US Bridges

Nfa 3990 over Boones Creek

FairPosted for load

Washington County, Tennessee · N of Jonesboro · Structure no. 900A0040001

Built
1931
94 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
26 ft
1 main span
Daily traffic
801
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 3990 over Boones Creek is a steel stringer/multi-beam or girder carrying Nfa 3990 over Boones Creek in Washington County, Tennessee. It was built in 1931, so it is 94 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 801 vehicles a day, roughly 3% of them trucks, projected to reach 1,282 by 2042. The structure is 26 ft (7.8 m) long and 22 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesNfa 3990
CrossesBoones Creek
LocationN of Jonesboro
RouteCounty Highway 3990
CountyWashington County
StateTennessee
Coordinates36.3159, -82.48241
Functional classRural Major 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating17.5 US tons
Inventory rating13.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length26 ft (7.8 m)
Longest span23 ft (7 m)
Deck width22 ft (6.6 m)
Roadway width21 ft (6.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic801 (2021)
Projected traffic1,282 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$469,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 3990 over Boones Creek built?

It was built in 1931, making it 94 years old in 2025.

What condition is Nfa 3990 over Boones 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 June 2024.

How much traffic does Nfa 3990 over Boones Creek carry?

About 801 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 3990 over Boones Creek?

The structure is 26 ft (7.8 m) long with a longest span of 23 ft (7 m) and a deck 22 ft wide.

Who owns Nfa 3990 over Boones Creek?

It is owned by the County Highway Agency.