US Bridges

FAU 3749 over Big Creek

Fair

Campbell County, Tennessee · S of SR 63 - at County LN · Structure no. 07037490001

Built
1991
34 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
107 ft
2 main spans
Daily traffic
691
2021 count
Owner
County
County Highway Agency

About this bridge

FAU 3749 over Big Creek is a prestressed concrete stringer/multi-beam or girder carrying FAU 3749 over Big Creek in Campbell County, Tennessee. It was built in 1991, so it is 34 years old, younger 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 691 vehicles a day, roughly 3% of them trucks, projected to reach 1,106 by 2042. The structure is 107 ft (32.6 m) long and 32 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesFAU 3749
CrossesBig Creek
LocationS of SR 63 - at County LN
RouteCounty Highway 3749
CountyCampbell County
StateTennessee
Coordinates36.3875, -84.12521
Functional classUrban Minor 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating57.5 US tons
Inventory rating33.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length107 ft (32.6 m)
Longest span52 ft (15.9 m)
Deck width32 ft (9.8 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic691 (2021)
Projected traffic1,106 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FAU 3749 over Big Creek built?

It was built in 1991, making it 34 years old in 2025.

What condition is FAU 3749 over Big Creek 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 April 2024.

How much traffic does FAU 3749 over Big Creek carry?

About 691 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is FAU 3749 over Big Creek?

The structure is 107 ft (32.6 m) long with a longest span of 52 ft (15.9 m) and a deck 32 ft wide.

Who owns FAU 3749 over Big Creek?

It is owned by the County Highway Agency.