US Bridges

Nfa 1433 (sa 2308) over Branch

Fair

Dyer County, Tennessee · 0.1 MI N of Dyersburg · Structure no. 23S82400001

Built
1960
65 years old
Condition
Fair
inspected October 2023
Type
Culvert
Concrete Continuous
Length
24 ft
2 main spans
Daily traffic
8,933
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa 1433 (sa 2308) over Branch is a concrete continuous culvert carrying Nfa 1433 (sa 2308) over Branch in Dyer County, Tennessee. It was built in 1960, so it is 65 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.

It carries about 8,933 vehicles a day, roughly 3% of them trucks, projected to reach 12,995 by 2042. The structure is 24 ft (7.3 m) long and 84 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesNfa 1433 (sa 2308)
CrossesBranch
Location0.1 MI N of Dyersburg
RouteCity Street 1433
Coordinates36.05846, -89.38065
Functional classUrban 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
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 inspectionOctober 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 geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 15
Structure length24 ft (7.3 m)
Longest span11 ft (3.4 m)
Deck width84 ft (25.5 m)
Roadway width72 ft (21.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,933 (2021)
Projected traffic12,995 by 2042
Trucks3%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$323,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 1433 (sa 2308) over Branch built?

It was built in 1960, making it 65 years old in 2025.

What condition is Nfa 1433 (sa 2308) 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 October 2023.

How much traffic does Nfa 1433 (sa 2308) over Branch carry?

About 8,933 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 1433 (sa 2308) over Branch?

The structure is 24 ft (7.3 m) long with a longest span of 11 ft (3.4 m) and a deck 84 ft wide.

Who owns Nfa 1433 (sa 2308) over Branch?

It is owned by the City or Municipal Highway Agency.