US Bridges

Nfa 1435 (sa 2310) over Biffle Creek

PoorPosted for load

Dyer County, Tennessee · 3 Mi. S. of Obion Co. · Structure no. 23S80050003

Built
1930
95 years old
Condition
Poor
inspected October 2023
Type
Tee Beam
Concrete
Length
60 ft
2 main spans
Daily traffic
400
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 1435 (sa 2310) over Biffle Creek is a concrete tee beam carrying Nfa 1435 (sa 2310) over Biffle Creek in Dyer County, Tennessee. It was built in 1930, so it is 95 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 400 vehicles a day, roughly 3% of them trucks, projected to reach 1,218 by 2042. The structure is 60 ft (18.3 m) long and 26 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesNfa 1435 (sa 2310)
CrossesBiffle Creek
Location3 Mi. S. of Obion Co.
RouteCounty Highway 1435
CountyDyer County
StateTennessee
Coordinates36.15839, -89.32027
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.2 US tons
Inventory rating26.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 10
Structure length60 ft (18.3 m)
Longest span30 ft (9.1 m)
Deck width26 ft (8 m)
Roadway width23 ft (6.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (2021)
Projected traffic1,218 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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$698,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 1435 (sa 2310) over Biffle Creek built?

It was built in 1930, making it 95 years old in 2025.

What condition is Nfa 1435 (sa 2310) over Biffle Creek 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 1435 (sa 2310) over Biffle Creek carry?

About 400 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 1435 (sa 2310) over Biffle Creek?

The structure is 60 ft (18.3 m) long with a longest span of 30 ft (9.1 m) and a deck 26 ft wide.

Who owns Nfa 1435 (sa 2310) over Biffle Creek?

It is owned by the County Highway Agency.