US Bridges

Nfa A004 over Havely Springs Branch

Fair

Hamblen County, Tennessee · .5MI East of SR32 · Structure no. 320A0040001

Built
1987
38 years old
Condition
Fair
inspected September 2023
Type
Culvert
Concrete Continuous
Length
29 ft
2 main spans
Daily traffic
750
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A004 over Havely Springs Branch is a concrete continuous culvert carrying Nfa A004 over Havely Springs Branch in Hamblen County, Tennessee. It was built in 1987, so it is 38 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 5 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 750 vehicles a day, roughly 2% of them trucks, projected to reach 1,200 by 2039. The structure is 29 ft (8.8 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesNfa A004
CrossesHavely Springs Branch
Location.5MI East of SR32
RouteCounty Highway 4
CountyHamblen County
StateTennessee
Coordinates36.24396, -83.29623
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length29 ft (8.8 m)
Longest span12 ft (3.7 m)
Deck width33 ft (10.2 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic750 (2020)
Projected traffic1,200 by 2039
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A004 over Havely Springs Branch built?

It was built in 1987, making it 38 years old in 2025.

What condition is Nfa A004 over Havely Springs Branch 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 A004 over Havely Springs Branch carry?

About 750 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A004 over Havely Springs Branch?

The structure is 29 ft (8.8 m) long with a longest span of 12 ft (3.7 m) and a deck 33 ft wide.

Who owns Nfa A004 over Havely Springs Branch?

It is owned by the County Highway Agency.