US Bridges

FAU 4778 over U. S. Government RR

Fair

Sullivan County, Tennessee · S of 11W-NEAR Hawkins Co. · Structure no. 820B7450001

Built
1975
50 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
111 ft
3 main spans
Daily traffic
2,282
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

FAU 4778 over U. S. Government RR is a prestressed concrete continuous stringer/multi-beam or girder carrying FAU 4778 over U. S. Government RR in Sullivan County, Tennessee. It was built in 1975, so it is 50 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.

It carries about 2,282 vehicles a day, roughly 1% of them trucks, projected to reach 3,256 by 2042. The structure is 111 ft (33.8 m) long and 31 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesFAU 4778
CrossesU. S. Government RR
LocationS of 11W-NEAR Hawkins Co.
RouteCity Street 4778
CountySullivan County
StateTennessee
Coordinates36.53815, -82.5918
Functional classUrban Collector

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length111 ft (33.8 m)
Longest span52 ft (15.8 m)
Deck width31 ft (9.3 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,282 (2021)
Projected traffic3,256 by 2042
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$662,000 (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was FAU 4778 over U. S. Government RR built?

It was built in 1975, making it 50 years old in 2025.

What condition is FAU 4778 over U. S. Government RR 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 2024.

How much traffic does FAU 4778 over U. S. Government RR carry?

About 2,282 vehicles per day (2021 count), of which roughly 1% are trucks.

How long is FAU 4778 over U. S. Government RR?

The structure is 111 ft (33.8 m) long with a longest span of 52 ft (15.8 m) and a deck 31 ft wide.

Who owns FAU 4778 over U. S. Government RR?

It is owned by the City or Municipal Highway Agency.