US Bridges

FAP 106 over Cartwright Creek

FairPosted for load

Williamson County, Tennessee · .1 M N JCT SR106&SR46 · Structure no. 94SR1060019

Built
1938
87 years old
Condition
Fair
inspected March 2023
Type
Tee Beam
Concrete
Length
114 ft
4 main spans
Daily traffic
18,784
2021 count
Owner
State
State Highway Agency

About this bridge

FAP 106 over Cartwright Creek is a concrete tee beam carrying FAP 106 over Cartwright Creek in Williamson County, Tennessee. It was built in 1938, so it is 87 years old, older 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 18,784 vehicles a day, roughly 9% of them trucks, projected to reach 26,573 by 2042. The structure is 114 ft (34.7 m) long and 27 ft wide. If it were closed, the detour would be 21.7 mi (35 km).

Location

Open in Google Maps
CarriesFAP 106
CrossesCartwright Creek
Location.1 M N JCT SR106&SR46
RouteU.S. Route 431
CountyWilliamson County
StateTennessee
Coordinates36.00737, -86.88705
Functional classUrban Other Principal 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating32.2 US tons
Inventory rating24.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length114 ft (34.7 m)
Longest span29 ft (8.8 m)
Deck width27 ft (8.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,784 (2021)
Projected traffic26,573 by 2042
Trucks9%
Lanes on structure2
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 statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.8 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FAP 106 over Cartwright Creek built?

It was built in 1938, making it 87 years old in 2025.

What condition is FAP 106 over Cartwright 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 March 2023.

How much traffic does FAP 106 over Cartwright Creek carry?

About 18,784 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is FAP 106 over Cartwright Creek?

The structure is 114 ft (34.7 m) long with a longest span of 29 ft (8.8 m) and a deck 27 ft wide.

Who owns FAP 106 over Cartwright Creek?

It is owned by the State Highway Agency.