US Bridges

Ill 75 over Timothy Creek

Good

Winnebago County, Illinois · 0.3 MI E Meridian RD · Structure no. 101018300000000

Built
2007
18 years old
Condition
Good
inspected October 2021
Type
Frame
Concrete
Length
39 ft
1 main span
Daily traffic
2,550
2023 count
Owner
State
State Highway Agency

About this bridge

Ill 75 over Timothy Creek is a concrete frame carrying Ill 75 over Timothy Creek in Winnebago County, Illinois. It was built in 2007, so it is 18 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,550 vehicles a day, roughly 12% of them trucks, projected to reach 3,081 by 2046. The structure is 39 ft (11.9 m) long and 42 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesIll 75
CrossesTimothy Creek
Location0.3 MI E Meridian RD
RouteState Highway 75
Coordinates42.4243, -89.16797
Functional classRural 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
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20 + Mod
Structure length39 ft (11.9 m)
Longest span38 ft (11.5 m)
Deck width42 ft (12.8 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,550 (2023)
Projected traffic3,081 by 2046
Trucks12%
Lanes on structure2
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 Ill 75 over Timothy Creek built?

It was built in 2007, making it 18 years old in 2025.

What condition is Ill 75 over Timothy 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 October 2021.

How much traffic does Ill 75 over Timothy Creek carry?

About 2,550 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is Ill 75 over Timothy Creek?

The structure is 39 ft (11.9 m) long with a longest span of 38 ft (11.5 m) and a deck 42 ft wide.

Who owns Ill 75 over Timothy Creek?

It is owned by the State Highway Agency.