US Bridges

FAU 104 297393G over Illionis Central R.R.

Fair

Dyer County, Tennessee · 0.6 M. E JCT SR104&SR211 · Structure no. 23SR1040001

Built
1936
89 years old, rebuilt 1993
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
224 ft
7 main spans
Daily traffic
4,628
2021 count
Owner
State
State Highway Agency

About this bridge

FAU 104 297393G over Illionis Central R.R. is a steel stringer/multi-beam or girder carrying FAU 104 297393G over Illionis Central R.R. in Dyer County, Tennessee. It was built in 1936 and reconstructed in 1993, so it is 89 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 4,628 vehicles a day, roughly 3% of them trucks, projected to reach 7,030 by 2042. The structure is 224 ft (68.3 m) long and 52 ft wide. If it were closed, the detour would be 59 mi (95 km).

Location

Open in Google Maps
CarriesFAU 104 297393G
CrossesIllionis Central R.R.
Location0.6 M. E JCT SR104&SR211
RouteState Highway 104
CountyDyer County
StateTennessee
Coordinates36.03125, -89.37519
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34.3 US tons
Inventory rating26.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans7
Design loadH 20
Structure length224 ft (68.3 m)
Longest span36 ft (11 m)
Deck width52 ft (15.9 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,628 (2021)
Projected traffic7,030 by 2042
Trucks3%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed59 mi (95 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$4.2 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was FAU 104 297393G over Illionis Central R.R. built?

It was built in 1936, making it 89 years old in 2025. It was reconstructed in 1993.

What condition is FAU 104 297393G over Illionis Central R.R. 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 October 2023.

How much traffic does FAU 104 297393G over Illionis Central R.R. carry?

About 4,628 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is FAU 104 297393G over Illionis Central R.R.?

The structure is 224 ft (68.3 m) long with a longest span of 36 ft (11 m) and a deck 52 ft wide.

Who owns FAU 104 297393G over Illionis Central R.R.?

It is owned by the State Highway Agency.