US Bridges

Nfa A474 over Sequatchie River

PoorPosted for load

Bledsoe County, Tennessee · In Pikeville City Limits · Structure no. 04SR0300005

Built
1925
100 years old
Condition
Poor
inspected July 2024
Type
Tee Beam
Concrete
Length
148 ft
4 main spans
Daily traffic
1,090
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa A474 over Sequatchie River is a concrete tee beam carrying Nfa A474 over Sequatchie River in Bledsoe County, Tennessee. It was built in 1925, so it is 100 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 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. Its operating status is: posted for load restriction.

It carries about 1,090 vehicles a day, roughly 6% of them trucks, projected to reach 1,744 by 2042. The structure is 148 ft (45.1 m) long and 21 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesNfa A474
CrossesSequatchie River
LocationIn Pikeville City Limits
RouteCounty Highway 474
CountyBledsoe County
StateTennessee
Coordinates35.59696, -85.19096
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating21.8 US tons
Inventory rating16.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 15
Structure length148 ft (45.1 m)
Longest span37 ft (11.3 m)
Deck width21 ft (6.4 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deck148 ft (45.1 m)

Traffic and service

Average daily traffic1,090 (2020)
Projected traffic1,744 by 2042
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.1 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A474 over Sequatchie River built?

It was built in 1925, making it 100 years old in 2025.

What condition is Nfa A474 over Sequatchie 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 July 2024.

How much traffic does Nfa A474 over Sequatchie River carry?

About 1,090 vehicles per day (2020 count), of which roughly 6% are trucks.

How long is Nfa A474 over Sequatchie River?

The structure is 148 ft (45.1 m) long with a longest span of 37 ft (11.3 m) and a deck 21 ft wide.

Who owns Nfa A474 over Sequatchie River?

It is owned by the City or Municipal Highway Agency.