US Bridges

Nfa A648 over Dry Weakley Creek

Good

Lawrence County, Tennessee · 3.2 M.E. Etheridge. · Structure no. 500A1930001

Built
2003
22 years old
Condition
Good
inspected June 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
39 ft
1 main span
Daily traffic
50
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A648 over Dry Weakley Creek is a prestressed concrete box beam or girders - multiple carrying Nfa A648 over Dry Weakley Creek in Lawrence County, Tennessee. It was built in 2003, so it is 22 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 50 vehicles a day, roughly 2% of them trucks, projected to reach 80 by 2042. The structure is 39 ft (11.9 m) long and 24 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesNfa A648
CrossesDry Weakley Creek
Location3.2 M.E. Etheridge.
RouteCounty Highway 648
Coordinates35.32226, -87.22993
Functional classRural Local

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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating52.5 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length39 ft (11.9 m)
Longest span35 ft (10.7 m)
Deck width24 ft (7.4 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2020)
Projected traffic80 by 2042
Trucks2%
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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A648 over Dry Weakley Creek built?

It was built in 2003, making it 22 years old in 2025.

What condition is Nfa A648 over Dry Weakley Creek 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 June 2023.

How much traffic does Nfa A648 over Dry Weakley Creek carry?

About 50 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A648 over Dry Weakley Creek?

The structure is 39 ft (11.9 m) long with a longest span of 35 ft (10.7 m) and a deck 24 ft wide.

Who owns Nfa A648 over Dry Weakley Creek?

It is owned by the County Highway Agency.