa 1486 over Nfa 1486 / I40 built?

It was built in 1962, making it 63 years old in 2025.

What condition is Nfa 1486 over Nfa 1486 / I40 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 October 2023.

How much traffic does Nfa 1486 over Nfa 1486 / I40 carry?

About 288 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 1486 over Nfa 1486 / I40?

The structure is 321 ft (97.8 m) long with a longest span of 93 ft (28.3 m) and a deck 29 ft wide.

Who owns Nfa 1486 over Nfa 1486 / I40?

It is owned by the State Highway Agency.