US Bridges

NC88 over Roan Creek

Fair

Ashe County, North Carolina · .3 MI.W.JCT.SR1597 · Structure no. 000000000090526

Built
1960
65 years old
Condition
Fair
inspected December 2023
Type
Culvert
Concrete Continuous
Length
22 ft
3 main spans
Daily traffic
1,700
2022 count
Owner
State
State Highway Agency

About this bridge

NC88 over Roan Creek is a concrete continuous culvert carrying NC88 over Roan Creek in Ashe County, North Carolina. It was built in 1960, so it is 65 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 1,700 vehicles a day, roughly 7% of them trucks, projected to reach 3,400 by 2040. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesNC88
CrossesRoan Creek
Location.3 MI.W.JCT.SR1597
RouteState Highway 88
CountyAshe County
StateNorth Carolina
Coordinates36.39837, -81.37006
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
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 rating46 US tons
Inventory rating35.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20 + Mod
Structure length22 ft (6.7 m)
Longest span7 ft (2.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,700 (2022)
Projected traffic3,400 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 Roan Creek built?

It was built in 1960, making it 65 years old in 2025.

What condition is NC88 over Roan 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 December 2023.

How much traffic does NC88 over Roan Creek carry?

About 1,700 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is NC88 over Roan Creek?

The structure is 22 ft (6.7 m) long with a longest span of 7 ft (2.1 m).

Who owns NC88 over Roan Creek?

It is owned by the State Highway Agency.