US Bridges

US64 over Knob Creek

Fair

Rutherford County, North Carolina · .5 MI.E.JCT.SR1345 · Structure no. 000000001610107

Built
1921
104 years old, rebuilt 1939
Condition
Fair
inspected February 2025
Type
Tee Beam
Concrete
Length
37 ft
1 main span
Daily traffic
3,900
2021 count
Owner
State
State Highway Agency

About this bridge

US64 over Knob Creek is a concrete tee beam carrying US64 over Knob Creek in Rutherford County, North Carolina. It was built in 1921 and reconstructed in 1939, so it is 104 years old, older than the North Carolina average of 38.7 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 3,900 vehicles a day, roughly 8% of them trucks, projected to reach 7,800 by 2040. The structure is 37 ft (11.2 m) long and 34 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

CarriesUS64
CrossesKnob Creek
Location.5 MI.E.JCT.SR1345
RouteU.S. Route 64
Coordinates35.42356, -82.07912
Functional classRural Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.9 US tons
Inventory rating32 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length37 ft (11.2 m)
Longest span36 ft (10.9 m)
Deck width34 ft (10.4 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,900 (2021)
Projected traffic7,800 by 2040
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5.6 mi (9 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US64 over Knob Creek built?

It was built in 1921, making it 104 years old in 2025. It was reconstructed in 1939.

What condition is US64 over Knob 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 February 2025.

How much traffic does US64 over Knob Creek carry?

About 3,900 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is US64 over Knob Creek?

The structure is 37 ft (11.2 m) long with a longest span of 36 ft (10.9 m) and a deck 34 ft wide.

Who owns US64 over Knob Creek?

It is owned by the State Highway Agency.