US Bridges

FAU 3556 350035R over Abandoned Spur Line

Poor

Hamilton County, Tennessee · In Chattanooga · Structure no. 33035560009

Built
1959
66 years old
Condition
Poor
inspected January 2025
Type
Tee Beam
Concrete
Length
129 ft
3 main spans
Daily traffic
16,893
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

FAU 3556 350035R over Abandoned Spur Line is a concrete tee beam carrying FAU 3556 350035R over Abandoned Spur Line in Hamilton County, Tennessee. It was built in 1959, so it is 66 years old, older than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 16,893 vehicles a day, roughly 13% of them trucks, projected to reach 27,029 by 2042. The structure is 129 ft (39.3 m) long and 34 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesFAU 3556 350035R
CrossesAbandoned Spur Line
LocationIn Chattanooga
RouteCity Street 3556
CountyHamilton County
StateTennessee
Coordinates35.05609, -85.20741
Functional classUrban Other Principal Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.3 US tons
Inventory rating38.3 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length129 ft (39.3 m)
Longest span43 ft (13.1 m)
Deck width34 ft (10.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,893 (2021)
Projected traffic27,029 by 2042
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesOther
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.3 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was FAU 3556 350035R over Abandoned Spur Line built?

It was built in 1959, making it 66 years old in 2025.

What condition is FAU 3556 350035R over Abandoned Spur Line in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in January 2025.

How much traffic does FAU 3556 350035R over Abandoned Spur Line carry?

About 16,893 vehicles per day (2021 count), of which roughly 13% are trucks.

How long is FAU 3556 350035R over Abandoned Spur Line?

The structure is 129 ft (39.3 m) long with a longest span of 43 ft (13.1 m) and a deck 34 ft wide.

Who owns FAU 3556 350035R over Abandoned Spur Line?

It is owned by the City or Municipal Highway Agency.