US Bridges

FAS 335 over CSX Railroad

Good

Blount County, Tennessee · S of US321-W of Maryville · Structure no. 05SR3350001

Built
1985
40 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
162 ft
3 main spans
Daily traffic
8,909
2021 count
Owner
State
State Highway Agency

About this bridge

FAS 335 over CSX Railroad is a prestressed concrete stringer/multi-beam or girder carrying FAS 335 over CSX Railroad in Blount County, Tennessee. It was built in 1985, so it is 40 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 8,909 vehicles a day, roughly 4% of them trucks, projected to reach 13,648 by 2042. The structure is 162 ft (49.4 m) long and 44 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesFAS 335
CrossesCSX Railroad
LocationS of US321-W of Maryville
RouteState Highway 335
CountyBlount County
StateTennessee
Coordinates35.74135, -84.04198
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionOctober 2023
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 rating65.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length162 ft (49.4 m)
Longest span64 ft (19.5 m)
Deck width44 ft (13.4 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,909 (2021)
Projected traffic13,648 by 2042
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 FAS 335 over CSX Railroad built?

It was built in 1985, making it 40 years old in 2025.

What condition is FAS 335 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 October 2023.

How much traffic does FAS 335 over CSX Railroad carry?

About 8,909 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is FAS 335 over CSX Railroad?

The structure is 162 ft (49.4 m) long with a longest span of 64 ft (19.5 m) and a deck 44 ft wide.

Who owns FAS 335 over CSX Railroad?

It is owned by the State Highway Agency.