US Bridges

Nfa 1659 (sa 5507) over Branch

Good

McNairy County, Tennessee · 1.2 MI N of SR57 · Structure no. 55016590003

Built
2010
15 years old
Condition
Good
inspected August 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
96 ft
2 main spans
Daily traffic
107
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 1659 (sa 5507) over Branch is a prestressed concrete continuous box beam or girders - single or spread carrying Nfa 1659 (sa 5507) over Branch in McNairy County, Tennessee. It was built in 2010, so it is 15 years old, younger 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 107 vehicles a day, roughly 4% of them trucks, projected to reach 171 by 2042. The structure is 96 ft (29.3 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesNfa 1659 (sa 5507)
CrossesBranch
Location1.2 MI N of SR57
RouteCounty Highway 1659
Coordinates35.07956, -88.78161
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating65.4 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length96 ft (29.3 m)
Longest span48 ft (14.6 m)
Deck width30 ft (9.2 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic107 (2021)
Projected traffic171 by 2042
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 1659 (sa 5507) over Branch built?

It was built in 2010, making it 15 years old in 2025.

What condition is Nfa 1659 (sa 5507) 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 August 2024.

How much traffic does Nfa 1659 (sa 5507) over Branch carry?

About 107 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is Nfa 1659 (sa 5507) over Branch?

The structure is 96 ft (29.3 m) long with a longest span of 48 ft (14.6 m) and a deck 30 ft wide.

Who owns Nfa 1659 (sa 5507) over Branch?

It is owned by the County Highway Agency.