US Bridges

FAP 6 350615G over CSX Railroad

PoorPosted for load

Williamson County, Tennessee · 3 M N JCT SR6&SR248 · Structure no. 94SR0060009

Built
1930
95 years old
Condition
Poor
inspected February 2023
Type
Tee Beam
Concrete
Length
191 ft
5 main spans
Daily traffic
14,336
2021 count
Owner
State
State Highway Agency

About this bridge

FAP 6 350615G over CSX Railroad is a concrete tee beam carrying FAP 6 350615G over CSX Railroad in Williamson County, Tennessee. It was built in 1930, so it is 95 years old, older than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 14,336 vehicles a day, roughly 9% of them trucks, projected to reach 22,938 by 2042. The structure is 191 ft (58.2 m) long and 33 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

Location

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CarriesFAP 6 350615G
CrossesCSX Railroad
Location3 M N JCT SR6&SR248
RouteU.S. Route 31
CountyWilliamson County
StateTennessee
Coordinates35.87537, -86.8824
Functional classUrban Other Principal Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating29.7 US tons
Inventory rating22.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadH 15
Structure length191 ft (58.2 m)
Longest span43 ft (13.1 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,336 (2021)
Projected traffic22,938 by 2042
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed19.9 mi (32 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$2.8 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was FAP 6 350615G over CSX Railroad built?

It was built in 1930, making it 95 years old in 2025.

What condition is FAP 6 350615G over CSX Railroad in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in February 2023.

How much traffic does FAP 6 350615G over CSX Railroad carry?

About 14,336 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is FAP 6 350615G over CSX Railroad?

The structure is 191 ft (58.2 m) long with a longest span of 43 ft (13.1 m) and a deck 33 ft wide.

Who owns FAP 6 350615G over CSX Railroad?

It is owned by the State Highway Agency.