US Bridges

SR1200 over Watauga River

Poor

Watauga County, North Carolina · .2 MI.N.JCT.US321 · Structure no. 000000001890271

Built
2005
20 years old
Condition
Poor
inspected June 2021
Type
Slab
Prestressed Concrete
Length
108 ft
2 main spans
Daily traffic
400
2022 count
Owner
State
State Highway Agency

About this bridge

SR1200 over Watauga River is a prestressed concrete slab carrying SR1200 over Watauga River in Watauga County, North Carolina. It was built in 2005, so it is 20 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 400 vehicles a day, roughly 6% of them trucks, projected to reach 800 by 2040. The structure is 108 ft (32.9 m) long and 30 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesSR1200
CrossesWatauga River
Location.2 MI.N.JCT.US321
RouteState Highway 1200
Coordinates36.26925, -81.88406
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating65.9 US tons
Inventory rating38.9 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20 + Mod
Structure length108 ft (32.9 m)
Longest span53 ft (16.1 m)
Deck width30 ft (9.2 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (2022)
Projected traffic800 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 SR1200 over Watauga River built?

It was built in 2005, making it 20 years old in 2025.

What condition is SR1200 over Watauga River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in June 2021.

How much traffic does SR1200 over Watauga River carry?

About 400 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is SR1200 over Watauga River?

The structure is 108 ft (32.9 m) long with a longest span of 53 ft (16.1 m) and a deck 30 ft wide.

Who owns SR1200 over Watauga River?

It is owned by the State Highway Agency.