US Bridges

Nfa 1937 (sa 1106) over Branch

Fair

Cheatham County, Tennessee · 2.5 M. S. SR12. · Structure no. 11019370001

Built
1940
85 years old
Condition
Fair
inspected August 2024
Type
Culvert
Concrete Continuous
Length
29 ft
2 main spans
Daily traffic
426
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 1937 (sa 1106) over Branch is a concrete continuous culvert carrying Nfa 1937 (sa 1106) over Branch in Cheatham County, Tennessee. It was built in 1940, so it is 85 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 426 vehicles a day, roughly 3% of them trucks, projected to reach 976 by 2040. The structure is 29 ft (8.8 m) long and 22 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

CarriesNfa 1937 (sa 1106)
CrossesBranch
Location2.5 M. S. SR12.
RouteCounty Highway 1937
Coordinates36.16933, -86.99599
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.5 US tons
Inventory rating25.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 15
Structure length29 ft (8.8 m)
Longest span12 ft (3.7 m)
Deck width22 ft (6.6 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic426 (2021)
Projected traffic976 by 2040
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.2 mi (26 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$130,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 1937 (sa 1106) over Branch built?

It was built in 1940, making it 85 years old in 2025.

What condition is Nfa 1937 (sa 1106) 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 August 2024.

How much traffic does Nfa 1937 (sa 1106) over Branch carry?

About 426 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 1937 (sa 1106) over Branch?

The structure is 29 ft (8.8 m) long with a longest span of 12 ft (3.7 m) and a deck 22 ft wide.

Who owns Nfa 1937 (sa 1106) over Branch?

It is owned by the County Highway Agency.