US Bridges

FAS 107 over CSX RR

Good

Unicoi County, Tennessee · Near Erwin · Structure no. 86SR1070013

Built
2015
10 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,101 ft
7 main spans
Daily traffic
9,422
2021 count
Owner
State
State Highway Agency

About this bridge

FAS 107 over CSX RR is a steel continuous stringer/multi-beam or girder carrying FAS 107 over CSX RR in Unicoi County, Tennessee. It was built in 2015, so it is 10 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 9,422 vehicles a day, roughly 4% of them trucks, projected to reach 13,744 by 2040. The structure is 1,101 ft (335.6 m) long and 43 ft wide. If it were closed, the detour would be 34.2 mi (55 km).

Location

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CarriesFAS 107
CrossesCSX RR
LocationNear Erwin
RouteState Highway 107
CountyUnicoi County
StateTennessee
Coordinates36.15083, -82.41361
Functional classUrban Minor Arterial

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 inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans7
Design loadHL 93
Structure length1,101 ft (335.6 m)
Longest span150 ft (45.7 m)
Deck width43 ft (13 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,422 (2021)
Projected traffic13,744 by 2040
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and railroad
CrossesRailroad
Detour if closed34.2 mi (55 km)
TollOn a free road
National Highway SystemNo

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 FAS 107 over CSX RR built?

It was built in 2015, making it 10 years old in 2025.

What condition is FAS 107 over CSX RR 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 October 2024.

How much traffic does FAS 107 over CSX RR carry?

About 9,422 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is FAS 107 over CSX RR?

The structure is 1,101 ft (335.6 m) long with a longest span of 150 ft (45.7 m) and a deck 43 ft wide.

Who owns FAS 107 over CSX RR?

It is owned by the State Highway Agency.