US Bridges

Nfa A396 over Mabel ST (nfa A396)

Fair

Hamilton County, Tennessee · 0.7 Mi. E of SR-8 Jct. · Structure no. 33SR0580009

Built
1971
54 years old
Condition
Fair
inspected June 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
148 ft
3 main spans
Daily traffic
14,706
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa A396 over Mabel ST (nfa A396) is a prestressed concrete continuous box beam or girders - single or spread carrying Nfa A396 over Mabel ST (nfa A396) in Hamilton County, Tennessee. It was built in 1971, so it is 54 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 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 14,706 vehicles a day, roughly 9% of them trucks, projected to reach 23,530 by 2042. The structure is 148 ft (45.1 m) long and 90 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesNfa A396
CrossesMabel ST (nfa A396)
Location0.7 Mi. E of SR-8 Jct.
RouteCity Street 5395
CountyHamilton County
StateTennessee
Coordinates35.05158, -85.2996
Functional classUrban Other Principal Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.7 US tons
Inventory rating34.7 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length148 ft (45.1 m)
Longest span66 ft (20.1 m)
Deck width90 ft (27.4 m)
Roadway width88 ft (26.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,706 (2021)
Projected traffic23,530 by 2042
Trucks9%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Nfa A396 over Mabel ST (nfa A396) built?

It was built in 1971, making it 54 years old in 2025.

What condition is Nfa A396 over Mabel ST (nfa A396) 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 June 2023.

How much traffic does Nfa A396 over Mabel ST (nfa A396) carry?

About 14,706 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is Nfa A396 over Mabel ST (nfa A396)?

The structure is 148 ft (45.1 m) long with a longest span of 66 ft (20.1 m) and a deck 90 ft wide.

Who owns Nfa A396 over Mabel ST (nfa A396)?

It is owned by the City or Municipal Highway Agency.