US Bridges

Nfa A321 over Mcelroy Creek

Fair

Rutherford County, Tennessee · 3.4 MI NW JCT SR99&CANNON · Structure no. 750A3210001

Built
1975
50 years old, rebuilt 1981
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
34 ft
2 main spans
Daily traffic
10
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A321 over Mcelroy Creek is a steel continuous stringer/multi-beam or girder carrying Nfa A321 over Mcelroy Creek in Rutherford County, Tennessee. It was built in 1975 and reconstructed in 1981, 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 fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 10 vehicles a day, roughly 2% of them trucks, projected to reach 16 by 2042. The structure is 34 ft (10.4 m) long and 15 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesNfa A321
CrossesMcelroy Creek
Location3.4 MI NW JCT SR99&CANNON
RouteCounty Highway 0A321
CountyRutherford County
StateTennessee
Coordinates35.7737, -86.24192
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
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 rating30.3 US tons
Inventory rating23.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length34 ft (10.4 m)
Longest span16 ft (4.9 m)
Deck width15 ft (4.6 m)
Roadway width11 ft (3.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2020)
Projected traffic16 by 2042
Trucks2%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$155,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A321 over Mcelroy Creek built?

It was built in 1975, making it 50 years old in 2025. It was reconstructed in 1981.

What condition is Nfa A321 over Mcelroy 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 August 2024.

How much traffic does Nfa A321 over Mcelroy Creek carry?

About 10 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A321 over Mcelroy Creek?

The structure is 34 ft (10.4 m) long with a longest span of 16 ft (4.9 m) and a deck 15 ft wide.

Who owns Nfa A321 over Mcelroy Creek?

It is owned by the County Highway Agency.