US Bridges

Nfa C140 over Conner Creek

Fair

Knox County, Tennessee · 4.8 M NW JCT I40 & SR 131 · Structure no. 470C1400001

Built
1980
45 years old
Condition
Fair
inspected May 2024
Type
Channel Beam
Concrete
Length
22 ft
1 main span
Daily traffic
90
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa C140 over Conner Creek is a concrete channel beam carrying Nfa C140 over Conner Creek in Knox County, Tennessee. It was built in 1980, so it is 45 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 90 vehicles a day, roughly 2% of them trucks, projected to reach 144 by 2038. The structure is 22 ft (6.7 m) long and 18 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesNfa C140
CrossesConner Creek
Location4.8 M NW JCT I40 & SR 131
RouteCounty Highway 140
CountyKnox County
StateTennessee
Coordinates35.932, -84.22543
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.
Superstructure7 GoodSome minor problems.
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 inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating39.7 US tons
Inventory rating26.8 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadUnknown
Structure length22 ft (6.7 m)
Longest span20 ft (6.1 m)
Deck width18 ft (5.5 m)
Roadway width17 ft (5.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic90 (2020)
Projected traffic144 by 2038
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$92,000 (2018 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa C140 over Conner Creek built?

It was built in 1980, making it 45 years old in 2025.

What condition is Nfa C140 over Conner 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 May 2024.

How much traffic does Nfa C140 over Conner Creek carry?

About 90 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa C140 over Conner Creek?

The structure is 22 ft (6.7 m) long with a longest span of 20 ft (6.1 m) and a deck 18 ft wide.

Who owns Nfa C140 over Conner Creek?

It is owned by the County Highway Agency.