US Bridges

Ill 17 over Fitch Creek

Fair

Knox County, Illinois · 2 MI W of Lafayette · Structure no. 048008100000000

Built
1989
36 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
66 ft
1 main span
Daily traffic
425
2023 count
Owner
State
State Highway Agency

About this bridge

Ill 17 over Fitch Creek is a prestressed concrete stringer/multi-beam or girder carrying Ill 17 over Fitch Creek in Knox County, Illinois. It was built in 1989, so it is 36 years old, younger 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 6 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 425 vehicles a day, roughly 6% of them trucks, projected to reach 505 by 2046. The structure is 66 ft (20.2 m) long and 35 ft wide. If it were closed, the detour would be 24.2 mi (39 km).

Location

Open in Google Maps
CarriesIll 17
CrossesFitch Creek
Location2 MI W of Lafayette
RouteState Highway 17
CountyKnox County
StateIllinois
Coordinates41.10449, -90.01702
Functional classRural Major 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.5 US tons
Inventory rating40 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length66 ft (20.2 m)
Longest span61 ft (18.7 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic425 (2023)
Projected traffic505 by 2046
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.2 mi (39 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Ill 17 over Fitch Creek built?

It was built in 1989, making it 36 years old in 2025.

What condition is Ill 17 over Fitch Creek 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 February 2024.

How much traffic does Ill 17 over Fitch Creek carry?

About 425 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is Ill 17 over Fitch Creek?

The structure is 66 ft (20.2 m) long with a longest span of 61 ft (18.7 m) and a deck 35 ft wide.

Who owns Ill 17 over Fitch Creek?

It is owned by the State Highway Agency.