US Bridges

Il 25 over Poplar Creek

Fair

Kane County, Illinois · 0.4 M S of US 20 · Structure no. 045500000000000

Built
1989
36 years old
Condition
Fair
inspected January 2025
Type
Slab
Concrete Continuous
Length
54 ft
3 main spans
Daily traffic
15,900
2023 count
Owner
State
State Highway Agency

About this bridge

Il 25 over Poplar Creek is a concrete continuous slab carrying Il 25 over Poplar Creek in Kane 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 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 15,900 vehicles a day, roughly 15% of them trucks, projected to reach 18,178 by 2046. The structure is 54 ft (16.4 m) long and 60 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesIl 25
CrossesPoplar Creek
Location0.4 M S of US 20
RouteState Highway 25
CountyKane County
StateIllinois
Coordinates42.01434, -88.2693
Functional classUrban Other Principal Arterial

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.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79.3 US tons
Inventory rating47.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length54 ft (16.4 m)
Longest span22 ft (6.6 m)
Deck width60 ft (18.4 m)
Roadway width48 ft (14.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,900 (2023)
Projected traffic18,178 by 2046
Trucks15%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$735,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Il 25 over Poplar Creek built?

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

What condition is Il 25 over Poplar 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 January 2025.

How much traffic does Il 25 over Poplar Creek carry?

About 15,900 vehicles per day (2023 count), of which roughly 15% are trucks.

How long is Il 25 over Poplar Creek?

The structure is 54 ft (16.4 m) long with a longest span of 22 ft (6.6 m) and a deck 60 ft wide.

Who owns Il 25 over Poplar Creek?

It is owned by the State Highway Agency.