US Bridges

Il 31 over Tyler Creek

Fair

Kane County, Illinois · 0.3 M S of I-90 · Structure no. 045001500000000

Built
1958
67 years old, rebuilt 2007
Condition
Fair
inspected January 2024
Type
Slab
Concrete
Length
37 ft
1 main span
Daily traffic
21,000
2023 count
Owner
State
State Highway Agency

About this bridge

Il 31 over Tyler Creek is a concrete slab carrying Il 31 over Tyler Creek in Kane County, Illinois. It was built in 1958 and reconstructed in 2007, so it is 67 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 21,000 vehicles a day, roughly 5% of them trucks, projected to reach 26,840 by 2046. The structure is 37 ft (11.4 m) long and 75 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesIl 31
CrossesTyler Creek
Location0.3 M S of I-90
RouteState Highway 31
CountyKane County
StateIllinois
Coordinates42.0619, -88.29271
Functional classUrban Minor 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66 US tons
Inventory rating39.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length37 ft (11.4 m)
Longest span36 ft (11 m)
Deck width75 ft (22.9 m)
Roadway width68 ft (20.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,000 (2023)
Projected traffic26,840 by 2046
Trucks5%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 Il 31 over Tyler Creek built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 2007.

What condition is Il 31 over Tyler 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 2024.

How much traffic does Il 31 over Tyler Creek carry?

About 21,000 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Il 31 over Tyler Creek?

The structure is 37 ft (11.4 m) long with a longest span of 36 ft (11 m) and a deck 75 ft wide.

Who owns Il 31 over Tyler Creek?

It is owned by the State Highway Agency.