US Bridges

Ill 106 over Hadley Creek

Fair

Pike County, Illinois · 1.4 MI NE Kinderhook · Structure no. 075000400000000

Built
1956
69 years old
Condition
Fair
inspected October 2023
Type
Slab
Concrete Continuous
Length
48 ft
2 main spans
Daily traffic
1,300
2023 count
Owner
State
State Highway Agency

About this bridge

Ill 106 over Hadley Creek is a concrete continuous slab carrying Ill 106 over Hadley Creek in Pike County, Illinois. It was built in 1956, so it is 69 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 6 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 1,300 vehicles a day, roughly 5% of them trucks, projected to reach 1,276 by 2046. The structure is 48 ft (14.7 m) long and 47 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesIll 106
CrossesHadley Creek
Location1.4 MI NE Kinderhook
RouteState Highway 106
Coordinates39.70737, -91.12457
Functional classRural Major Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.9 US tons
Inventory rating38.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length48 ft (14.7 m)
Longest span23 ft (7 m)
Deck width47 ft (14.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,300 (2023)
Projected traffic1,276 by 2046
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 106 over Hadley Creek built?

It was built in 1956, making it 69 years old in 2025.

What condition is Ill 106 over Hadley 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 October 2023.

How much traffic does Ill 106 over Hadley Creek carry?

About 1,300 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Ill 106 over Hadley Creek?

The structure is 48 ft (14.7 m) long with a longest span of 23 ft (7 m) and a deck 47 ft wide.

Who owns Ill 106 over Hadley Creek?

It is owned by the State Highway Agency.