US Bridges

Nfa A235 over Conasauga Creek

Good

McMinn County, Tennessee · 3 MI West of US411 · Structure no. 540A2350001

Built
1988
37 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
196 ft
3 main spans
Daily traffic
560
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A235 over Conasauga Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying Nfa A235 over Conasauga Creek in McMinn County, Tennessee. It was built in 1988, so it is 37 years old, younger than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 560 vehicles a day, roughly 2% of them trucks, projected to reach 896 by 2042. The structure is 196 ft (59.6 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesNfa A235
CrossesConasauga Creek
Location3 MI West of US411
RouteCounty Highway 235
Coordinates35.27563, -84.56851
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.8 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length196 ft (59.6 m)
Longest span70 ft (21.2 m)
Deck width24 ft (7.4 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic560 (2020)
Projected traffic896 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A235 over Conasauga Creek built?

It was built in 1988, making it 37 years old in 2025.

What condition is Nfa A235 over Conasauga Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2023.

How much traffic does Nfa A235 over Conasauga Creek carry?

About 560 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A235 over Conasauga Creek?

The structure is 196 ft (59.6 m) long with a longest span of 70 ft (21.2 m) and a deck 24 ft wide.

Who owns Nfa A235 over Conasauga Creek?

It is owned by the County Highway Agency.