US Bridges

Nfa 955 (sa 4110) over Simmons Branch

Fair

Hickman County, Tennessee · 5 M South of Centerville · Structure no. 41S61780007

Built
1950
75 years old
Condition
Fair
inspected October 2023
Type
Culvert
Concrete Continuous
Length
48 ft
3 main spans
Daily traffic
243
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 955 (sa 4110) over Simmons Branch is a concrete continuous culvert carrying Nfa 955 (sa 4110) over Simmons Branch in Hickman County, Tennessee. It was built in 1950, so it is 75 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 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 243 vehicles a day, roughly 3% of them trucks, projected to reach 640 by 2042. The structure is 48 ft (14.6 m) long and 27 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesNfa 955 (sa 4110)
CrossesSimmons Branch
Location5 M South of Centerville
RouteCounty Highway 955
CountyHickman County
StateTennessee
Coordinates35.6872, -87.43935
Functional classRural Minor 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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
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 alignment6: Equal to present minimum criteria
Operating rating48.6 US tons
Inventory rating28.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length48 ft (14.6 m)
Longest span15 ft (4.6 m)
Deck width27 ft (8.1 m)
Roadway width22 ft (6.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic243 (2021)
Projected traffic640 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$97,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 955 (sa 4110) over Simmons Branch built?

It was built in 1950, making it 75 years old in 2025.

What condition is Nfa 955 (sa 4110) over Simmons 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 955 (sa 4110) over Simmons Branch carry?

About 243 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 955 (sa 4110) over Simmons Branch?

The structure is 48 ft (14.6 m) long with a longest span of 15 ft (4.6 m) and a deck 27 ft wide.

Who owns Nfa 955 (sa 4110) over Simmons Branch?

It is owned by the County Highway Agency.