US Bridges

Nfa D031 over North Chickamauga Creek

Fair

Hamilton County, Tennessee · 2 MI West of SR 153 · Structure no. 330D0310001

Built
1996
29 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
130 ft
2 main spans
Daily traffic
2,410
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa D031 over North Chickamauga Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying Nfa D031 over North Chickamauga Creek in Hamilton County, Tennessee. It was built in 1996, so it is 29 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 6 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 2,410 vehicles a day, roughly 2% of them trucks, projected to reach 3,856 by 2042. The structure is 130 ft (39.6 m) long and 36 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesNfa D031
CrossesNorth Chickamauga Creek
Location2 MI West of SR 153
RouteCity Street 31
Coordinates35.14613, -85.22705
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating40 US tons
Inventory rating30.8 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans2
Design loadHS 20
Structure length130 ft (39.6 m)
Longest span65 ft (19.8 m)
Deck width36 ft (11.1 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,410 (2020)
Projected traffic3,856 by 2042
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa D031 over North Chickamauga Creek built?

It was built in 1996, making it 29 years old in 2025.

What condition is Nfa D031 over North Chickamauga 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 2024.

How much traffic does Nfa D031 over North Chickamauga Creek carry?

About 2,410 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa D031 over North Chickamauga Creek?

The structure is 130 ft (39.6 m) long with a longest span of 65 ft (19.8 m) and a deck 36 ft wide.

Who owns Nfa D031 over North Chickamauga Creek?

It is owned by the City or Municipal Highway Agency.