US Bridges

FAU 4746 over Spencer Creek

Good

Williamson County, Tennessee · 1.7 MI NE JCT SR6&SR397 · Structure no. 940B1500001

Built
1990
35 years old
Condition
Good
inspected June 2023
Type
Culvert
Concrete Continuous
Length
37 ft
2 main spans
Daily traffic
25,941
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

FAU 4746 over Spencer Creek is a concrete continuous culvert carrying FAU 4746 over Spencer Creek in Williamson County, Tennessee. It was built in 1990, so it is 35 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 25,941 vehicles a day, roughly 7% of them trucks, projected to reach 41,506 by 2042. The structure is 37 ft (11.3 m) long. If it were closed, the detour would be 9.9 mi (16 km).

CarriesFAU 4746
CrossesSpencer Creek
Location1.7 MI NE JCT SR6&SR397
RouteCity Street 4746
Coordinates35.9531, -86.81757
Functional classUrban Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length37 ft (11.3 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25,941 (2021)
Projected traffic41,506 by 2042
Trucks7%
Lanes on structure4
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$562,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FAU 4746 over Spencer Creek built?

It was built in 1990, making it 35 years old in 2025.

What condition is FAU 4746 over Spencer 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 June 2023.

How much traffic does FAU 4746 over Spencer Creek carry?

About 25,941 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is FAU 4746 over Spencer Creek?

The structure is 37 ft (11.3 m) long with a longest span of 12 ft (3.7 m).

Who owns FAU 4746 over Spencer Creek?

It is owned by the City or Municipal Highway Agency.