US Bridges

FAU 4984 over S. Crest / I24 & E. Main

PoorPosted for load

Hamilton County, Tennessee · S. Crest / I-24 & E. Main · Structure no. 33I00240051

Built
1964
61 years old
Condition
Poor
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
615 ft
5 main spans
Daily traffic
879
2021 count
Owner
State
State Highway Agency

About this bridge

FAU 4984 over S. Crest / I24 & E. Main is a steel continuous stringer/multi-beam or girder carrying FAU 4984 over S. Crest / I24 & E. Main in Hamilton County, Tennessee. It was built in 1964, so it is 61 years old, older than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 879 vehicles a day, roughly 3% of them trucks, projected to reach 1,264 by 2041. The structure is 615 ft (187.4 m) long and 34 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesFAU 4984
CrossesS. Crest / I24 & E. Main
LocationS. Crest / I-24 & E. Main
RouteCity Street 4984
CountyHamilton County
StateTennessee
Coordinates35.02222, -85.2612
Functional classUrban Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be 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 rating22.8 US tons
Inventory rating17.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadH 15
Structure length615 ft (187.4 m)
Longest span155 ft (47.2 m)
Deck width34 ft (10.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic879 (2021)
Projected traffic1,264 by 2041
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$2,000 (2021 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was FAU 4984 over S. Crest / I24 & E. Main built?

It was built in 1964, making it 61 years old in 2025.

What condition is FAU 4984 over S. Crest / I24 & E. Main in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.

How much traffic does FAU 4984 over S. Crest / I24 & E. Main carry?

About 879 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is FAU 4984 over S. Crest / I24 & E. Main?

The structure is 615 ft (187.4 m) long with a longest span of 155 ft (47.2 m) and a deck 34 ft wide.

Who owns FAU 4984 over S. Crest / I24 & E. Main?

It is owned by the State Highway Agency.