US Bridges

FAP 6 over Columbia Pk / I 840

Good

Williamson County, Tennessee · 2.0 MI W JCT SR106&I840 · Structure no. 94SR8400047

Built
2004
21 years old
Condition
Good
inspected February 2025
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
300 ft
2 main spans
Daily traffic
20,189
2021 count
Owner
State
State Highway Agency

About this bridge

FAP 6 over Columbia Pk / I 840 is a steel continuous stringer/multi-beam or girder carrying FAP 6 over Columbia Pk / I 840 in Williamson County, Tennessee. It was built in 2004, so it is 21 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 20,189 vehicles a day, roughly 7% of them trucks, projected to reach 31,520 by 2041. The structure is 300 ft (91.4 m) long and 94 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesFAP 6
CrossesColumbia Pk / I 840
Location2.0 MI W JCT SR106&I840
RouteU.S. Route 31
Coordinates35.82143, -86.8877
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.7 US tons
Inventory rating32.8 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length300 ft (91.4 m)
Longest span150 ft (45.7 m)
Deck width94 ft (28.6 m)
Roadway width92 ft (28 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,189 (2021)
Projected traffic31,520 by 2041
Trucks7%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed9.9 mi (16 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was FAP 6 over Columbia Pk / I 840 built?

It was built in 2004, making it 21 years old in 2025.

What condition is FAP 6 over Columbia Pk / I 840 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 February 2025.

How much traffic does FAP 6 over Columbia Pk / I 840 carry?

About 20,189 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is FAP 6 over Columbia Pk / I 840?

The structure is 300 ft (91.4 m) long with a longest span of 150 ft (45.7 m) and a deck 94 ft wide.

Who owns FAP 6 over Columbia Pk / I 840?

It is owned by the State Highway Agency.