US Bridges

FAS 46 over Parker Branch

Good

Williamson County, Tennessee · 2.8 M SW JCT SR46&SR96 · Structure no. 94S61480007

Built
1940
85 years old
Condition
Good
inspected November 2024
Type
Culvert
Concrete Continuous
Length
34 ft
3 main spans
Daily traffic
3,886
2021 count
Owner
State
State Highway Agency

About this bridge

FAS 46 over Parker Branch is a concrete continuous culvert carrying FAS 46 over Parker Branch in Williamson County, Tennessee. It was built in 1940, so it is 85 years old, older 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 3,886 vehicles a day, roughly 6% of them trucks, projected to reach 6,384 by 2041. The structure is 34 ft (10.4 m) long. If it were closed, the detour would be 5 mi (8 km).

CarriesFAS 46
CrossesParker Branch
Location2.8 M SW JCT SR46&SR96
RouteState Highway 46
Coordinates35.9188, -86.97885
Functional classRural 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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.6 US tons
Inventory rating31.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadH 15
Structure length34 ft (10.4 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,886 (2021)
Projected traffic6,384 by 2041
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FAS 46 over Parker Branch built?

It was built in 1940, making it 85 years old in 2025.

What condition is FAS 46 over Parker Branch 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 November 2024.

How much traffic does FAS 46 over Parker Branch carry?

About 3,886 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is FAS 46 over Parker Branch?

The structure is 34 ft (10.4 m) long with a longest span of 10 ft (3 m).

Who owns FAS 46 over Parker Branch?

It is owned by the State Highway Agency.