US Bridges

SR1644 over North Fork New River

Fair

Ashe County, North Carolina · 100 FT.E.JCT.NC194 · Structure no. 000000000090507

Built
1964
61 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
241 ft
4 main spans
Daily traffic
130
2015 count
Owner
State
State Highway Agency

About this bridge

SR1644 over North Fork New River is a steel stringer/multi-beam or girder carrying SR1644 over North Fork New River in Ashe County, North Carolina. It was built in 1964, so it is 61 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 5 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 130 vehicles a day, roughly 6% of them trucks, projected to reach 260 by 2040. The structure is 241 ft (73.4 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesSR1644
CrossesNorth Fork New River
Location100 FT.E.JCT.NC194
RouteState Highway 1644
CountyAshe County
StateNorth Carolina
Coordinates36.47764, -81.50485
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.9 US tons
Inventory rating30 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length241 ft (73.4 m)
Longest span60 ft (18.2 m)
Deck width28 ft (8.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic130 (2015)
Projected traffic260 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 SR1644 over North Fork New River built?

It was built in 1964, making it 61 years old in 2025.

What condition is SR1644 over North Fork New River 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 May 2024.

How much traffic does SR1644 over North Fork New River carry?

About 130 vehicles per day (2015 count), of which roughly 6% are trucks.

How long is SR1644 over North Fork New River?

The structure is 241 ft (73.4 m) long with a longest span of 60 ft (18.2 m) and a deck 28 ft wide.

Who owns SR1644 over North Fork New River?

It is owned by the State Highway Agency.