US Bridges

Nfa A337 over W Fork Murfees Fork CR

Good

Williamson County, Tennessee · 4.8 MI NW JCT SR6&MAURY · Structure no. 940A3370001

Built
2023
2 years old
Condition
Good
inspected May 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
50 ft
1 main span
Daily traffic
420
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A337 over W Fork Murfees Fork CR is a prestressed concrete box beam or girders - single or spread carrying Nfa A337 over W Fork Murfees Fork CR in Williamson County, Tennessee. It was built in 2023, so it is 2 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 420 vehicles a day, roughly 2% of them trucks, projected to reach 672 by 2042. The structure is 50 ft (15.2 m) long and 28 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesNfa A337
CrossesW Fork Murfees Fork CR
Location4.8 MI NW JCT SR6&MAURY
RouteCounty Highway 337
CountyWilliamson County
StateTennessee
Coordinates35.80933, -86.98285
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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
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 alignment6: Equal to present minimum criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length50 ft (15.2 m)
Longest span42 ft (12.9 m)
Deck width28 ft (8.6 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic420 (2020)
Projected traffic672 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$467,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A337 over W Fork Murfees Fork CR built?

It was built in 2023, making it 2 years old in 2025.

What condition is Nfa A337 over W Fork Murfees Fork CR 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 A337 over W Fork Murfees Fork CR carry?

About 420 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A337 over W Fork Murfees Fork CR?

The structure is 50 ft (15.2 m) long with a longest span of 42 ft (12.9 m) and a deck 28 ft wide.

Who owns Nfa A337 over W Fork Murfees Fork CR?

It is owned by the County Highway Agency.