US Bridges

FAU 8 over Tn River & FAU 5395

PoorPosted for load

Hamilton County, Tennessee · Market Street Bridge · Structure no. 33SR0080007

Built
1917
108 years old, rebuilt 2007
Condition
Poor
inspected June 2023
Type
Movable - Bascule
Steel
Length
2,000 ft
1 main span
Daily traffic
26,697
2021 count
Owner
State
State Highway Agency

About this bridge

FAU 8 over Tn River & FAU 5395 is a steel movable - bascule carrying FAU 8 over Tn River & FAU 5395 in Hamilton County, Tennessee. It was built in 1917 and reconstructed in 2007, so it is 108 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. Its operating status is: posted for load restriction.

It carries about 26,697 vehicles a day, roughly 4% of them trucks, projected to reach 42,715 by 2042. The structure is 2,000 ft (609.6 m) long and 56 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesFAU 8
CrossesTn River & FAU 5395
LocationMarket Street Bridge
RouteU.S. Route 27
CountyHamilton County
StateTennessee
Coordinates35.05655, -85.3096
Functional classUrban Minor 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
Deck7 GoodSome minor problems.
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.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating33.6 US tons
Inventory rating26.1 US tons

Structure

Structure typeMovable - Bascule
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+16 approach)
Design loadH 15
Structure length2,000 ft (609.6 m)
Longest span359 ft (109.4 m)
Deck width56 ft (17.1 m)
Roadway width36 ft (11 m)
Vertical clearance over deck16 ft (5 m)

Traffic and service

Average daily traffic26,697 (2021)
Projected traffic42,715 by 2042
Trucks4%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway and waterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusListed on the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$59.8 million (2022 estimate)
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was FAU 8 over Tn River & FAU 5395 built?

It was built in 1917, making it 108 years old in 2025. It was reconstructed in 2007.

What condition is FAU 8 over Tn River & FAU 5395 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 June 2023.

How much traffic does FAU 8 over Tn River & FAU 5395 carry?

About 26,697 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is FAU 8 over Tn River & FAU 5395?

The structure is 2,000 ft (609.6 m) long with a longest span of 359 ft (109.4 m) and a deck 56 ft wide.

Who owns FAU 8 over Tn River & FAU 5395?

It is owned by the State Highway Agency.