US Bridges

US 67 & Ill 100 over Willow Creek

Good

Morgan County, Illinois · 1.2MI N JCT Il 104 · Structure no. 069006500000000

Built
1997
28 years old
Condition
Good
inspected September 2023
Type
Slab
Concrete Continuous
Length
103 ft
3 main spans
Daily traffic
2,200
2023 count
Owner
State
State Highway Agency

About this bridge

US 67 & Ill 100 over Willow Creek is a concrete continuous slab carrying US 67 & Ill 100 over Willow Creek in Morgan County, Illinois. It was built in 1997, so it is 28 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 2,200 vehicles a day, roughly 21% of them trucks, projected to reach 2,121 by 2046. The structure is 103 ft (31.4 m) long and 35 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesUS 67 & Ill 100
CrossesWillow Creek
Location1.2MI N JCT Il 104
RouteU.S. Route 67
Coordinates39.84838, -90.50546
Functional classRural Principal Arterial - Other

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
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 adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.3 US tons
Inventory rating42.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length103 ft (31.4 m)
Longest span38 ft (11.7 m)
Deck width35 ft (10.6 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,200 (2023)
Projected traffic2,121 by 2046
Trucks21%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 67 & Ill 100 over Willow Creek built?

It was built in 1997, making it 28 years old in 2025.

What condition is US 67 & Ill 100 over Willow 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 September 2023.

How much traffic does US 67 & Ill 100 over Willow Creek carry?

About 2,200 vehicles per day (2023 count), of which roughly 21% are trucks.

How long is US 67 & Ill 100 over Willow Creek?

The structure is 103 ft (31.4 m) long with a longest span of 38 ft (11.7 m) and a deck 35 ft wide.

Who owns US 67 & Ill 100 over Willow Creek?

It is owned by the State Highway Agency.