US Bridges

Nfa 1104 (sa 0811) over Shanborne Branch

Good

Cannon County, Tennessee · 3MI East of SR53 · Structure no. 08S42550003

Built
1954
71 years old
Condition
Good
inspected March 2023
Type
Culvert
Concrete Continuous
Length
44 ft
3 main spans
Daily traffic
1,185
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 1104 (sa 0811) over Shanborne Branch is a concrete continuous culvert carrying Nfa 1104 (sa 0811) over Shanborne Branch in Cannon County, Tennessee. It was built in 1954, so it is 71 years old, older than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,185 vehicles a day, roughly 3% of them trucks, projected to reach 2,032 by 2041. The structure is 44 ft (13.3 m) long and 36 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

Open in Google Maps
CarriesNfa 1104 (sa 0811)
CrossesShanborne Branch
Location3MI East of SR53
RouteCounty Highway 1104
CountyCannon County
StateTennessee
Coordinates35.83229, -85.99564
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating62.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length44 ft (13.3 m)
Longest span12 ft (3.7 m)
Deck width36 ft (11.1 m)
Roadway width36 ft (11.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,185 (2021)
Projected traffic2,032 by 2041
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 1104 (sa 0811) over Shanborne Branch built?

It was built in 1954, making it 71 years old in 2025.

What condition is Nfa 1104 (sa 0811) over Shanborne Branch in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2023.

How much traffic does Nfa 1104 (sa 0811) over Shanborne Branch carry?

About 1,185 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 1104 (sa 0811) over Shanborne Branch?

The structure is 44 ft (13.3 m) long with a longest span of 12 ft (3.7 m) and a deck 36 ft wide.

Who owns Nfa 1104 (sa 0811) over Shanborne Branch?

It is owned by the County Highway Agency.