US Bridges

FAU 4150 over Chattanooga Creek

Good

Hamilton County, Tennessee · .17 MI Ga-Tn State Line · Structure no. 330A7680001

Built
1985
40 years old
Condition
Good
inspected January 2025
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
92 ft
2 main spans
Daily traffic
1,388
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

FAU 4150 over Chattanooga Creek is a prestressed concrete continuous box beam or girders - single or spread carrying FAU 4150 over Chattanooga Creek in Hamilton County, Tennessee. It was built in 1985, so it is 40 years old, younger than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,388 vehicles a day, roughly 1% of them trucks, projected to reach 2,221 by 2042. The structure is 92 ft (28 m) long and 28 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesFAU 4150
CrossesChattanooga Creek
Location.17 MI Ga-Tn State Line
RouteCity Street 4150
CountyHamilton County
StateTennessee
Coordinates34.98633, -85.32706
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans2
Design loadHS 20
Structure length92 ft (28 m)
Longest span46 ft (14 m)
Deck width28 ft (8.6 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,388 (2021)
Projected traffic2,221 by 2042
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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$746,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FAU 4150 over Chattanooga Creek built?

It was built in 1985, making it 40 years old in 2025.

What condition is FAU 4150 over Chattanooga Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in January 2025.

How much traffic does FAU 4150 over Chattanooga Creek carry?

About 1,388 vehicles per day (2021 count), of which roughly 1% are trucks.

How long is FAU 4150 over Chattanooga Creek?

The structure is 92 ft (28 m) long with a longest span of 46 ft (14 m) and a deck 28 ft wide.

Who owns FAU 4150 over Chattanooga Creek?

It is owned by the City or Municipal Highway Agency.