US Bridges

Nfa A329 over Murfrees Fork Creek

Good

Williamson County, Tennessee · 3.4 MI SW JCT SR6&SR248 · Structure no. 940A3290001

Built
1975
50 years old
Condition
Good
inspected July 2023
Type
Culvert
Concrete Continuous
Length
32 ft
2 main spans
Daily traffic
320
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa A329 over Murfrees Fork Creek is a concrete continuous culvert carrying Nfa A329 over Murfrees Fork Creek in Williamson County, Tennessee. It was built in 1975, so it is 50 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 320 vehicles a day, roughly 2% of them trucks, projected to reach 512 by 2041. The structure is 32 ft (9.8 m) long and 24 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesNfa A329
CrossesMurfrees Fork Creek
Location3.4 MI SW JCT SR6&SR248
RouteCity Street 329
Coordinates35.80705, -86.93246
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length32 ft (9.8 m)
Longest span15 ft (4.6 m)
Deck width24 ft (7.3 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic320 (2020)
Projected traffic512 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$101,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A329 over Murfrees Fork Creek built?

It was built in 1975, making it 50 years old in 2025.

What condition is Nfa A329 over Murfrees Fork 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 July 2023.

How much traffic does Nfa A329 over Murfrees Fork Creek carry?

About 320 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A329 over Murfrees Fork Creek?

The structure is 32 ft (9.8 m) long with a longest span of 15 ft (4.6 m) and a deck 24 ft wide.

Who owns Nfa A329 over Murfrees Fork Creek?

It is owned by the City or Municipal Highway Agency.