US Bridges

Nfa 1369 (sa 9020) over Watauga River

Fair

Washington County, Tennessee · E Off US11E on Co. Li. · Structure no. 90013690001

Built
1985
40 years old
Condition
Fair
inspected June 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
607 ft
6 main spans
Daily traffic
850
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa 1369 (sa 9020) over Watauga River is a prestressed concrete continuous box beam or girders - single or spread carrying Nfa 1369 (sa 9020) over Watauga River in Washington County, Tennessee. It was built in 1985, so it is 40 years old, younger than the Tennessee average of 47.4 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 850 vehicles a day, roughly 1% of them trucks, projected to reach 1,360 by 2042. The structure is 607 ft (185.1 m) long and 28 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesNfa 1369 (sa 9020)
CrossesWatauga River
LocationE Off US11E on Co. Li.
RouteCounty Highway 900
CountyWashington County
StateTennessee
Coordinates36.39607, -82.34617
Functional classUrban 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 protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating45 US tons
Inventory rating30.8 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans6
Design loadHS 20
Structure length607 ft (185.1 m)
Longest span102 ft (31.2 m)
Deck width28 ft (8.5 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic850 (2020)
Projected traffic1,360 by 2042
Trucks1%
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

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedDeck rehabilitation with only incidental widening
Estimated improvement cost$893,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 1369 (sa 9020) over Watauga River built?

It was built in 1985, making it 40 years old in 2025.

What condition is Nfa 1369 (sa 9020) over Watauga 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 June 2024.

How much traffic does Nfa 1369 (sa 9020) over Watauga River carry?

About 850 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is Nfa 1369 (sa 9020) over Watauga River?

The structure is 607 ft (185.1 m) long with a longest span of 102 ft (31.2 m) and a deck 28 ft wide.

Who owns Nfa 1369 (sa 9020) over Watauga River?

It is owned by the County Highway Agency.