US Bridges

Nfa A104 over Clear Creek

Fair

Morgan County, Tennessee · 2 M S of SR62-SR298 JCT · Structure no. 650A1040001

Built
1970
55 years old
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
243 ft
3 main spans
Daily traffic
80
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A104 over Clear Creek is a steel continuous stringer/multi-beam or girder carrying Nfa A104 over Clear Creek in Morgan County, Tennessee. It was built in 1970, so it is 55 years old, older 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 80 vehicles a day, roughly 2% of them trucks, projected to reach 128 by 2042. The structure is 243 ft (74.1 m) long and 28 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesNfa A104
CrossesClear Creek
Location2 M S of SR62-SR298 JCT
RouteCounty Highway 104
CountyMorgan County
StateTennessee
Coordinates36.10207, -84.71727
Functional classRural 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating41.8 US tons
Inventory rating24.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length243 ft (74.1 m)
Longest span92 ft (28 m)
Deck width28 ft (8.4 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic80 (2020)
Projected traffic128 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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$1.5 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A104 over Clear Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is Nfa A104 over Clear Creek 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 February 2023.

How much traffic does Nfa A104 over Clear Creek carry?

About 80 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A104 over Clear Creek?

The structure is 243 ft (74.1 m) long with a longest span of 92 ft (28 m) and a deck 28 ft wide.

Who owns Nfa A104 over Clear Creek?

It is owned by the County Highway Agency.