US Bridges

SR1598 over Watauga River

Good

Watauga County, North Carolina · 0.25 MI.S.JCT.NC105 · Structure no. 000000001890321

Built
2009
16 years old
Condition
Good
inspected August 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
100 ft
1 main span
Daily traffic
80
1996 count
Owner
State
State Highway Agency

About this bridge

SR1598 over Watauga River is a prestressed concrete box beam or girders - multiple carrying SR1598 over Watauga River in Watauga County, North Carolina. It was built in 2009, so it is 16 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 80 vehicles a day, projected to reach 160 by 2040. The structure is 100 ft (30.4 m) long and 21 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesSR1598
CrossesWatauga River
Location0.25 MI.S.JCT.NC105
RouteState Highway 1598
Coordinates36.13268, -81.8152
Functional classRural Local

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 inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating88 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 25 or greater
Structure length100 ft (30.4 m)
Longest span96 ft (29.2 m)
Deck width21 ft (6.4 m)
Roadway width19 ft (5.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic80 (1996)
Projected traffic160 by 2040
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 SR1598 over Watauga River built?

It was built in 2009, making it 16 years old in 2025.

What condition is SR1598 over Watauga River 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 August 2023.

How much traffic does SR1598 over Watauga River carry?

About 80 vehicles per day (1996 count).

How long is SR1598 over Watauga River?

The structure is 100 ft (30.4 m) long with a longest span of 96 ft (29.2 m) and a deck 21 ft wide.

Who owns SR1598 over Watauga River?

It is owned by the State Highway Agency.