US Bridges

Nfa A323 (sa 2726) over Branch of Thompson Creek

PoorPosted for load

Gibson County, Tennessee · 1.7 MI SW JCT SR105&CAROL · Structure no. 270A3230001

Built
1970
55 years old
Condition
Poor
inspected July 2023
Type
Channel Beam
Concrete
Length
67 ft
3 main spans
Daily traffic
210
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A323 (sa 2726) over Branch of Thompson Creek is a concrete channel beam carrying Nfa A323 (sa 2726) over Branch of Thompson Creek in Gibson County, Tennessee. It was built in 1970, so it is 55 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 210 vehicles a day, roughly 2% of them trucks, projected to reach 336 by 2042. The structure is 67 ft (20.4 m) long and 21 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesNfa A323 (sa 2726)
CrossesBranch of Thompson Creek
Location1.7 MI SW JCT SR105&CAROL
RouteCounty Highway 323
CountyGibson County
StateTennessee
Coordinates36.03106, -88.7113
Functional classRural Local

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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating11.5 US tons
Inventory rating4 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadH 10
Structure length67 ft (20.4 m)
Longest span29 ft (8.8 m)
Deck width21 ft (6.4 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic210 (2020)
Projected traffic336 by 2042
Trucks2%
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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$236,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A323 (sa 2726) over Branch of Thompson Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is Nfa A323 (sa 2726) over Branch of Thompson 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 July 2023.

How much traffic does Nfa A323 (sa 2726) over Branch of Thompson Creek carry?

About 210 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A323 (sa 2726) over Branch of Thompson Creek?

The structure is 67 ft (20.4 m) long with a longest span of 29 ft (8.8 m) and a deck 21 ft wide.

Who owns Nfa A323 (sa 2726) over Branch of Thompson Creek?

It is owned by the County Highway Agency.