US Bridges

Oak Street 6900 over FAP-805 (ILL-161)

Fair

Marion County, Illinois · Centralia · Structure no. 061600300000000

Built
1954
71 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
42 ft
1 main span
Daily traffic
150
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Oak Street 6900 over FAP-805 (ILL-161) is a steel stringer/multi-beam or girder carrying Oak Street 6900 over FAP-805 (ILL-161) in Marion County, Illinois. It was built in 1954, so it is 71 years old, older than the Illinois average of 45.3 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 150 vehicles a day, roughly 18% of them trucks, projected to reach 177 by 2046. The structure is 42 ft (12.8 m) long and 40 ft wide.

CarriesOak Street 6900
CrossesFAP-805 (ILL-161)
LocationCentralia
RouteCity Street 0
Coordinates38.52919, -89.13534
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionMay 2024
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 geometry6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating50.4 US tons
Inventory rating30.3 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length42 ft (12.8 m)
Longest span39 ft (11.9 m)
Deck width40 ft (12.2 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2022)
Projected traffic177 by 2046
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$146,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Oak Street 6900 over FAP-805 (ILL-161) built?

It was built in 1954, making it 71 years old in 2025.

What condition is Oak Street 6900 over FAP-805 (ILL-161) 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 May 2024.

How much traffic does Oak Street 6900 over FAP-805 (ILL-161) carry?

About 150 vehicles per day (2022 count), of which roughly 18% are trucks.

How long is Oak Street 6900 over FAP-805 (ILL-161)?

The structure is 42 ft (12.8 m) long with a longest span of 39 ft (11.9 m) and a deck 40 ft wide.

Who owns Oak Street 6900 over FAP-805 (ILL-161)?

It is owned by the City or Municipal Highway Agency.