US Bridges

Nfa A458 over Tidwell Branch

Good

Lawrence County, Tennessee · 2.2 M. Nw. St. Joseph · Structure no. 500A4580001

Built
1993
32 years old
Condition
Good
inspected May 2023
Type
Culvert
Concrete Continuous
Length
29 ft
2 main spans
Daily traffic
30
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A458 over Tidwell Branch is a concrete continuous culvert carrying Nfa A458 over Tidwell Branch in Lawrence County, Tennessee. It was built in 1993, so it is 32 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 30 vehicles a day, roughly 2% of them trucks, projected to reach 48 by 2041. The structure is 29 ft (8.7 m) long and 29 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesNfa A458
CrossesTidwell Branch
Location2.2 M. Nw. St. Joseph
RouteCounty Highway 458
CountyLawrence County
StateTennessee
Coordinates35.07487, -87.51871
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum 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 rating42.5 US tons
Inventory rating24.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length29 ft (8.7 m)
Longest span14 ft (4.3 m)
Deck width29 ft (8.8 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2020)
Projected traffic48 by 2041
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 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 A458 over Tidwell Branch built?

It was built in 1993, making it 32 years old in 2025.

What condition is Nfa A458 over Tidwell 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 May 2023.

How much traffic does Nfa A458 over Tidwell Branch carry?

About 30 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A458 over Tidwell Branch?

The structure is 29 ft (8.7 m) long with a longest span of 14 ft (4.3 m) and a deck 29 ft wide.

Who owns Nfa A458 over Tidwell Branch?

It is owned by the County Highway Agency.