US Bridges

FAU 3556 350034J over CSX Railroad

Fair

Hamilton County, Tennessee · In Chattanooga · Structure no. 33035560011

Built
1959
66 years old
Condition
Fair
inspected June 2023
Type
Tee Beam
Concrete
Length
144 ft
3 main spans
Daily traffic
16,893
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

FAU 3556 350034J over CSX Railroad is a concrete tee beam carrying FAU 3556 350034J over CSX Railroad 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 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 16,893 vehicles a day, roughly 13% of them trucks, projected to reach 27,029 by 2042. The structure is 144 ft (43.9 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 350034J
CrossesCSX Railroad
LocationIn Chattanooga
RouteCity Street 3556
CountyHamilton County
StateTennessee
Coordinates35.0557, -85.20361
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length144 ft (43.9 m)
Longest span48 ft (14.6 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
CrossesRailroad
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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$574,000 (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was FAU 3556 350034J over CSX Railroad built?

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

What condition is FAU 3556 350034J over CSX Railroad 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 FAU 3556 350034J over CSX Railroad carry?

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

How long is FAU 3556 350034J over CSX Railroad?

The structure is 144 ft (43.9 m) long with a longest span of 48 ft (14.6 m) and a deck 34 ft wide.

Who owns FAU 3556 350034J over CSX Railroad?

It is owned by the City or Municipal Highway Agency.