US Bridges

Nfa A315 244018K over CSX Railroad

Good

Washington County, Tennessee · N Off I181-W of SR36 · Structure no. 900A3150001

Built
2007
18 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
158 ft
3 main spans
Daily traffic
220
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A315 244018K over CSX Railroad is a prestressed concrete continuous stringer/multi-beam or girder carrying Nfa A315 244018K over CSX Railroad in Washington County, Tennessee. It was built in 2007, so it is 18 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 220 vehicles a day, roughly 2% of them trucks, projected to reach 352 by 2042. The structure is 158 ft (48.2 m) long and 26 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesNfa A315 244018K
CrossesCSX Railroad
LocationN Off I181-W of SR36
RouteCounty Highway 315
Coordinates36.39767, -82.44292
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78.6 US tons
Inventory rating57.1 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length158 ft (48.2 m)
Longest span57 ft (17.4 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic220 (2020)
Projected traffic352 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Nfa A315 244018K over CSX Railroad built?

It was built in 2007, making it 18 years old in 2025.

What condition is Nfa A315 244018K over CSX Railroad 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 June 2024.

How much traffic does Nfa A315 244018K over CSX Railroad carry?

About 220 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A315 244018K over CSX Railroad?

The structure is 158 ft (48.2 m) long with a longest span of 57 ft (17.4 m) and a deck 26 ft wide.

Who owns Nfa A315 244018K over CSX Railroad?

It is owned by the County Highway Agency.