US Bridges

Nfa 1928 (sa 9405) over Murfrees Fork Creek

FairPosted for load

Williamson County, Tennessee · 4.4 MI SW JCT SR6&SR248 · Structure no. 94019280001

Built
1950
75 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
43 ft
1 main span
Daily traffic
1,039
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa 1928 (sa 9405) over Murfrees Fork Creek is a steel stringer/multi-beam or girder carrying Nfa 1928 (sa 9405) over Murfrees Fork Creek in Williamson 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 fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 1,039 vehicles a day, roughly 5% of them trucks, projected to reach 1,662 by 2042. The structure is 43 ft (13.1 m) long and 24 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

CarriesNfa 1928 (sa 9405)
CrossesMurfrees Fork Creek
Location4.4 MI SW JCT SR6&SR248
RouteCity Street 1928
Coordinates35.82742, -86.96222
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating21.8 US tons
Inventory rating16.8 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length43 ft (13.1 m)
Longest span40 ft (12.2 m)
Deck width24 ft (7.3 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,039 (2021)
Projected traffic1,662 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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 with deck rehabilitation or replacement
Estimated improvement cost$229,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 1928 (sa 9405) over Murfrees Fork Creek built?

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

What condition is Nfa 1928 (sa 9405) over Murfrees Fork Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in May 2023.

How much traffic does Nfa 1928 (sa 9405) over Murfrees Fork Creek carry?

About 1,039 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is Nfa 1928 (sa 9405) over Murfrees Fork Creek?

The structure is 43 ft (13.1 m) long with a longest span of 40 ft (12.2 m) and a deck 24 ft wide.

Who owns Nfa 1928 (sa 9405) over Murfrees Fork Creek?

It is owned by the City or Municipal Highway Agency.