US Bridges

FAU 4746 over Spencer Creek

Fair

Williamson County, Tennessee · 1.7 MI NE JCT SR6&SR397 · Structure no. 940B1500003

Built
1996
29 years old
Condition
Fair
inspected June 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
44 ft
2 main spans
Daily traffic
18,821
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

FAU 4746 over Spencer Creek is a prestressed concrete continuous box beam or girders - single or spread carrying FAU 4746 over Spencer Creek in Williamson County, Tennessee. It was built in 1996, so it is 29 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 18,821 vehicles a day, roughly 7% of them trucks, projected to reach 29,163 by 2041. The structure is 44 ft (13.4 m) long and 89 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesFAU 4746
CrossesSpencer Creek
Location1.7 MI NE JCT SR6&SR397
RouteCity Street 4746
CountyWilliamson County
StateTennessee
Coordinates35.9413, -86.82111
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length44 ft (13.4 m)
Longest span41 ft (12.5 m)
Deck width89 ft (27.1 m)
Roadway width73 ft (22.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,821 (2021)
Projected traffic29,163 by 2041
Trucks7%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed9.9 mi (16 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FAU 4746 over Spencer Creek built?

It was built in 1996, making it 29 years old in 2025.

What condition is FAU 4746 over Spencer 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 June 2023.

How much traffic does FAU 4746 over Spencer Creek carry?

About 18,821 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is FAU 4746 over Spencer Creek?

The structure is 44 ft (13.4 m) long with a longest span of 41 ft (12.5 m) and a deck 89 ft wide.

Who owns FAU 4746 over Spencer Creek?

It is owned by the City or Municipal Highway Agency.