US Bridges

Nfa A333 over Purtle Creek

Good

Wilson County, Tennessee · 0.3 MI West of Dekalb CO · Structure no. 950A3330001

Built
1950
75 years old
Condition
Good
inspected May 2024
Type
Culvert
Concrete Continuous
Length
33 ft
3 main spans
Daily traffic
180
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A333 over Purtle Creek is a concrete continuous culvert carrying Nfa A333 over Purtle Creek in Wilson County, Tennessee. It was built in 1950, so it is 75 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 180 vehicles a day, roughly 2% of them trucks, projected to reach 288 by 2040. The structure is 33 ft (10.1 m) long and 16 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesNfa A333
CrossesPurtle Creek
Location0.3 MI West of Dekalb CO
RouteCounty Highway 0A333
CountyWilson County
StateTennessee
Coordinates36.02387, -86.04324
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 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating49.6 US tons
Inventory rating31.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length33 ft (10.1 m)
Longest span10 ft (3 m)
Deck width16 ft (4.9 m)
Roadway width15 ft (4.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic180 (2020)
Projected traffic288 by 2040
Trucks2%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$176,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A333 over Purtle Creek built?

It was built in 1950, making it 75 years old in 2025.

What condition is Nfa A333 over Purtle 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 May 2024.

How much traffic does Nfa A333 over Purtle Creek carry?

About 180 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A333 over Purtle Creek?

The structure is 33 ft (10.1 m) long with a longest span of 10 ft (3 m) and a deck 16 ft wide.

Who owns Nfa A333 over Purtle Creek?

It is owned by the County Highway Agency.