US Bridges

FAP 106 over Lynnwood Branch

Good

Williamson County, Tennessee · 2.5 M S JCT SR106&SR46 · Structure no. 94SR1060017

Built
2001
24 years old
Condition
Good
inspected January 2025
Type
Culvert
Concrete Continuous
Length
58 ft
3 main spans
Daily traffic
16,922
2021 count
Owner
State
State Highway Agency

About this bridge

FAP 106 over Lynnwood Branch is a concrete continuous culvert carrying FAP 106 over Lynnwood Branch in Williamson County, Tennessee. It was built in 2001, so it is 24 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 16,922 vehicles a day, roughly 9% of them trucks, projected to reach 24,330 by 2041. The structure is 58 ft (17.7 m) long and 93 ft wide. If it were closed, the detour would be 21.7 mi (35 km).

CarriesFAP 106
CrossesLynnwood Branch
Location2.5 M S JCT SR106&SR46
RouteU.S. Route 431
Coordinates35.97427, -86.88627
Functional classUrban Other Principal 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 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 geometry9: Superior to present desirable criteria
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 typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length58 ft (17.7 m)
Longest span18 ft (5.5 m)
Deck width93 ft (28.3 m)
Roadway width82 ft (25 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,922 (2021)
Projected traffic24,330 by 2041
Trucks9%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed21.7 mi (35 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 FAP 106 over Lynnwood Branch built?

It was built in 2001, making it 24 years old in 2025.

What condition is FAP 106 over Lynnwood 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 January 2025.

How much traffic does FAP 106 over Lynnwood Branch carry?

About 16,922 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is FAP 106 over Lynnwood Branch?

The structure is 58 ft (17.7 m) long with a longest span of 18 ft (5.5 m) and a deck 93 ft wide.

Who owns FAP 106 over Lynnwood Branch?

It is owned by the State Highway Agency.