US Bridges

Nfa 958 (sa 1111) over Sycamore Creek

Fair

Cheatham County, Tennessee · 1 M. E. SR49 · Structure no. 11S63310009

Built
1960
65 years old
Condition
Fair
inspected August 2024
Type
Tee Beam
Concrete Continuous
Length
323 ft
3 main spans
Daily traffic
2,630
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 958 (sa 1111) over Sycamore Creek is a concrete continuous tee beam carrying Nfa 958 (sa 1111) over Sycamore Creek in Cheatham 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 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 2,630 vehicles a day, roughly 1% of them trucks, projected to reach 3,491 by 2041. The structure is 323 ft (98.5 m) long and 29 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesNfa 958 (sa 1111)
CrossesSycamore Creek
Location1 M. E. SR49
RouteCounty Highway 958
Coordinates36.34565, -87.02898
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating46.7 US tons
Inventory rating27.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3 (+6 approach)
Design loadH 15
Structure length323 ft (98.5 m)
Longest span60 ft (18.3 m)
Deck width29 ft (8.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,630 (2021)
Projected traffic3,491 by 2041
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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$4.1 million (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 958 (sa 1111) over Sycamore Creek built?

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

What condition is Nfa 958 (sa 1111) over Sycamore Creek 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 August 2024.

How much traffic does Nfa 958 (sa 1111) over Sycamore Creek carry?

About 2,630 vehicles per day (2021 count), of which roughly 1% are trucks.

How long is Nfa 958 (sa 1111) over Sycamore Creek?

The structure is 323 ft (98.5 m) long with a longest span of 60 ft (18.3 m) and a deck 29 ft wide.

Who owns Nfa 958 (sa 1111) over Sycamore Creek?

It is owned by the County Highway Agency.