US Bridges

NC88 over Rock Creek

Good

Ashe County, North Carolina · 15 FT.W.JCT.SR1306 · Structure no. 000000000090018

Built
1994
31 years old
Condition
Good
inspected July 2024
Type
Culvert
Concrete
Length
32 ft
1 main span
Daily traffic
550
2022 count
Owner
State
State Highway Agency

About this bridge

NC88 over Rock Creek is a concrete culvert carrying NC88 over Rock Creek in Ashe County, North Carolina. It was built in 1994, so it is 31 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 550 vehicles a day, roughly 7% of them trucks, projected to reach 1,100 by 2040. The structure is 32 ft (9.7 m) long. If it were closed, the detour would be 3.7 mi (6 km).

CarriesNC88
CrossesRock Creek
Location15 FT.W.JCT.SR1306
RouteState Highway 88
Coordinates36.42087, -81.66576
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46 US tons
Inventory rating35.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20 + Mod
Structure length32 ft (9.7 m)
Longest span30 ft (9.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic550 (2022)
Projected traffic1,100 by 2040
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 NC88 over Rock Creek built?

It was built in 1994, making it 31 years old in 2025.

What condition is NC88 over Rock 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 July 2024.

How much traffic does NC88 over Rock Creek carry?

About 550 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is NC88 over Rock Creek?

The structure is 32 ft (9.7 m) long with a longest span of 30 ft (9.1 m).

Who owns NC88 over Rock Creek?

It is owned by the State Highway Agency.