US Bridges

Big Timber Road over Tyler Creek

Good

Kane County, Illinois · 0.5M W Ill 31 · Structure no. 045332200000000

Built
1990
35 years old
Condition
Good
inspected April 2022
Type
Stringer/Multi-beam or Girder
Steel
Length
87 ft
1 main span
Daily traffic
15,500
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Big Timber Road over Tyler Creek is a steel stringer/multi-beam or girder carrying Big Timber Road over Tyler Creek in Kane County, Illinois. It was built in 1990, so it is 35 years old, younger than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 15,500 vehicles a day, roughly 8% of them trucks, projected to reach 18,178 by 2046. The structure is 87 ft (26.4 m) long and 66 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesBig Timber Road
CrossesTyler Creek
Location0.5M W Ill 31
CountyKane County
StateIllinois
Coordinates42.05867, -88.30444
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating59.3 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length87 ft (26.4 m)
Longest span84 ft (25.6 m)
Deck width66 ft (20.1 m)
Roadway width54 ft (16.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,500 (2023)
Projected traffic18,178 by 2046
Trucks8%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Big Timber Road over Tyler Creek built?

It was built in 1990, making it 35 years old in 2025.

What condition is Big Timber Road over Tyler Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2022.

How much traffic does Big Timber Road over Tyler Creek carry?

About 15,500 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is Big Timber Road over Tyler Creek?

The structure is 87 ft (26.4 m) long with a longest span of 84 ft (25.6 m) and a deck 66 ft wide.

Who owns Big Timber Road over Tyler Creek?

It is owned by the City or Municipal Highway Agency.