US Bridges

Nfa 848 (sa 1709) over Branch

Good

Crockett County, Tennessee · 2.7 MI E of Dyer Co. · Structure no. 17F00180007

Built
1996
29 years old
Condition
Good
inspected April 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
65 ft
1 main span
Daily traffic
330
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 848 (sa 1709) over Branch is a prestressed concrete box beam or girders - single or spread carrying Nfa 848 (sa 1709) over Branch in Crockett County, Tennessee. It was built in 1996, so it is 29 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 330 vehicles a day, roughly 3% of them trucks, projected to reach 528 by 2042. The structure is 65 ft (19.8 m) long and 26 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesNfa 848 (sa 1709)
CrossesBranch
Location2.7 MI E of Dyer Co.
RouteCounty Highway 848
Coordinates35.88225, -89.2825
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.4 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length65 ft (19.8 m)
Longest span65 ft (19.8 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic330 (2021)
Projected traffic528 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 848 (sa 1709) over Branch built?

It was built in 1996, making it 29 years old in 2025.

What condition is Nfa 848 (sa 1709) 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 April 2024.

How much traffic does Nfa 848 (sa 1709) over Branch carry?

About 330 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 848 (sa 1709) over Branch?

The structure is 65 ft (19.8 m) long with a longest span of 65 ft (19.8 m) and a deck 26 ft wide.

Who owns Nfa 848 (sa 1709) over Branch?

It is owned by the County Highway Agency.