US Bridges

Nfa B128 over Branch

Fair

Gibson County, Tennessee · In Humbolt · Structure no. 27030060001

Built
1980
45 years old
Condition
Fair
inspected July 2023
Type
Culvert
Concrete Continuous
Length
38 ft
2 main spans
Daily traffic
1,260
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa B128 over Branch is a concrete continuous culvert carrying Nfa B128 over Branch in Gibson County, Tennessee. It was built in 1980, so it is 45 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 6 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 1,260 vehicles a day, roughly 1% of them trucks, projected to reach 2,016 by 2042. The structure is 38 ft (11.6 m) long and 38 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesNfa B128
CrossesBranch
LocationIn Humbolt
RouteCity Street 128
CountyGibson County
StateTennessee
Coordinates35.82836, -88.91622
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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length38 ft (11.6 m)
Longest span17 ft (5.3 m)
Deck width38 ft (11.6 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,260 (2020)
Projected traffic2,016 by 2042
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 B128 over Branch built?

It was built in 1980, making it 45 years old in 2025.

What condition is Nfa B128 over 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 July 2023.

How much traffic does Nfa B128 over Branch carry?

About 1,260 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is Nfa B128 over Branch?

The structure is 38 ft (11.6 m) long with a longest span of 17 ft (5.3 m) and a deck 38 ft wide.

Who owns Nfa B128 over Branch?

It is owned by the City or Municipal Highway Agency.