US Bridges

Nfa 1855 (sa 6303) over Branch

Good

Montgomery County, Tennessee · 6 M. S. Palmyra. · Structure no. 63018550003

Built
1960
65 years old
Condition
Good
inspected November 2024
Type
Culvert
Concrete Continuous
Length
24 ft
2 main spans
Daily traffic
272
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 1855 (sa 6303) over Branch is a concrete continuous culvert carrying Nfa 1855 (sa 6303) over Branch in Montgomery 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 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 272 vehicles a day, roughly 3% of them trucks, projected to reach 352 by 2040. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 9.9 mi (16 km).

CarriesNfa 1855 (sa 6303)
CrossesBranch
Location6 M. S. Palmyra.
RouteCounty Highway 1855
Coordinates36.34777, -87.49567
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72.5 US tons
Inventory rating42.5 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic272 (2021)
Projected traffic352 by 2040
Trucks3%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 1855 (sa 6303) over Branch built?

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

What condition is Nfa 1855 (sa 6303) over 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 November 2024.

How much traffic does Nfa 1855 (sa 6303) over Branch carry?

About 272 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 1855 (sa 6303) over Branch?

The structure is 24 ft (7.3 m) long with a longest span of 10 ft (3 m).

Who owns Nfa 1855 (sa 6303) over Branch?

It is owned by the County Highway Agency.