US Bridges

Nfa 1429 (sa 1004) over Elk River

PoorClosed to traffic

Carter County, Tennessee · S of SR159-NEAR State LN · Structure no. 10S25200001

Built
1957
68 years old
Condition
Poor
inspected August 2023
Type
Tee Beam
Concrete
Length
228 ft
7 main spans
Daily traffic
276
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 1429 (sa 1004) over Elk River is a concrete tee beam carrying Nfa 1429 (sa 1004) over Elk River in Carter County, Tennessee. It was built in 1957, so it is 68 years old, older than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 0 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. Its operating status is: closed to all traffic.

It carries about 276 vehicles a day, roughly 3% of them trucks, projected to reach 205 by 2042. The structure is 228 ft (69.5 m) long and 29 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

CarriesNfa 1429 (sa 1004)
CrossesElk River
LocationS of SR159-NEAR State LN
RouteCounty Highway 1429
Coordinates36.2584, -81.98358
Functional classRural Minor Collector

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
Deck0 FailedOut of service and beyond corrective action.
Superstructure0 FailedOut of service and beyond corrective action.
Substructure0 FailedOut of service and beyond corrective action.
Channel and channel protection0 FailedOut of service and beyond corrective action.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusClosed to all traffic
ScourScour critical; bridge has failed and is closed
Structural evaluation0: Immediate repair necessary to put back in service
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy0: Immediate repair necessary to put back in service
Approach roadway alignment0: Immediate repair necessary to put back in service
Operating rating0 US tons
Inventory rating0 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans7
Design loadH 15
Structure length228 ft (69.5 m)
Longest span29 ft (8.7 m)
Deck width29 ft (8.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic276 (2021)
Projected traffic205 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.2 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 1429 (sa 1004) over Elk River built?

It was built in 1957, making it 68 years old in 2025.

What condition is Nfa 1429 (sa 1004) over Elk 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 August 2023.

How much traffic does Nfa 1429 (sa 1004) over Elk River carry?

About 276 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 1429 (sa 1004) over Elk River?

The structure is 228 ft (69.5 m) long with a longest span of 29 ft (8.7 m) and a deck 29 ft wide.

Who owns Nfa 1429 (sa 1004) over Elk River?

It is owned by the County Highway Agency.