US Bridges

NC226 over Rockhouse Creek

Good

Mitchell County, North Carolina · .1 MI.N.JCT.SR1106 · Structure no. 000000001210007

Built
1955
70 years old
Condition
Good
inspected December 2023
Type
Culvert
Concrete Continuous
Length
21 ft
2 main spans
Daily traffic
11,500
2022 count
Owner
State
State Highway Agency

About this bridge

NC226 over Rockhouse Creek is a concrete continuous culvert carrying NC226 over Rockhouse Creek in Mitchell County, North Carolina. It was built in 1955, so it is 70 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 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 11,500 vehicles a day, roughly 7% of them trucks, projected to reach 23,000 by 2040. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 0.6 mi (1 km).

CarriesNC226
CrossesRockhouse Creek
Location.1 MI.N.JCT.SR1106
RouteState Highway 226
Coordinates35.88728, -82.06204
Functional classRural Major Collector

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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38.9 US tons
Inventory rating30 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 15
Structure length21 ft (6.4 m)
Longest span9 ft (2.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,500 (2022)
Projected traffic23,000 by 2040
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 NC226 over Rockhouse Creek built?

It was built in 1955, making it 70 years old in 2025.

What condition is NC226 over Rockhouse 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 December 2023.

How much traffic does NC226 over Rockhouse Creek carry?

About 11,500 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is NC226 over Rockhouse Creek?

The structure is 21 ft (6.4 m) long with a longest span of 9 ft (2.7 m).

Who owns NC226 over Rockhouse Creek?

It is owned by the State Highway Agency.