US Bridges

NC109 over Rocky Creek

Good

Montgomery County, North Carolina · 0.2 Mi. S. Jct. NC24/27 · Structure no. 000000001230028

Built
2011
14 years old
Condition
Good
inspected April 2021
Type
Stringer/Multi-beam or Girder
Steel
Length
116 ft
1 main span
Daily traffic
6,100
2019 count
Owner
State
State Highway Agency

About this bridge

NC109 over Rocky Creek is a steel stringer/multi-beam or girder carrying NC109 over Rocky Creek in Montgomery County, North Carolina. It was built in 2011, so it is 14 years old, younger 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 6,100 vehicles a day, roughly 7% of them trucks, projected to reach 12,200 by 2040. The structure is 116 ft (35.3 m) long and 33 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesNC109
CrossesRocky Creek
Location0.2 Mi. S. Jct. NC24/27
RouteState Highway 109
CountyMontgomery County
StateNorth Carolina
Coordinates35.31765, -79.9473
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79.9 US tons
Inventory rating48 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length116 ft (35.3 m)
Longest span112 ft (34.1 m)
Deck width33 ft (10.1 m)
Roadway width29 ft (8.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,100 (2019)
Projected traffic12,200 by 2040
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was NC109 over Rocky Creek built?

It was built in 2011, making it 14 years old in 2025.

What condition is NC109 over Rocky 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 April 2021.

How much traffic does NC109 over Rocky Creek carry?

About 6,100 vehicles per day (2019 count), of which roughly 7% are trucks.

How long is NC109 over Rocky Creek?

The structure is 116 ft (35.3 m) long with a longest span of 112 ft (34.1 m) and a deck 33 ft wide.

Who owns NC109 over Rocky Creek?

It is owned by the State Highway Agency.